/code/apps/myop/api/lib/ez_sql_mysql.php
PHP | 270 lines | 150 code | 55 blank | 65 comment | 24 complexity | e4fa883375277a64fd7e21464eb7e8cd MD5 | raw file
Possible License(s): LGPL-2.1
- <?php
- /**********************************************************************
- * Author: Justin Vincent (justin@visunet.ie)
- * Web...: http://php.justinvincent.com
- * Name..: ezSQL_mysql
- * Desc..: mySQL component (part of ezSQL databse abstraction library)
- * Help..: http://justinvincent.com/docs/ezsql/ez_sql_help.htm
- */
- /**********************************************************************
- * ezSQL error strings - mySQL
- */
- $ezsql_mysql_str = array
- (
- 1 => 'Require $dbuser and $dbpassword to connect to a database server',
- 2 => 'Error establishing mySQL database connection. Correct user/password? Correct hostname? Database server running?',
- 3 => 'Require $dbname to select a database',
- 4 => 'mySQL database connection is not active',
- 5 => 'Unexpected error while trying to select database'
- );
- /**********************************************************************
- * ezSQL Database specific class - mySQL
- */
- if ( ! function_exists ('mysql_connect') ) die('<b>Fatal Error:</b> ezSQL_mysql requires mySQL Lib to be compiled and or linked in to the PHP engine');
- if ( ! class_exists ('ezSQLcore') ) die('<b>Fatal Error:</b> ezSQL_mysql requires ezSQLcore (ez_sql_core.php) to be included/loaded before it can be used');
- class ezSQL_mysql extends ezSQLcore
- {
- var $dbuser = false;
- var $dbpassword = false;
- var $dbname = false;
- var $dbhost = false;
- /**********************************************************************
- * Constructor - allow the user to perform a qucik connect at the
- * same time as initialising the ezSQL_mysql class
- */
- function ezSQL_mysql($dbuser='', $dbpassword='', $dbname='', $dbhost='localhost')
- {
- $this->dbuser = $dbuser;
- $this->dbpassword = $dbpassword;
- $this->dbname = $dbname;
- $this->dbhost = $dbhost;
- }
- /**********************************************************************
- * Short hand way to connect to mySQL database server
- * and select a mySQL database at the same time
- */
- function quick_connect($dbuser='', $dbpassword='', $dbname='', $dbhost='localhost')
- {
- $return_val = false;
- if ( ! $this->connect($dbuser, $dbpassword, $dbhost,true) ) ;
- else if ( ! $this->select($dbname) ) ;
- else $return_val = true;
-
- mysql_query('SET NAMES UTF8',$this->dbh);
-
- return $return_val;
- }
- /**********************************************************************
- * Try to connect to mySQL database server
- */
- function connect($dbuser='', $dbpassword='', $dbhost='localhost')
- {
- global $ezsql_mysql_str; $return_val = false;
- // Must have a user and a password
- if ( ! $dbuser )
- {
- $this->register_error($ezsql_mysql_str[1].' in '.__FILE__.' on line '.__LINE__);
- $this->show_errors ? trigger_error($ezsql_mysql_str[1],E_USER_WARNING) : null;
- }
- // Try to establish the server database handle
- else if ( ! $this->dbh = @mysql_connect($dbhost,$dbuser,$dbpassword,true) )
- {
- $this->register_error($ezsql_mysql_str[2].' in '.__FILE__.' on line '.__LINE__);
- $this->show_errors ? trigger_error($ezsql_mysql_str[2],E_USER_WARNING) : null;
- }
- else
- {
- $this->dbuser = $dbuser;
- $this->dbpassword = $dbpassword;
- $this->dbhost = $dbhost;
- $return_val = true;
- }
- mysql_query('SET NAMES UTF8',$this->dbh);
-
- return $return_val;
- }
- /**********************************************************************
- * Try to select a mySQL database
- */
- function select($dbname='')
- {
- global $ezsql_mysql_str; $return_val = false;
- // Must have a database name
- if ( ! $dbname )
- {
- $this->register_error($ezsql_mysql_str[3].' in '.__FILE__.' on line '.__LINE__);
- $this->show_errors ? trigger_error($ezsql_mysql_str[3],E_USER_WARNING) : null;
- }
- // Must have an active database connection
- else if ( ! $this->dbh )
- {
- $this->register_error($ezsql_mysql_str[4].' in '.__FILE__.' on line '.__LINE__);
- $this->show_errors ? trigger_error($ezsql_mysql_str[4],E_USER_WARNING) : null;
- }
- // Try to connect to the database
- else if ( !@mysql_select_db($dbname,$this->dbh) )
- {
- // Try to get error supplied by mysql if not use our own
- if ( !$str = @mysql_error($this->dbh))
- $str = $ezsql_mysql_str[5];
- $this->register_error($str.' in '.__FILE__.' on line '.__LINE__);
- $this->show_errors ? trigger_error($str,E_USER_WARNING) : null;
- }
- else
- {
- $this->dbname = $dbname;
- $return_val = true;
- }
- return $return_val;
- }
- /**********************************************************************
- * Format a mySQL string correctly for safe mySQL insert
- * (no mater if magic quotes are on or not)
- */
- function escape($str)
- {
- return mysql_escape_string(stripslashes($str));
- }
- /**********************************************************************
- * Return mySQL specific system date syntax
- * i.e. Oracle: SYSDATE Mysql: NOW()
- */
- function sysdate()
- {
- return 'NOW()';
- }
- /**********************************************************************
- * Perform mySQL query and try to detirmin result value
- */
- function query($query)
- {
- // Initialise return
- $return_val = 0;
- // Flush cached values..
- $this->flush();
- // For reg expressions
- $query = trim($query);
- // Log how the function was called
- $this->func_call = "\$db->query(\"$query\")";
- // Keep track of the last query for debug..
- $this->last_query = $query;
- // Count how many queries there have been
- $this->num_queries++;
- // Use core file cache function
- if ( $cache = $this->get_cache($query) )
- {
- return $cache;
- }
- // If there is no existing database connection then try to connect
- if ( ! isset($this->dbh) || ! $this->dbh )
- {
- $this->connect($this->dbuser, $this->dbpassword, $this->dbhost);
- $this->select($this->dbname);
- }
- // Perform the query via std mysql_query function..
- $this->result = @mysql_query($query,$this->dbh);
- // If there is an error then take note of it..
- if ( $str = @mysql_error($this->dbh) )
- {
- $is_insert = true;
- $this->register_error($str);
- $this->show_errors ? trigger_error($str,E_USER_WARNING) : null;
- return false;
- }
- // Query was an insert, delete, update, replace
- $is_insert = false;
- if ( preg_match("/^(insert|delete|update|replace)\s+/i",$query) )
- {
- $this->rows_affected = @mysql_affected_rows();
- // Take note of the insert_id
- if ( preg_match("/^(insert|replace)\s+/i",$query) )
- {
- $this->insert_id = @mysql_insert_id($this->dbh);
- }
- // Return number fo rows affected
- $return_val = $this->rows_affected;
- }
- // Query was a select
- else
- {
- // Take note of column info
- $i=0;
- while ($i < @mysql_num_fields($this->result))
- {
- $this->col_info[$i] = @mysql_fetch_field($this->result);
- $i++;
- }
- // Store Query Results
- $num_rows=0;
- while ( $row = @mysql_fetch_object($this->result) )
- {
- // Store relults as an objects within main array
- $this->last_result[$num_rows] = $row;
- $num_rows++;
- }
- @mysql_free_result($this->result);
- // Log number of rows the query returned
- $this->num_rows = $num_rows;
- // Return number of rows selected
- $return_val = $this->num_rows;
- }
- // disk caching of queries
- $this->store_cache($query,$is_insert);
- // If debug ALL queries
- $this->trace || $this->debug_all ? $this->debug() : null ;
- return $return_val;
- }
- }
- ?>