/ext/mysqli/mysqli_api.c

Large files files are truncated, but you can click here to view the full file

/*
  +----------------------------------------------------------------------+
  | Copyright (c) The PHP Group                                          |
  +----------------------------------------------------------------------+
  | This source file is subject to version 3.01 of the PHP license,      |
  | that is bundled with this package in the file LICENSE, and is        |
  | available through the world-wide-web at the following url:           |
  | http://www.php.net/license/3_01.txt                                  |
  | If you did not receive a copy of the PHP license and are unable to   |
  | obtain it through the world-wide-web, please send a note to          |
  | license@php.net so we can mail you a copy immediately.               |
  +----------------------------------------------------------------------+
  | Authors: Georg Richter <georg@php.net>                               |
  |          Andrey Hristov <andrey@php.net>                             |
  |          Ulf Wendel <uw@php.net>                                     |
  +----------------------------------------------------------------------+
*/

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <signal.h>

#include "php.h"
#include "php_ini.h"
#include "php_globals.h"
#include "ext/standard/info.h"
#include "zend_smart_str.h"
#include "php_mysqli_structs.h"
#include "mysqli_priv.h"
#include "ext/mysqlnd/mysql_float_to_double.h"


#if !defined(MYSQLI_USE_MYSQLND)
/* {{{ mysqli_tx_cor_options_to_string */
static void mysqli_tx_cor_options_to_string(const MYSQL * const conn, smart_str * str, const uint32_t mode)
{
	if (mode & TRANS_COR_AND_CHAIN && !(mode & TRANS_COR_AND_NO_CHAIN)) {
		if (str->s && ZSTR_LEN(str->s)) {
			smart_str_appendl(str, " ", sizeof(" ") - 1);
		}
		smart_str_appendl(str, "AND CHAIN", sizeof("AND CHAIN") - 1);
	} else if (mode & TRANS_COR_AND_NO_CHAIN && !(mode & TRANS_COR_AND_CHAIN)) {
		if (str->s && ZSTR_LEN(str->s)) {
			smart_str_appendl(str, " ", sizeof(" ") - 1);
		}
		smart_str_appendl(str, "AND NO CHAIN", sizeof("AND NO CHAIN") - 1);
	}

	if (mode & TRANS_COR_RELEASE && !(mode & TRANS_COR_NO_RELEASE)) {
		if (str->s && ZSTR_LEN(str->s)) {
			smart_str_appendl(str, " ", sizeof(" ") - 1);
		}
		smart_str_appendl(str, "RELEASE", sizeof("RELEASE") - 1);
	} else if (mode & TRANS_COR_NO_RELEASE && !(mode & TRANS_COR_RELEASE)) {
		if (str->s && ZSTR_LEN(str->s)) {
			smart_str_appendl(str, " ", sizeof(" ") - 1);
		}
		smart_str_appendl(str, "NO RELEASE", sizeof("NO RELEASE") - 1);
	}
	smart_str_0(str);
}
/* }}} */

/* {{{ mysqlnd_escape_string_for_tx_name_in_comment */
char *
mysqli_escape_string_for_tx_name_in_comment(const char * const name)
{
	char * ret = NULL;
	if (name) {
		zend_bool warned = FALSE;
		const char * p_orig = name;
		char * p_copy;
		p_copy = ret = emalloc(strlen(name) + 1 + 2 + 2 + 1); /* space, open, close, NullS */
		*p_copy++ = ' ';
		*p_copy++ = '/';
		*p_copy++ = '*';
		while (1) {
			register char v = *p_orig;
			if (v == 0) {
				break;
			}
			if ((v >= '0' && v <= '9') ||
				(v >= 'a' && v <= 'z') ||
				(v >= 'A' && v <= 'Z') ||
				v == '-' ||
				v == '_' ||
				v == ' ' ||
				v == '=')
			{
				*p_copy++ = v;
			} else if (warned == FALSE) {
				php_error_docref(NULL, E_WARNING, "Transaction name truncated. Must be only [0-9A-Za-z\\-_=]+");
				warned = TRUE;
			}
			++p_orig;
		}
		*p_copy++ = '*';
		*p_copy++ = '/';
		*p_copy++ = 0;
	}
	return ret;
}
/* }}} */

/* {{{ mysqli_commit_or_rollback_libmysql */
static int mysqli_commit_or_rollback_libmysql(MYSQL * conn, zend_bool commit, const uint32_t mode, const char * const name)
{
	int ret;
	smart_str tmp_str = {0};
	mysqli_tx_cor_options_to_string(conn, &tmp_str, mode);
	smart_str_0(&tmp_str);

	{
		char *query;
		char *name_esc = mysqli_escape_string_for_tx_name_in_comment(name);
		size_t query_len;

		query_len = spprintf(&query, 0,
				(commit? "COMMIT%s %s":"ROLLBACK%s %s"), name_esc? name_esc:"", tmp_str.s? ZSTR_VAL(tmp_str.s):"");
		smart_str_free(&tmp_str);
		if (name_esc) {
			efree(name_esc);
			name_esc = NULL;
		}

		ret = mysql_real_query(conn, query, query_len);
		efree(query);
	}
	return ret;
}
/* }}} */
#endif

/* {{{ proto mixed mysqli_affected_rows(object link)
   Get number of affected rows in previous MySQL operation */
PHP_FUNCTION(mysqli_affected_rows)
{
	MY_MYSQL 		*mysql;
	zval  			*mysql_link;
	my_ulonglong	rc;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
		RETURN_THROWS();
	}

	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

	rc = mysql_affected_rows(mysql->mysql);
	if (rc == (my_ulonglong) -1) {
		RETURN_LONG(-1);
	}
	MYSQLI_RETURN_LONG_INT(rc);
}
/* }}} */

/* {{{ proto bool mysqli_autocommit(object link, bool mode)
   Turn auto commit on or of */
PHP_FUNCTION(mysqli_autocommit)
{
	MY_MYSQL	*mysql;
	zval		*mysql_link;
	zend_bool	automode;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Ob", &mysql_link, mysqli_link_class_entry, &automode) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

	if (mysql_autocommit(mysql->mysql, (my_bool)automode)) {
		RETURN_FALSE;
	}
	RETURN_TRUE;
}
/* }}} */

/* {{{ mysqli_stmt_bind_param_do_bind */
#ifndef MYSQLI_USE_MYSQLND
static
int mysqli_stmt_bind_param_do_bind(MY_STMT *stmt, unsigned int argc, unsigned int num_vars,
								   zval *args, unsigned int start, const char * const types)
{
	int				i, ofs;
	MYSQL_BIND		*bind;
	unsigned long	rc;

	/* prevent leak if variables are already bound */
	if (stmt->param.var_cnt) {
		php_free_stmt_bind_buffer(stmt->param, FETCH_SIMPLE);
	}

	stmt->param.is_null = ecalloc(num_vars, sizeof(char));
	bind = (MYSQL_BIND *) ecalloc(num_vars, sizeof(MYSQL_BIND));

	ofs = 0;
	for (i = start; i < argc; i++) {
		zval *param;
		if (Z_ISREF(args[i])) {
			param = Z_REFVAL(args[i]);
		} else {
			param = &args[i];
		}
		/* set specified type */
		switch (types[ofs]) {
			case 'd': /* Double */
				bind[ofs].buffer_type = MYSQL_TYPE_DOUBLE;
				bind[ofs].buffer = &Z_DVAL_P(param);
				bind[ofs].is_null = &stmt->param.is_null[ofs];
				break;

			case 'i': /* Integer */
#if SIZEOF_ZEND_LONG==8
				bind[ofs].buffer_type = MYSQL_TYPE_LONGLONG;
#elif SIZEOF_ZEND_LONG==4
				bind[ofs].buffer_type = MYSQL_TYPE_LONG;
#endif
				bind[ofs].buffer = &Z_LVAL_P(param);
				bind[ofs].is_null = &stmt->param.is_null[ofs];
				break;

			case 'b': /* Blob (send data) */
				bind[ofs].buffer_type = MYSQL_TYPE_LONG_BLOB;
				/* don't initialize is_null and length to 0 because we use ecalloc */
				break;

			case 's': /* string */
				bind[ofs].buffer_type = MYSQL_TYPE_VAR_STRING;
				/* don't initialize buffer and buffer_length because we use ecalloc */
				bind[ofs].is_null = &stmt->param.is_null[ofs];
				break;

			default:
				php_error_docref(NULL, E_WARNING, "Undefined fieldtype %c (parameter %d)", types[ofs], i+1);
				rc = 1;
				goto end_1;
		}
		ofs++;
	}
	rc = mysql_stmt_bind_param(stmt->stmt, bind);

end_1:
	if (rc) {
		efree(stmt->param.is_null);
	} else {
		stmt->param.var_cnt = num_vars;
		stmt->param.vars = safe_emalloc(num_vars, sizeof(zval), 0);
		for (i = 0; i < num_vars; i++) {
			if (bind[i].buffer_type != MYSQL_TYPE_LONG_BLOB) {
				ZVAL_COPY(&stmt->param.vars[i], &args[i+start]);
			} else {
				ZVAL_UNDEF(&stmt->param.vars[i]);
			}
		}
	}
	efree(bind);

	return rc;
}
#else
static
int mysqli_stmt_bind_param_do_bind(MY_STMT *stmt, unsigned int argc, unsigned int num_vars,
								   zval *args, unsigned int start, const char * const types)
{
	unsigned int i;
	MYSQLND_PARAM_BIND	*params;
	enum_func_status	ret = FAIL;

	/* If no params -> skip binding and return directly */
	if (argc == start) {
		return PASS;
	}
	params = mysqlnd_stmt_alloc_param_bind(stmt->stmt);
	if (!params) {
		goto end;
	}
	for (i = 0; i < (argc - start); i++) {
		zend_uchar type;
		switch (types[i]) {
			case 'd': /* Double */
				type = MYSQL_TYPE_DOUBLE;
				break;
			case 'i': /* Integer */
#if SIZEOF_ZEND_LONG==8
				type = MYSQL_TYPE_LONGLONG;
#elif SIZEOF_ZEND_LONG==4
				type = MYSQL_TYPE_LONG;
#endif
				break;
			case 'b': /* Blob (send data) */
				type = MYSQL_TYPE_LONG_BLOB;
				break;
			case 's': /* string */
				type = MYSQL_TYPE_VAR_STRING;
				break;
			default:
				/* We count parameters from 1 */
				php_error_docref(NULL, E_WARNING, "Undefined fieldtype %c (parameter %d)", types[i], i + start + 1);
				ret = FAIL;
				mysqlnd_stmt_free_param_bind(stmt->stmt, params);
				goto end;
		}
		ZVAL_COPY_VALUE(&params[i].zv, &args[i + start]);
		params[i].type = type;
	}
	ret = mysqlnd_stmt_bind_param(stmt->stmt, params);

end:
	return ret;
}
#endif
/* }}} */

/* {{{ proto bool mysqli_stmt_bind_param(object stmt, string types, mixed variable [,mixed ...])
   Bind variables to a prepared statement as parameters */
PHP_FUNCTION(mysqli_stmt_bind_param)
{
	zval			*args;
	int				argc = ZEND_NUM_ARGS();
	int				num_vars;
	int				start = 2;
	MY_STMT			*stmt;
	zval			*mysql_stmt;
	char			*types;
	size_t			types_len;
	zend_ulong	rc;

	/* calculate and check number of parameters */
	if (argc < 2) {
		/* there has to be at least one pair */
		WRONG_PARAM_COUNT;
	}

	if (zend_parse_method_parameters((getThis()) ? 1:2, getThis(), "Os", &mysql_stmt, mysqli_stmt_class_entry,
									&types, &types_len) == FAILURE) {
		RETURN_THROWS();
	}

	MYSQLI_FETCH_RESOURCE_STMT(stmt, mysql_stmt, MYSQLI_STATUS_VALID);

	num_vars = argc - 1;
	if (getThis()) {
		start = 1;
	} else {
		/* ignore handle parameter in procedural interface*/
		--num_vars;
	}
	if (!types_len) {
		php_error_docref(NULL, E_WARNING, "Invalid type or no types specified");
		RETURN_FALSE;
	}

	if (types_len != (size_t)(argc - start)) {
		/* number of bind variables doesn't match number of elements in type definition string */
		php_error_docref(NULL, E_WARNING, "Number of elements in type definition string doesn't match number of bind variables");
		RETURN_FALSE;
	}

	if (types_len != mysql_stmt_param_count(stmt->stmt)) {
		php_error_docref(NULL, E_WARNING, "Number of variables doesn't match number of parameters in prepared statement");
		RETURN_FALSE;
	}

	args = safe_emalloc(argc, sizeof(zval), 0);

	if (zend_get_parameters_array_ex(argc, args) == FAILURE) {
		zend_wrong_param_count();
		rc = 1;
	} else {
		rc = mysqli_stmt_bind_param_do_bind(stmt, argc, num_vars, args, start, types);
		MYSQLI_REPORT_STMT_ERROR(stmt->stmt);
	}

	efree(args);

	RETURN_BOOL(!rc);
}
/* }}} */

/* {{{ mysqli_stmt_bind_result_do_bind */
#ifndef MYSQLI_USE_MYSQLND
/* TODO:
   do_alloca, free_alloca
*/
static int
mysqli_stmt_bind_result_do_bind(MY_STMT *stmt, zval *args, unsigned int argc)
{
	MYSQL_BIND	*bind;
	int			i, ofs;
	int			var_cnt = argc;
	zend_long		col_type;
	zend_ulong		rc;

	/* prevent leak if variables are already bound */
	if (stmt->result.var_cnt) {
		php_free_stmt_bind_buffer(stmt->result, FETCH_RESULT);
	}

	bind = (MYSQL_BIND *)ecalloc(var_cnt, sizeof(MYSQL_BIND));
	{
		int size;
		char *p = emalloc(size= var_cnt * (sizeof(char) + sizeof(VAR_BUFFER)));
		stmt->result.buf = (VAR_BUFFER *) p;
		stmt->result.is_null = p + var_cnt * sizeof(VAR_BUFFER);
		memset(p, 0, size);
	}

	for (i = 0; i < var_cnt; i++) {
		ofs = i;
		col_type = (stmt->stmt->fields) ? stmt->stmt->fields[ofs].type : MYSQL_TYPE_STRING;

		switch (col_type) {
			case MYSQL_TYPE_FLOAT:
				stmt->result.buf[ofs].type = IS_DOUBLE;
				stmt->result.buf[ofs].buflen = sizeof(float);

				stmt->result.buf[ofs].val = (char *)emalloc(sizeof(float));
				bind[ofs].buffer_type = MYSQL_TYPE_FLOAT;
				bind[ofs].buffer = stmt->result.buf[ofs].val;
				bind[ofs].is_null = &stmt->result.is_null[ofs];
				break;

			case MYSQL_TYPE_DOUBLE:
				stmt->result.buf[ofs].type = IS_DOUBLE;
				stmt->result.buf[ofs].buflen = sizeof(double);

				/* allocate buffer for double */
				stmt->result.buf[ofs].val = (char *)emalloc(sizeof(double));
				bind[ofs].buffer_type = MYSQL_TYPE_DOUBLE;
				bind[ofs].buffer = stmt->result.buf[ofs].val;
				bind[ofs].is_null = &stmt->result.is_null[ofs];
				break;

			case MYSQL_TYPE_NULL:
				stmt->result.buf[ofs].type = IS_NULL;
				/*
				  don't initialize to 0 :
				  1. stmt->result.buf[ofs].buflen
				  2. bind[ofs].buffer
				  3. bind[ofs].buffer_length
				  because memory was allocated with ecalloc
				*/
				bind[ofs].buffer_type = MYSQL_TYPE_NULL;
				bind[ofs].is_null = &stmt->result.is_null[ofs];
				break;

			case MYSQL_TYPE_SHORT:
			case MYSQL_TYPE_TINY:
			case MYSQL_TYPE_LONG:
			case MYSQL_TYPE_INT24:
			case MYSQL_TYPE_YEAR:
				stmt->result.buf[ofs].type = IS_LONG;
				/* don't set stmt->result.buf[ofs].buflen to 0, we used ecalloc */
				stmt->result.buf[ofs].val = (char *)emalloc(sizeof(int));
				bind[ofs].buffer_type = MYSQL_TYPE_LONG;
				bind[ofs].buffer = stmt->result.buf[ofs].val;
				bind[ofs].is_null = &stmt->result.is_null[ofs];
				bind[ofs].is_unsigned = (stmt->stmt->fields[ofs].flags & UNSIGNED_FLAG) ? 1 : 0;
				break;

			case MYSQL_TYPE_LONGLONG:
			case MYSQL_TYPE_BIT:
				stmt->result.buf[ofs].type = IS_STRING;
				stmt->result.buf[ofs].buflen = sizeof(my_ulonglong);
				stmt->result.buf[ofs].val = (char *)emalloc(stmt->result.buf[ofs].buflen);
				bind[ofs].buffer_type = col_type;
				bind[ofs].buffer = stmt->result.buf[ofs].val;
				bind[ofs].is_null = &stmt->result.is_null[ofs];
				bind[ofs].buffer_length = stmt->result.buf[ofs].buflen;
				bind[ofs].is_unsigned = (stmt->stmt->fields[ofs].flags & UNSIGNED_FLAG) ? 1 : 0;
				bind[ofs].length = &stmt->result.buf[ofs].output_len;
				break;

			case MYSQL_TYPE_DATE:
			case MYSQL_TYPE_TIME:
			case MYSQL_TYPE_DATETIME:
			case MYSQL_TYPE_NEWDATE:
			case MYSQL_TYPE_VAR_STRING:
			case MYSQL_TYPE_STRING:
			case MYSQL_TYPE_TINY_BLOB:
			case MYSQL_TYPE_BLOB:
			case MYSQL_TYPE_MEDIUM_BLOB:
			case MYSQL_TYPE_LONG_BLOB:
			case MYSQL_TYPE_TIMESTAMP:
			case MYSQL_TYPE_DECIMAL:
			case MYSQL_TYPE_GEOMETRY:
#ifdef FIELD_TYPE_NEWDECIMAL
			case MYSQL_TYPE_NEWDECIMAL:
#endif
			{
#if MYSQL_VERSION_ID >= 50107
				/* Changed to my_bool in MySQL 5.1. See MySQL Bug #16144 */
				my_bool tmp;
#else
				zend_ulong tmp = 0;
#endif
				stmt->result.buf[ofs].type = IS_STRING;
				/*
					If the user has called $stmt->store_result() then we have asked
					max_length to be updated. this is done only for BLOBS because we don't want to allocate
					big chunkgs of memory 2^16 or 2^24
				*/
				if (stmt->stmt->fields[ofs].max_length == 0 &&
					!mysql_stmt_attr_get(stmt->stmt, STMT_ATTR_UPDATE_MAX_LENGTH, &tmp) && !tmp)
				{
					/*
					  Allocate directly 256 because it's easier to allocate a bit more
					  than update max length even for text columns. Try SELECT UNION SELECT UNION with
					  different lengths and you will see that we get different lengths in stmt->stmt->fields[ofs].length
					  The just take 256 and saves us from realloc-ing.
					*/
					stmt->result.buf[ofs].buflen =
						(stmt->stmt->fields) ? (stmt->stmt->fields[ofs].length) ? stmt->stmt->fields[ofs].length + 1: 256: 256;

				} else {
					/*
						the user has called store_result(). if he does not there is no way to determine the
						libmysql does not allow us to allocate 0 bytes for a buffer so we try 1
					*/
					if (!(stmt->result.buf[ofs].buflen = stmt->stmt->fields[ofs].max_length))
						++stmt->result.buf[ofs].buflen;
				}
				stmt->result.buf[ofs].val = (char *)emalloc(stmt->result.buf[ofs].buflen);
				bind[ofs].buffer_type = MYSQL_TYPE_STRING;
				bind[ofs].buffer = stmt->result.buf[ofs].val;
				bind[ofs].is_null = &stmt->result.is_null[ofs];
				bind[ofs].buffer_length = stmt->result.buf[ofs].buflen;
				bind[ofs].length = &stmt->result.buf[ofs].output_len;
				break;
			}
			default:
				php_error_docref(NULL, E_WARNING, "Server returned unknown type %ld. Probably your client library is incompatible with the server version you use!", col_type);
				break;
		}
	}

	rc = mysql_stmt_bind_result(stmt->stmt, bind);
	MYSQLI_REPORT_STMT_ERROR(stmt->stmt);

	if (rc) {
		/* don't close the statement or subsequent usage (for example ->execute()) will lead to crash */
		for (i=0; i < var_cnt ; i++) {
			if (stmt->result.buf[i].val) {
				efree(stmt->result.buf[i].val);
			}
		}
		/* Don't free stmt->result.is_null because is_null & buf are one block of memory  */
		efree(stmt->result.buf);
	} else {
		stmt->result.var_cnt = var_cnt;
		stmt->result.vars = safe_emalloc((var_cnt), sizeof(zval), 0);
		for (i = 0; i < var_cnt; i++) {
			ZVAL_COPY(&stmt->result.vars[i], &args[i]);
		}
	}
	efree(bind);

	return rc;
}
#else
static int
mysqli_stmt_bind_result_do_bind(MY_STMT *stmt, zval *args, unsigned int argc)
{
	unsigned int i;
	MYSQLND_RESULT_BIND *params = mysqlnd_stmt_alloc_result_bind(stmt->stmt);
	if (params) {
		for (i = 0; i < argc; i++) {
			ZVAL_COPY_VALUE(&params[i].zv, &args[i]);
		}
		return mysqlnd_stmt_bind_result(stmt->stmt, params);
	}
	return FAIL;
}
#endif
/* }}} */

/* {{{ proto bool mysqli_stmt_bind_result(object stmt, mixed var [,mixed ...])
   Bind variables to a prepared statement for result storage */
PHP_FUNCTION(mysqli_stmt_bind_result)
{
	zval		*args;
	int			argc;
	zend_ulong		rc;
	MY_STMT		*stmt;
	zval		*mysql_stmt;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O+", &mysql_stmt, mysqli_stmt_class_entry, &args, &argc) == FAILURE) {
		RETURN_THROWS();
	}

	MYSQLI_FETCH_RESOURCE_STMT(stmt, mysql_stmt, MYSQLI_STATUS_VALID);

	if ((uint32_t)argc != mysql_stmt_field_count(stmt->stmt)) {
		php_error_docref(NULL, E_WARNING, "Number of bind variables doesn't match number of fields in prepared statement");
		RETURN_FALSE;
	}

	rc = mysqli_stmt_bind_result_do_bind(stmt, args, argc);
	RETURN_BOOL(!rc);
}
/* }}} */

/* {{{ proto bool mysqli_change_user(object link, string user, string password, string database)
   Change logged-in user of the active connection */
PHP_FUNCTION(mysqli_change_user)
{
	MY_MYSQL	*mysql;
	zval		*mysql_link = NULL;
	char		*user, *password, *dbname;
	size_t			user_len, password_len, dbname_len;
	zend_ulong		rc;
#if !defined(MYSQLI_USE_MYSQLND)
	const		CHARSET_INFO * old_charset;
#endif

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Osss!", &mysql_link, mysqli_link_class_entry, &user, &user_len, &password, &password_len, &dbname, &dbname_len) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

#if !defined(MYSQLI_USE_MYSQLND)
	old_charset = mysql->mysql->charset;
#endif

#if defined(MYSQLI_USE_MYSQLND)
	rc = mysqlnd_change_user_ex(mysql->mysql, user, password, dbname, FALSE, (size_t) password_len);
#else
	rc = mysql_change_user(mysql->mysql, user, password, dbname);
#endif
	MYSQLI_REPORT_MYSQL_ERROR(mysql->mysql);

	if (rc) {
		RETURN_FALSE;
	}
#if !defined(MYSQLI_USE_MYSQLND)
	if (mysql_get_server_version(mysql->mysql) < 50123L) {
		/*
		  Request the current charset, or it will be reset to the system one.
		  5.0 doesn't support it. Support added in 5.1.23 by fixing the following bug :
		  Bug #30472 libmysql doesn't reset charset, insert_id after succ. mysql_change_user() call
		*/
		rc = mysql_set_character_set(mysql->mysql, old_charset->csname);
	}
#endif

	RETURN_TRUE;
}
/* }}} */

/* {{{ proto string mysqli_character_set_name(object link)
   Returns the name of the character set used for this connection */
PHP_FUNCTION(mysqli_character_set_name)
{
	MY_MYSQL	*mysql;
	zval		*mysql_link;
	const char	*cs_name;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
		RETURN_THROWS();
	}

	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);
	cs_name = mysql_character_set_name(mysql->mysql);
	if (cs_name) {
		RETURN_STRING(cs_name);
	}
}
/* }}} */

/* {{{ php_mysqli_close */
void php_mysqli_close(MY_MYSQL * mysql, int close_type, int resource_status)
{
	if (resource_status > MYSQLI_STATUS_INITIALIZED) {
		MyG(num_links)--;
	}

	if (!mysql->persistent) {
		mysqli_close(mysql->mysql, close_type);
	} else {
		zend_resource *le;
		if ((le = zend_hash_find_ptr(&EG(persistent_list), mysql->hash_key)) != NULL) {
			if (le->type == php_le_pmysqli()) {
				mysqli_plist_entry *plist = (mysqli_plist_entry *) le->ptr;
#if defined(MYSQLI_USE_MYSQLND)
				mysqlnd_end_psession(mysql->mysql);
#endif

				if (MyG(rollback_on_cached_plink) &&
#if !defined(MYSQLI_USE_MYSQLND)
					mysqli_commit_or_rollback_libmysql(mysql->mysql, FALSE, TRANS_COR_NO_OPT, NULL))
#else
					FAIL == mysqlnd_rollback(mysql->mysql, TRANS_COR_NO_OPT, NULL))
#endif
				{
					mysqli_close(mysql->mysql, close_type);
				} else {
					zend_ptr_stack_push(&plist->free_links, mysql->mysql);
					MyG(num_inactive_persistent)++;
				}
				MyG(num_active_persistent)--;
			}
		}
		mysql->persistent = FALSE;
	}
	mysql->mysql = NULL;

	php_clear_mysql(mysql);
}
/* }}} */

/* {{{ proto bool mysqli_close(object link)
   Close connection */
PHP_FUNCTION(mysqli_close)
{
	zval		*mysql_link;
	MY_MYSQL	*mysql;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
		RETURN_THROWS();
	}

	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_INITIALIZED);

	php_mysqli_close(mysql, MYSQLI_CLOSE_EXPLICIT, ((MYSQLI_RESOURCE *)(Z_MYSQLI_P(mysql_link))->ptr)->status);
	((MYSQLI_RESOURCE *)(Z_MYSQLI_P(mysql_link))->ptr)->status = MYSQLI_STATUS_UNKNOWN;

	MYSQLI_CLEAR_RESOURCE(mysql_link);
	efree(mysql);
	RETURN_TRUE;
}
/* }}} */

/* {{{ proto bool mysqli_commit(object link[, int flags [, string name ]])
   Commit outstanding actions and close transaction */
PHP_FUNCTION(mysqli_commit)
{
	MY_MYSQL	*mysql;
	zval		*mysql_link;
	zend_long		flags = TRANS_COR_NO_OPT;
	char *		name = NULL;
	size_t			name_len;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O|ls!", &mysql_link, mysqli_link_class_entry, &flags, &name, &name_len) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

#if !defined(MYSQLI_USE_MYSQLND)
	if (mysqli_commit_or_rollback_libmysql(mysql->mysql, TRUE, flags, name)) {
#else
	if (FAIL == mysqlnd_commit(mysql->mysql, flags, name)) {
#endif
		RETURN_FALSE;
	}
	RETURN_TRUE;
}
/* }}} */

/* {{{ proto bool mysqli_data_seek(object result, int offset)
   Move internal result pointer */
PHP_FUNCTION(mysqli_data_seek)
{
	MYSQL_RES	*result;
	zval		*mysql_result;
	zend_long		offset;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Ol", &mysql_result, mysqli_result_class_entry, &offset) == FAILURE) {
		RETURN_THROWS();
	}

	MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);

	if (mysqli_result_is_unbuffered(result)) {
		php_error_docref(NULL, E_WARNING, "Function cannot be used with MYSQL_USE_RESULT");
		RETURN_FALSE;
	}

	if (offset < 0 || (uint64_t)offset >= mysql_num_rows(result)) {
		RETURN_FALSE;
	}

	mysql_data_seek(result, offset);
	RETURN_TRUE;
}
/* }}} */

/* {{{ proto bool mysqli_debug(string debug)
*/
PHP_FUNCTION(mysqli_debug)
{
	char	*debug;
	size_t		debug_len;

	if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &debug, &debug_len) == FAILURE) {
		RETURN_THROWS();
	}

	mysql_debug(debug);
	RETURN_TRUE;
}
/* }}} */

/* {{{ proto bool mysqli_dump_debug_info(object link)
*/
PHP_FUNCTION(mysqli_dump_debug_info)
{
	MY_MYSQL	*mysql;
	zval		*mysql_link;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

	RETURN_BOOL(!mysql_dump_debug_info(mysql->mysql));
}
/* }}} */

/* {{{ proto int mysqli_errno(object link)
   Returns the numerical value of the error message from previous MySQL operation */
PHP_FUNCTION(mysqli_errno)
{
	MY_MYSQL	*mysql;
	zval		*mysql_link;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);
	RETURN_LONG(mysql_errno(mysql->mysql));
}
/* }}} */

/* {{{ proto string mysqli_error(object link)
   Returns the text of the error message from previous MySQL operation */
PHP_FUNCTION(mysqli_error)
{
	MY_MYSQL	*mysql;
	zval		*mysql_link;
	const char	*err;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);
	err = mysql_error(mysql->mysql);
	if (err) {
		RETURN_STRING(err);
	}
}
/* }}} */

/* {{{ proto bool mysqli_stmt_execute(object stmt)
   Execute a prepared statement */
PHP_FUNCTION(mysqli_stmt_execute)
{
	MY_STMT		*stmt;
	zval		*mysql_stmt;
#ifndef MYSQLI_USE_MYSQLND
	unsigned int	i;
#endif

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_stmt, mysqli_stmt_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_STMT(stmt, mysql_stmt, MYSQLI_STATUS_VALID);

#ifndef MYSQLI_USE_MYSQLND
	if (stmt->param.var_cnt) {
		int j;
		for (i = 0; i < stmt->param.var_cnt; i++) {
			if (!Z_ISREF(stmt->param.vars[i])) {
				continue;
			}
			for (j = i + 1; j < stmt->param.var_cnt; j++) {
				/* Oops, someone binding the same variable - clone */
				if (Z_ISREF(stmt->param.vars[j]) &&
					   	Z_REFVAL(stmt->param.vars[j]) == Z_REFVAL(stmt->param.vars[i])) {
					/*SEPARATE_ZVAL(&stmt->param.vars[j]);*/
					Z_DELREF_P(&stmt->param.vars[j]);
					ZVAL_COPY(&stmt->param.vars[j], Z_REFVAL(stmt->param.vars[j]));
					break;
				}
			}
		}
	}
	for (i = 0; i < stmt->param.var_cnt; i++) {
		if (!Z_ISUNDEF(stmt->param.vars[i])) {
			zval *param;
			if (Z_ISREF(stmt->param.vars[i])) {
				param = Z_REFVAL(stmt->param.vars[i]);
			} else {
				param = &stmt->param.vars[i];
			}
			if (!(stmt->param.is_null[i] = (Z_ISNULL_P(param)))) {
				switch (stmt->stmt->params[i].buffer_type) {
					case MYSQL_TYPE_VAR_STRING:
						if (!try_convert_to_string(param)) {
							RETURN_THROWS();
						}

						stmt->stmt->params[i].buffer = Z_STRVAL_P(param);
						stmt->stmt->params[i].buffer_length = Z_STRLEN_P(param);
						break;
					case MYSQL_TYPE_DOUBLE:
						convert_to_double_ex(param);
						stmt->stmt->params[i].buffer = &Z_DVAL_P(param);
						break;
					case MYSQL_TYPE_LONGLONG:
					case MYSQL_TYPE_LONG:
						convert_to_long_ex(param);
						stmt->stmt->params[i].buffer = &Z_LVAL_P(param);
						break;
					default:
						break;
				}
			}
		}
	}
#endif

	if (mysql_stmt_execute(stmt->stmt)) {
		MYSQLI_REPORT_STMT_ERROR(stmt->stmt);
		RETVAL_FALSE;
	} else {
		RETVAL_TRUE;
	}

	if (MyG(report_mode) & MYSQLI_REPORT_INDEX) {
		php_mysqli_report_index(stmt->query, mysqli_stmt_server_status(stmt->stmt));
	}
}
/* }}} */

#ifndef MYSQLI_USE_MYSQLND
/* {{{ void mysqli_stmt_fetch_libmysql
   Fetch results from a prepared statement into the bound variables */
void mysqli_stmt_fetch_libmysql(INTERNAL_FUNCTION_PARAMETERS)
{
	MY_STMT		*stmt;
	zval			*mysql_stmt;
	unsigned int	i;
	zend_ulong			ret;
	unsigned int	uval;
	my_ulonglong	llval;


	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_stmt, mysqli_stmt_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_STMT(stmt, mysql_stmt, MYSQLI_STATUS_VALID);

	/* reset buffers */
	for (i = 0; i < stmt->result.var_cnt; i++) {
		if (stmt->result.buf[i].type == IS_STRING) {
			memset(stmt->result.buf[i].val, 0, stmt->result.buf[i].buflen);
		}
	}
	ret = mysql_stmt_fetch(stmt->stmt);
#ifdef MYSQL_DATA_TRUNCATED
	if (!ret || ret == MYSQL_DATA_TRUNCATED) {
#else
	if (!ret) {
#endif
		for (i = 0; i < stmt->result.var_cnt; i++) {
			zval *result;
			/* it must be a reference, isn't it? */
			if (Z_ISREF(stmt->result.vars[i])) {
				result = &stmt->result.vars[i];
			} else {
				continue; // but be safe ...
			}
			/* Even if the string is of length zero there is one byte alloced so efree() in all cases */
			if (!stmt->result.is_null[i]) {
				switch (stmt->result.buf[i].type) {
					case IS_LONG:
						if ((stmt->stmt->fields[i].type == MYSQL_TYPE_LONG)
						    && (stmt->stmt->fields[i].flags & UNSIGNED_FLAG))
						{
							/* unsigned int (11) */
							uval= *(unsigned int *) stmt->result.buf[i].val;
#if SIZEOF_ZEND_LONG==4
							if (uval > INT_MAX) {
								char *tmp, *p;
								int j = 10;
								tmp = emalloc(11);
								p= &tmp[9];
								do {
									*p-- = (uval % 10) + 48;
									uval = uval / 10;
								} while (--j > 0);
								tmp[10]= '\0';
								/* unsigned int > INT_MAX is 10 digits - ALWAYS */
								ZEND_TRY_ASSIGN_REF_STRINGL(result, tmp, 10);
								efree(tmp);
								break;
							}
#endif
						}
						if (stmt->stmt->fields[i].flags & UNSIGNED_FLAG) {
							ZEND_TRY_ASSIGN_REF_LONG(result, *(unsigned int *)stmt->result.buf[i].val);
						} else {
							ZEND_TRY_ASSIGN_REF_LONG(result, *(int *)stmt->result.buf[i].val);
						}
						break;
					case IS_DOUBLE:
					{
						double dval;
						if (stmt->stmt->bind[i].buffer_type == MYSQL_TYPE_FLOAT) {
#ifndef NOT_FIXED_DEC
# define NOT_FIXED_DEC 31
#endif
							dval = mysql_float_to_double(*(float *)stmt->result.buf[i].val,
										(stmt->stmt->fields[i].decimals >= NOT_FIXED_DEC) ? -1 :
										stmt->stmt->fields[i].decimals);
						} else {
							dval = *((double *)stmt->result.buf[i].val);
						}

						ZEND_TRY_ASSIGN_REF_DOUBLE(result, dval);
						break;
					}
					case IS_STRING:
						if (stmt->stmt->bind[i].buffer_type == MYSQL_TYPE_LONGLONG
						 || stmt->stmt->bind[i].buffer_type == MYSQL_TYPE_BIT
						 ) {
							my_bool uns = (stmt->stmt->fields[i].flags & UNSIGNED_FLAG)? 1:0;
							if (stmt->stmt->bind[i].buffer_type == MYSQL_TYPE_BIT) {
								switch (stmt->result.buf[i].output_len) {
									case 8:llval = (my_ulonglong)  bit_uint8korr(stmt->result.buf[i].val);break;
									case 7:llval = (my_ulonglong)  bit_uint7korr(stmt->result.buf[i].val);break;
									case 6:llval = (my_ulonglong)  bit_uint6korr(stmt->result.buf[i].val);break;
									case 5:llval = (my_ulonglong)  bit_uint5korr(stmt->result.buf[i].val);break;
									case 4:llval = (my_ulonglong)  bit_uint4korr(stmt->result.buf[i].val);break;
									case 3:llval = (my_ulonglong)  bit_uint3korr(stmt->result.buf[i].val);break;
									case 2:llval = (my_ulonglong)  bit_uint2korr(stmt->result.buf[i].val);break;
									case 1:llval = (my_ulonglong)  uint1korr(stmt->result.buf[i].val);break;
								}
							} else {
								llval= *(my_ulonglong *) stmt->result.buf[i].val;
							}
#if SIZEOF_ZEND_LONG==8
							if (uns && llval > 9223372036854775807L) {
#elif SIZEOF_ZEND_LONG==4
							if ((uns && llval > L64(2147483647)) ||
								(!uns && (( L64(2147483647) < (my_longlong) llval) ||
								(L64(-2147483648) > (my_longlong) llval))))
							{
#endif
								char tmp[22];
								/* even though lval is declared as unsigned, the value
								 * may be negative. Therefor we cannot use MYSQLI_LLU_SPEC and must
								 * use MYSQLI_LL_SPEC.
								 */
								snprintf(tmp, sizeof(tmp), (stmt->stmt->fields[i].flags & UNSIGNED_FLAG)? MYSQLI_LLU_SPEC : MYSQLI_LL_SPEC, llval);
								ZEND_TRY_ASSIGN_REF_STRING(result, tmp);
							} else {
								ZEND_TRY_ASSIGN_REF_LONG(result, llval);
							}
						} else {
							if (ret == MYSQL_DATA_TRUNCATED && *(stmt->stmt->bind[i].error) != 0) {
								/* result was truncated */
								ZEND_TRY_ASSIGN_REF_STRINGL(result, stmt->result.buf[i].val, stmt->stmt->bind[i].buffer_length);
							} else {
								ZEND_TRY_ASSIGN_REF_STRINGL(result, stmt->result.buf[i].val, stmt->result.buf[i].output_len);
							}
						}
						break;
					default:
						break;
				}
			} else {
				ZEND_TRY_ASSIGN_REF_NULL(result);
			}
		}
	} else {
		MYSQLI_REPORT_STMT_ERROR(stmt->stmt);
	}

	switch (ret) {
		case 0:
#ifdef MYSQL_DATA_TRUNCATED
		/* according to SQL standard truncation (e.g. loss of precision is
		   not an error) - for detecting possible truncation you have to
		   check mysqli_stmt_warning
		*/
		case MYSQL_DATA_TRUNCATED:
#endif
			RETURN_TRUE;
		break;
		case 1:
			RETURN_FALSE;
		break;
		default:
			RETURN_NULL();
		break;
	}
}
/* }}} */
#else
/* {{{ mixed mysqli_stmt_fetch_mysqlnd */
void mysqli_stmt_fetch_mysqlnd(INTERNAL_FUNCTION_PARAMETERS)
{
	MY_STMT		*stmt;
	zval		*mysql_stmt;
	zend_bool	fetched_anything;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_stmt, mysqli_stmt_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_STMT(stmt, mysql_stmt, MYSQLI_STATUS_VALID);

	if (FAIL  == mysqlnd_stmt_fetch(stmt->stmt, &fetched_anything)) {
		RETURN_BOOL(FALSE);
	} else if (fetched_anything == TRUE) {
		RETURN_BOOL(TRUE);
	} else {
		RETURN_NULL();
	}
}
#endif
/* }}} */

/* {{{ proto mixed mysqli_stmt_fetch(object stmt)
   Fetch results from a prepared statement into the bound variables */
PHP_FUNCTION(mysqli_stmt_fetch)
{
#if !defined(MYSQLI_USE_MYSQLND)
	mysqli_stmt_fetch_libmysql(INTERNAL_FUNCTION_PARAM_PASSTHRU);
#else
	mysqli_stmt_fetch_mysqlnd(INTERNAL_FUNCTION_PARAM_PASSTHRU);
#endif
}
/* }}} */

/* {{{  php_add_field_properties */
static void php_add_field_properties(zval *value, const MYSQL_FIELD *field)
{
#ifdef MYSQLI_USE_MYSQLND
	add_property_str(value, "name", zend_string_copy(field->sname));
#else
	add_property_stringl(value, "name",(field->name ? field->name : ""), field->name_length);
#endif

	add_property_stringl(value, "orgname", (field->org_name ? field->org_name : ""), field->org_name_length);
	add_property_stringl(value, "table", (field->table ? field->table : ""), field->table_length);
	add_property_stringl(value, "orgtable", (field->org_table ? field->org_table : ""), field->org_table_length);
	add_property_stringl(value, "def", (field->def ? field->def : ""), field->def_length);
	add_property_stringl(value, "db", (field->db ? field->db : ""), field->db_length);

	/* FIXME: manually set the catalog to "def" due to bug in
	 * libmysqlclient which does not initialize field->catalog
	 * and in addition, the catalog is always be "def"
	 */
	add_property_string(value, "catalog", "def");

	add_property_long(value, "max_length", field->max_length);
	add_property_long(value, "length", field->length);
	add_property_long(value, "charsetnr", field->charsetnr);
	add_property_long(value, "flags", field->flags);
	add_property_long(value, "type", field->type);
	add_property_long(value, "decimals", field->decimals);
}
/* }}} */

/* {{{ proto mixed mysqli_fetch_field(object result)
   Get column information from a result and return as an object */
PHP_FUNCTION(mysqli_fetch_field)
{
	MYSQL_RES	*result;
	zval		*mysql_result;
	const MYSQL_FIELD	*field;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_result, mysqli_result_class_entry) == FAILURE) {
		RETURN_THROWS();
	}

	MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);

	if (!(field = mysql_fetch_field(result))) {
		RETURN_FALSE;
	}

	object_init(return_value);
	php_add_field_properties(return_value, field);
}
/* }}} */

/* {{{ proto mixed mysqli_fetch_fields(object result)
   Return array of objects containing field meta-data */
PHP_FUNCTION(mysqli_fetch_fields)
{
	MYSQL_RES	*result;
	zval		*mysql_result;
	zval		obj;

	unsigned int i, num_fields;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_result, mysqli_result_class_entry) == FAILURE) {
		RETURN_THROWS();
	}

	MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);

	array_init(return_value);
	num_fields = mysql_num_fields(result);

	for (i = 0; i < num_fields; i++) {
		const MYSQL_FIELD *field = mysql_fetch_field_direct(result, i);

		object_init(&obj);

		php_add_field_properties(&obj, field);
		add_index_zval(return_value, i, &obj);
	}
}
/* }}} */

/* {{{ proto mixed mysqli_fetch_field_direct(object result, int offset)
   Fetch meta-data for a single field */
PHP_FUNCTION(mysqli_fetch_field_direct)
{
	MYSQL_RES	*result;
	zval		*mysql_result;
	const MYSQL_FIELD	*field;
	zend_long		offset;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Ol", &mysql_result, mysqli_result_class_entry, &offset) == FAILURE) {
		RETURN_THROWS();
	}

	MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);

	if (offset < 0 || offset >= (zend_long) mysql_num_fields(result)) {
		php_error_docref(NULL, E_WARNING, "Field offset is invalid for resultset");
		RETURN_FALSE;
	}

	if (!(field = mysql_fetch_field_direct(result,offset))) {
		RETURN_FALSE;
	}

	object_init(return_value);
	php_add_field_properties(return_value, field);
}
/* }}} */

/* {{{ proto mixed mysqli_fetch_lengths(object result)
   Get the length of each output in a result */
PHP_FUNCTION(mysqli_fetch_lengths)
{
	MYSQL_RES		*result;
	zval			*mysql_result;
	unsigned int	i, num_fields;
#if defined(MYSQLI_USE_MYSQLND)
	const size_t	*ret;
#else
	const zend_ulong *ret;
#endif

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_result, mysqli_result_class_entry) == FAILURE) {
		RETURN_THROWS();
	}

	MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);

	if (!(ret = mysql_fetch_lengths(result))) {
		RETURN_FALSE;
	}

	array_init(return_value);
	num_fields = mysql_num_fields(result);

	for (i = 0; i < num_fields; i++) {
		add_index_long(return_value, i, ret[i]);
	}
}
/* }}} */

/* {{{ proto array mysqli_fetch_row(object result)
   Get a result row as an enumerated array */
PHP_FUNCTION(mysqli_fetch_row)
{
	php_mysqli_fetch_into_hash(INTERNAL_FUNCTION_PARAM_PASSTHRU, MYSQLI_NUM, 0);
}
/* }}} */

/* {{{ proto int mysqli_field_count(object link)
   Fetch the number of fields returned by the last query for the given link
*/
PHP_FUNCTION(mysqli_field_count)
{
	MY_MYSQL	*mysql;
	zval		*mysql_link;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

	RETURN_LONG(mysql_field_count(mysql->mysql));
}
/* }}} */

/* {{{ proto int mysqli_field_seek(object result, int fieldnr)
   Set result pointer to a specified field offset
*/
PHP_FUNCTION(mysqli_field_seek)
{
	MYSQL_RES		*result;
	zval			*mysql_result;
	zend_long	fieldnr;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Ol", &mysql_result, mysqli_result_class_entry, &fieldnr) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);

	if (fieldnr < 0 || (uint32_t)fieldnr >= mysql_num_fields(result)) {
		php_error_docref(NULL, E_WARNING, "Invalid field offset");
		RETURN_FALSE;
	}

	mysql_field_seek(result, fieldnr);
	RETURN_TRUE;
}
/* }}} */

/* {{{ proto int mysqli_field_tell(object result)
   Get current field offset of result pointer */
PHP_FUNCTION(mysqli_field_tell)
{
	MYSQL_RES	*result;
	zval		*mysql_result;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_result, mysqli_result_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);

	RETURN_LONG(mysql_field_tell(result));
}
/* }}} */

/* {{{ proto void mysqli_free_result(object result)
   Free query result memory for the given result handle */
PHP_FUNCTION(mysqli_free_result)
{
	MYSQL_RES	*result;
	zval		*mysql_result;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_result, mysqli_result_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);

	mysqli_free_result(result, FALSE);
	MYSQLI_CLEAR_RESOURCE(mysql_result);
}
/* }}} */

/* {{{ proto string mysqli_get_client_info(void)
   Get MySQL client info */
PHP_FUNCTION(mysqli_get_client_info)
{
	if (getThis()) {
		if (zend_parse_parameters_none() == FAILURE) {
			RETURN_THROWS();
		}
	} else {
		zval *mysql_link;

		if (zend_parse_parameters(ZEND_NUM_ARGS(), "|O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
			RETURN_THROWS();
		}
	}

	const char * info = mysql_get_client_info();
	if (info) {
		RETURN_STRING(info);
	}
}
/* }}} */

/* {{{ proto int mysqli_get_client_version(void)
   Get MySQL client info */
PHP_FUNCTION(mysqli_get_client_version)
{
	if (zend_parse_parameters_none() == FAILURE) {
		RETURN_THROWS();
	}

	RETURN_LONG((zend_long)mysql_get_client_version());
}
/* }}} */

/* {{{ proto string mysqli_get_host_info(object link)
   Get MySQL host info */
PHP_FUNCTION(mysqli_get_host_info)
{
	MY_MYSQL	*mysql;
	zval		*mysql_link = NULL;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);
#if !defined(MYSQLI_USE_MYSQLND)
	RETURN_STRING((mysql->mysql->host_info) ? mysql->mysql->host_info : "");
#else
	RETURN_STRING((mysql->mysql->data->host_info) ? mysql->mysql->data->host_info : "");
#endif
}
/* }}} */

/* {{{ proto int mysqli_get_proto_info(object link)
   Get MySQL protocol information */
PHP_FUNCTION(mysqli_get_proto_info)
{
	MY_MYSQL	*mysql;
	zval		*mysql_link = NULL;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);
	RETURN_LONG(mysql_get_proto_info(mysql->mysql));
}
/* }}} */

/* {{{ proto string mysqli_get_server_info(object link)
   Get MySQL server info */
PHP_FUNCTION(mysqli_get_server_info)
{
	MY_MYSQL	*mysql;
	zval		*mysql_link = NULL;
	const char	*info;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

	info = mysql_get_server_info(mysql->mysql);
	if (info) {
		RETURN_STRING(info);
	}
}
/* }}} */

/* {{{ proto int mysqli_get_server_version(object link)
   Return the MySQL version for the server referenced by the given link */
PHP_FUNCTION(mysqli_get_server_version)
{
	MY_MYSQL	*mysql;
	zval		*mysql_link = NULL;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

	RETURN_LONG(mysql_get_server_version(mysql->mysql));
}
/* }}} */

/* {{{ proto string mysqli_info(object link)
   Get information about the most recent query */
PHP_FUNCTION(mysqli_info)
{
	MY_MYSQL	*mysql;
	zval		*mysql_link = NULL;
	const char	*info;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

	info = mysql_info(mysql->mysql);
	if (info) {
		RETURN_STRING(info);
	}
}
/* }}} */

/* {{{ php_mysqli_init() */
void php_mysqli_init(INTERNAL_FUNCTION_PARAMETERS, zend_bool is_method)
{
	MYSQLI_RESOURCE *mysqli_resource;
	MY_MYSQL *mysql;

	if (zend_parse_parameters_none() == FAILURE) {
		RETURN_THROWS();
	}

	if (is_method && (Z_MYSQLI_P(getThis()))->ptr) {
		return;
	}

	mysql = (MY_MYSQL *)ecalloc(1, sizeof(MY_MYSQL));

#if !defined(MYSQLI_USE_MYSQLND)
	if (!(mysql->mysql = mysql_init(NULL)))
#else
	/*
	  We create always persistent, as if the user want to connect
	  to p:somehost, we can't convert the handle then
	*/
	if (!(mysql->mysql = mysqlnd_init(MYSQLND_CLIENT_KNOWS_RSET_COPY_DATA, TRUE)))
#endif
	{
		efree(mysql);
		RETURN_FALSE;
	}

	mysqli_resource = (MYSQLI_RESOURCE *)ecalloc (1, sizeof(MYSQLI_RESOURCE));
	mysqli_resource->ptr = (void *)mysql;
	mysqli_resource->status = MYSQLI_STATUS_INITIALIZED;

	if (!is_method) {
		MYSQLI_RETURN_RESOURCE(mysqli_resource, mysqli_link_class_entry);
	} else {
		(Z_MYSQLI_P(getThis()))->ptr = mysqli_resource;
	}
}
/* }}} */

/* {{{ proto resource mysqli_init(void)
   Initialize mysqli and return a resource for use with mysql_real_connect */
PHP_FUNCTION(mysqli_init)
{
	php_mysqli_init(INTERNAL_FUNCTION_PARAM_PASSTHRU, FALSE);
}
/* }}} */

/* {{{ proto resource mysqli::init(void)
   Initialize mysqli and return a resource for use with mysql_real_connect */
PHP_FUNCTION(mysqli_init_method)
{
	php_mysqli_init(INTERNAL_FUNCTION_PARAM_PASSTHRU, TRUE);
}
/* }}} */

/* {{{ proto mixed mysqli_insert_id(object link)
   Get the ID generated from the previous INSERT operation */
PHP_FUNCTION(mysqli_insert_id)
{
	MY_MYSQL		*mysql;
	my_ulonglong	rc;
	zval			*mysql_link;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);
	rc = mysql_insert_id(mysql->mysql);
	MYSQLI_RETURN_LONG_INT(rc)
}
/* }}} */

/* {{{ proto bool mysqli_kill(object link, int processid)
   Kill a mysql process on the server */
PHP_FUNCTION(mysqli_kill)
{
	MY_MYSQL	*mysql;
	zval		*mysql_link;
	zend_long		processid;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Ol", &mysql_link, mysqli_link_class_entry, &processid) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

	if (processid <= 0) {
		php_error_docref(NULL, E_WARNING, "processid should have positive value");
		RETURN_FALSE;
	}

	if (mysql_kill(mysql->mysql, processid)) {
		MYSQLI_REPORT_MYSQL_ERROR(mysql->mysql);
		RETURN_FALSE;
	}
	RETURN_TRUE;
}
/* }}} */

/* {{{ proto bool mysqli_more_results(object link)
   check if there any more query results from a multi query */
PHP_FUNCTION(mysqli_more_results)
{
	MY_MYSQL	*mysql;
	zval		*mysql_link;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

	RETURN_BOOL(mysql_more_results(mysql->mysql));
}
/* }}} */

/* {{{ proto bool mysqli_next_result(object link)
   read next result from multi_query */
PHP_FUNCTION(mysqli_next_result) {
	MY_MYSQL	*mysql;
	zval		*mysql_link;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

	RETURN_BOOL(!mysql_next_result(mysql->mysql));
}
/* }}} */

#if defined(HAVE_STMT_NEXT_RESULT) && defined(MYSQLI_USE_MYSQLND)
/* {{{ proto bool mysqli_stmt_more_results(object link)
   check if there any more query results from a multi query */
PHP_FUNCTION(mysqli_stmt_more_results)
{
	MY_STMT		*stmt;
	zval		*mysql_stmt;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_stmt, mysqli_stmt_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_STMT(stmt, mysql_stmt, MYSQLI_STATUS_VALID);

	RETURN_BOOL(mysqlnd_stmt_more_results(stmt->stmt));
}
/* }}} */

/* {{{ proto bool mysqli_stmt_next_result(object link)
   read next result from multi_query */
PHP_FUNCTION(mysqli_stmt_next_result) {
	MY_STMT		*stmt;
	zval		*mysql_stmt;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_stmt, mysqli_stmt_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE_STMT(stmt, mysql_stmt, MYSQLI_STATUS_VALID);

	RETURN_BOOL(!mysql_stmt_next_result(stmt->stmt));
}
/* }}} */
#endif

/* {{{ proto int mysqli_num_fields(object result)
   Get number of fields in result */
PHP_FUNCTION(mysqli_num_fields)
{
	MYSQL_RES	*result;
	zval		*mysql_result;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_result, mysqli_result_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);

	RETURN_LONG(mysql_num_fields(result));
}
/* }}} */

/* {{{ proto mixed mysqli_num_rows(object result)
   Get number of rows in result */
PHP_FUNCTION(mysqli_num_rows)
{
	MYSQL_RES	*result;
	zval		*mysql_result;

	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O", &mysql_result, mysqli_result_class_entry) == FAILURE) {
		RETURN_THROWS();
	}
	MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);

	if (mysqli_result_is_unbuffered_and_not_everything_is_fetched(result)) {
		php_error_docref(NULL, E_WARNING, "Function cannot be used with MYSQL_USE_RESULT");
		RETURN_LONG(0);
	}

	MYSQLI_RETURN_LONG_INT(mysql_num_rows(result));
}
/* }}} */

/* {{{ mysqli_options_get_option_zval_type */
static int mysqli_options_get_option_zval_type(int option)
{
	switch (option) {
#ifdef MYSQLI_USE_MYSQLND
		case MYSQLND_OPT_NET_CMD_BUFFER_SIZE:
		case MYSQLND_OPT_NET_READ_BUFFER_SIZE:
#ifdef MYSQLND_STRING_TO_INT_CONVERSION
		case MYSQLND_OPT_INT_AND_FLOAT_NATIVE:
#endif
#endif /* MYSQLI_USE_MYSQLND */
		case MYSQL_OPT_CONNECT_TIMEOUT:
#ifdef MYSQL_REPORT_DATA_TRUNCATION
		case MYSQL_REPORT_DATA_TRUNCATION:
#endif
		case MYSQL_OPT_LOCAL_INFILE:
		case MYSQL_OPT_NAMED_PIPE:
#ifdef MYSQL_OPT_PROTOCOL
		case MYSQL_OPT_PROTOCOL:
#endif /* MySQL 4.1.0 */
		case MYSQL_OPT_READ_TIMEOUT:
		case MYSQL_OPT_WRITE_TIMEOUT:
		case MYSQL_OPT_GUESS_CONNECTION:
		case MYSQL_OPT_USE_EMBEDDED_CONNECTION:
		case MYSQL_OPT_USE_REMOTE_CONNECTION:
		case MYSQL_SECURE_AUTH:
#ifdef MYSQL_OPT_RECONNECT
		case MYSQL_OPT_RECONNECT:
#endif /* MySQL 5.0.13 */
#ifdef MYSQL_OPT_SSL_VERIFY_SERVER_CERT
		case MYSQL_OPT_SSL_VERIFY_SERVER_CERT:
#endif /* MySQL 5.0.23 */
#ifdef MYSQL_OPT_COMPRESS
		case MYSQL_OPT_COMPRESS:
#endif /* mysqlnd @ PHP 5.3.2 */
#ifdef MYSQL_OPT_SSL_VERIFY_SERVER_CERT
	REGISTER_LONG_CONSTANT("MYSQLI_OPT_SSL_VERIFY_SERVER_CERT", MYSQL_OPT_SSL_VERIFY_SERV…