/pma/libraries/common.lib.php

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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * Misc functions used all over the scripts.
 *
 * @version $Id: common.lib.php 12608 2009-06-30 10:48:08Z lem9 $
 * @package phpMyAdmin
 */

/**
 * Exponential expression / raise number into power
 *
 * @uses    function_exists()
 * @uses    bcpow()
 * @uses    gmp_pow()
 * @uses    gmp_strval()
 * @uses    pow()
 * @param   number  $base
 * @param   number  $exp
 * @param   string  pow function use, or false for auto-detect
 * @return  mixed  string or float
 */
function PMA_pow($base, $exp, $use_function = false)
{
    static $pow_function = null;

    if ($exp < 0) {
        return false;
    }

    if (null == $pow_function) {
        if (function_exists('bcpow')) {
            // BCMath Arbitrary Precision Mathematics Function
            $pow_function = 'bcpow';
        } elseif (function_exists('gmp_pow')) {
            // GMP Function
            $pow_function = 'gmp_pow';
        } else {
            // PHP function
            $pow_function = 'pow';
        }
    }

    if (! $use_function) {
        $use_function = $pow_function;
    }

    switch ($use_function) {
        case 'bcpow' :
            // bcscale() needed for testing PMA_pow() with base values < 1
            bcscale(10);
            $pow = bcpow($base, $exp);
            break;
        case 'gmp_pow' :
             $pow = gmp_strval(gmp_pow($base, $exp));
            break;
        case 'pow' :
            $base = (float) $base;
            $exp = (int) $exp;
            $pow = pow($base, $exp);
            break;
        default:
            $pow = $use_function($base, $exp);
    }

    return $pow;
}

/**
 * string PMA_getIcon(string $icon)
 *
 * @uses    $GLOBALS['pmaThemeImage']
 * @uses    $GLOBALS['cfg']['PropertiesIconic']
 * @uses    htmlspecialchars()
 * @param   string  $icon   name of icon file
 * @param   string  $alternate alternate text
 * @param   boolean $container include in container
 * @param   boolean $$force_text whether to force alternate text to be displayed
 * @return          html img tag
 */
function PMA_getIcon($icon, $alternate = '', $container = false, $force_text = false)
{
    $include_icon = false;
    $include_text = false;
    $include_box  = false;
    $alternate    = htmlspecialchars($alternate);
    $button       = '';

    if ($GLOBALS['cfg']['PropertiesIconic']) {
         $include_icon = true;
    }

    if ($force_text
     || ! (true === $GLOBALS['cfg']['PropertiesIconic'])
     || ! $include_icon) {
        // $cfg['PropertiesIconic'] is false or both
        // OR we have no $include_icon
        $include_text = true;
    }

    if ($include_text && $include_icon && $container) {
        // we have icon, text and request for container
        $include_box = true;
    }

    if ($include_box) {
        $button .= '<div class="nowrap">';
    }

    if ($include_icon) {
        $button .= '<img src="' . $GLOBALS['pmaThemeImage'] . $icon . '"'
            . ' title="' . $alternate . '" alt="' . $alternate . '"'
            . ' class="icon" width="16" height="16" />';
    }

    if ($include_icon && $include_text) {
        $button .= ' ';
    }

    if ($include_text) {
        $button .= $alternate;
    }

    if ($include_box) {
        $button .= '</div>';
    }

    return $button;
}

/**
 * Displays the maximum size for an upload
 *
 * @uses    $GLOBALS['strMaximumSize']
 * @uses    PMA_formatByteDown()
 * @uses    sprintf()
 * @param   integer  the size
 *
 * @return  string   the message
 *
 * @access  public
 */
function PMA_displayMaximumUploadSize($max_upload_size)
{
    // I have to reduce the second parameter (sensitiveness) from 6 to 4
    // to avoid weird results like 512 kKib
    list($max_size, $max_unit) = PMA_formatByteDown($max_upload_size, 4);
    return '(' . sprintf($GLOBALS['strMaximumSize'], $max_size, $max_unit) . ')';
}

/**
 * Generates a hidden field which should indicate to the browser
 * the maximum size for upload
 *
 * @param   integer  the size
 *
 * @return  string   the INPUT field
 *
 * @access  public
 */
 function PMA_generateHiddenMaxFileSize($max_size)
 {
     return '<input type="hidden" name="MAX_FILE_SIZE" value="' .$max_size . '" />';
 }

/**
 * Add slashes before "'" and "\" characters so a value containing them can
 * be used in a sql comparison.
 *
 * @uses    str_replace()
 * @param   string   the string to slash
 * @param   boolean  whether the string will be used in a 'LIKE' clause
 *                   (it then requires two more escaped sequences) or not
 * @param   boolean  whether to treat cr/lfs as escape-worthy entities
 *                   (converts \n to \\n, \r to \\r)
 *
 * @param   boolean  whether this function is used as part of the
 *                   "Create PHP code" dialog
 *
 * @return  string   the slashed string
 *
 * @access  public
 */
function PMA_sqlAddslashes($a_string = '', $is_like = false, $crlf = false, $php_code = false)
{
    if ($is_like) {
        $a_string = str_replace('\\', '\\\\\\\\', $a_string);
    } else {
        $a_string = str_replace('\\', '\\\\', $a_string);
    }

    if ($crlf) {
        $a_string = str_replace("\n", '\n', $a_string);
        $a_string = str_replace("\r", '\r', $a_string);
        $a_string = str_replace("\t", '\t', $a_string);
    }

    if ($php_code) {
        $a_string = str_replace('\'', '\\\'', $a_string);
    } else {
        $a_string = str_replace('\'', '\'\'', $a_string);
    }

    return $a_string;
} // end of the 'PMA_sqlAddslashes()' function


/**
 * Add slashes before "_" and "%" characters for using them in MySQL
 * database, table and field names.
 * Note: This function does not escape backslashes!
 *
 * @uses    str_replace()
 * @param   string   the string to escape
 *
 * @return  string   the escaped string
 *
 * @access  public
 */
function PMA_escape_mysql_wildcards($name)
{
    $name = str_replace('_', '\\_', $name);
    $name = str_replace('%', '\\%', $name);

    return $name;
} // end of the 'PMA_escape_mysql_wildcards()' function

/**
 * removes slashes before "_" and "%" characters
 * Note: This function does not unescape backslashes!
 *
 * @uses    str_replace()
 * @param   string   $name  the string to escape
 * @return  string   the escaped string
 * @access  public
 */
function PMA_unescape_mysql_wildcards($name)
{
    $name = str_replace('\\_', '_', $name);
    $name = str_replace('\\%', '%', $name);

    return $name;
} // end of the 'PMA_unescape_mysql_wildcards()' function

/**
 * removes quotes (',",`) from a quoted string
 *
 * checks if the sting is quoted and removes this quotes
 *
 * @uses    str_replace()
 * @uses    substr()
 * @param   string  $quoted_string  string to remove quotes from
 * @param   string  $quote          type of quote to remove
 * @return  string  unqoted string
 */
function PMA_unQuote($quoted_string, $quote = null)
{
    $quotes = array();

    if (null === $quote) {
        $quotes[] = '`';
        $quotes[] = '"';
        $quotes[] = "'";
    } else {
        $quotes[] = $quote;
    }

    foreach ($quotes as $quote) {
        if (substr($quoted_string, 0, 1) === $quote
         && substr($quoted_string, -1, 1) === $quote) {
             $unquoted_string = substr($quoted_string, 1, -1);
             // replace escaped quotes
             $unquoted_string = str_replace($quote . $quote, $quote, $unquoted_string);
             return $unquoted_string;
         }
    }

    return $quoted_string;
}

/**
 * format sql strings
 *
 * @todo    move into PMA_Sql
 * @uses    PMA_SQP_isError()
 * @uses    PMA_SQP_formatHtml()
 * @uses    PMA_SQP_formatNone()
 * @uses    is_array()
 * @param   mixed    pre-parsed SQL structure
 *
 * @return  string   the formatted sql
 *
 * @global  array    the configuration array
 * @global  boolean  whether the current statement is a multiple one or not
 *
 * @access  public
 *
 * @author  Robin Johnson <robbat2@users.sourceforge.net>
 */
function PMA_formatSql($parsed_sql, $unparsed_sql = '')
{
    global $cfg;

    // Check that we actually have a valid set of parsed data
    // well, not quite
    // first check for the SQL parser having hit an error
    if (PMA_SQP_isError()) {
        return htmlspecialchars($parsed_sql['raw']);
    }
    // then check for an array
    if (!is_array($parsed_sql)) {
        // We don't so just return the input directly
        // This is intended to be used for when the SQL Parser is turned off
        $formatted_sql = '<pre>' . "\n"
                        . (($cfg['SQP']['fmtType'] == 'none' && $unparsed_sql != '') ? $unparsed_sql : $parsed_sql) . "\n"
                        . '</pre>';
        return $formatted_sql;
    }

    $formatted_sql        = '';

    switch ($cfg['SQP']['fmtType']) {
        case 'none':
            if ($unparsed_sql != '') {
                $formatted_sql = "<pre>\n" . PMA_SQP_formatNone(array('raw' => $unparsed_sql)) . "\n</pre>";
            } else {
                $formatted_sql = PMA_SQP_formatNone($parsed_sql);
            }
            break;
        case 'html':
            $formatted_sql = PMA_SQP_formatHtml($parsed_sql, 'color');
            break;
        case 'text':
            //$formatted_sql = PMA_SQP_formatText($parsed_sql);
            $formatted_sql = PMA_SQP_formatHtml($parsed_sql, 'text');
            break;
        default:
            break;
    } // end switch

    return $formatted_sql;
} // end of the "PMA_formatSql()" function


/**
 * Displays a link to the official MySQL documentation
 *
 * @uses    $cfg['MySQLManualType']
 * @uses    $cfg['MySQLManualBase']
 * @uses    $cfg['ReplaceHelpImg']
 * @uses    $GLOBALS['mysql_4_1_doc_lang']
 * @uses    $GLOBALS['mysql_5_1_doc_lang']
 * @uses    $GLOBALS['mysql_5_0_doc_lang']
 * @uses    $GLOBALS['strDocu']
 * @uses    $GLOBALS['pmaThemeImage']
 * @uses    PMA_MYSQL_INT_VERSION
 * @uses    strtolower()
 * @uses    str_replace()
 * @param string  chapter of "HTML, one page per chapter" documentation
 * @param string  contains name of page/anchor that is being linked
 * @param bool    whether to use big icon (like in left frame)
 * @param string  anchor to page part
 *
 * @return  string  the html link
 *
 * @access  public
 */
function PMA_showMySQLDocu($chapter, $link, $big_icon = false, $anchor = '')
{
    global $cfg;

    if ($cfg['MySQLManualType'] == 'none' || empty($cfg['MySQLManualBase'])) {
        return '';
    }

    // Fixup for newly used names:
    $chapter = str_replace('_', '-', strtolower($chapter));
    $link = str_replace('_', '-', strtolower($link));

    switch ($cfg['MySQLManualType']) {
        case 'chapters':
            if (empty($chapter)) {
                $chapter = 'index';
            }
            if (empty($anchor)) {
                $anchor = $link;
            }
            $url = $cfg['MySQLManualBase'] . '/' . $chapter . '.html#' . $anchor;
            break;
        case 'big':
            if (empty($anchor)) {
                $anchor = $link;
            }
            $url = $cfg['MySQLManualBase'] . '#' . $anchor;
            break;
        case 'searchable':
            if (empty($link)) {
                $link = 'index';
            }
            $url = $cfg['MySQLManualBase'] . '/' . $link . '.html';
            if (!empty($anchor)) {
                $url .= '#' . $anchor;
            }
            break;
        case 'viewable':
        default:
            if (empty($link)) {
                $link = 'index';
            }
            $mysql = '5.0';
            $lang = 'en';
            if (defined('PMA_MYSQL_INT_VERSION')) {
                if (PMA_MYSQL_INT_VERSION >= 50100) {
                    $mysql = '5.1';
                    if (!empty($GLOBALS['mysql_5_1_doc_lang'])) {
                        $lang = $GLOBALS['mysql_5_1_doc_lang'];
                    }
                } elseif (PMA_MYSQL_INT_VERSION >= 50000) {
                    $mysql = '5.0';
                    if (!empty($GLOBALS['mysql_5_0_doc_lang'])) {
                        $lang = $GLOBALS['mysql_5_0_doc_lang'];
                    }
                }
            }
            $url = $cfg['MySQLManualBase'] . '/' . $mysql . '/' . $lang . '/' . $link . '.html';
            if (!empty($anchor)) {
                $url .= '#' . $anchor;
            }
            break;
    }

    if ($big_icon) {
        return '<a href="' . $url . '" target="mysql_doc"><img class="icon" src="' . $GLOBALS['pmaThemeImage'] . 'b_sqlhelp.png" width="16" height="16" alt="' . $GLOBALS['strDocu'] . '" title="' . $GLOBALS['strDocu'] . '" /></a>';
    } elseif ($GLOBALS['cfg']['ReplaceHelpImg']) {
        return '<a href="' . $url . '" target="mysql_doc"><img class="icon" src="' . $GLOBALS['pmaThemeImage'] . 'b_help.png" width="11" height="11" alt="' . $GLOBALS['strDocu'] . '" title="' . $GLOBALS['strDocu'] . '" /></a>';
    } else {
        return '[<a href="' . $url . '" target="mysql_doc">' . $GLOBALS['strDocu'] . '</a>]';
    }
} // end of the 'PMA_showMySQLDocu()' function

/**
 * returns HTML for a footnote marker and add the messsage to the footnotes
 *
 * @uses    $GLOBALS['footnotes']
 * @param   string   the error message
 * @return  string html code for a footnote marker
 * @access  public
 */
function PMA_showHint($message, $bbcode = false, $type = 'notice')
{
    if ($message instanceof PMA_Message) {
        $key = $message->getHash();
        $type = $message->getLevel();
    } else {
        $key = md5($message);
    }

    if (! isset($GLOBALS['footnotes'][$key])) {
        if (empty($GLOBALS['footnotes']) || ! is_array($GLOBALS['footnotes'])) {
            $GLOBALS['footnotes'] = array();
        }
        $nr = count($GLOBALS['footnotes']) + 1;
        // this is the first instance of this message
        $instance = 1;
        $GLOBALS['footnotes'][$key] = array(
            'note'      => $message,
            'type'      => $type,
            'nr'        => $nr,
            'instance'  => $instance
        );
    } else {
        $nr = $GLOBALS['footnotes'][$key]['nr'];
        // another instance of this message (to ensure ids are unique)
        $instance = ++$GLOBALS['footnotes'][$key]['instance'];
    }

    if ($bbcode) {
        return '[sup]' . $nr . '[/sup]';
    }

    // footnotemarker used in js/tooltip.js
    return '<sup class="footnotemarker" id="footnote_sup_' . $nr . '_' . $instance . '">' . $nr . '</sup>';
}

/**
 * Displays a MySQL error message in the right frame.
 *
 * @uses    footer.inc.php
 * @uses    header.inc.php
 * @uses    $GLOBALS['sql_query']
 * @uses    $GLOBALS['strError']
 * @uses    $GLOBALS['strSQLQuery']
 * @uses    $GLOBALS['pmaThemeImage']
 * @uses    $GLOBALS['strEdit']
 * @uses    $GLOBALS['strMySQLSaid']
 * @uses    $GLOBALS['cfg']['PropertiesIconic']
 * @uses    $GLOBALS['cfg']['MaxCharactersInDisplayedSQL']
 * @uses    PMA_backquote()
 * @uses    PMA_DBI_getError()
 * @uses    PMA_formatSql()
 * @uses    PMA_generate_common_hidden_inputs()
 * @uses    PMA_generate_common_url()
 * @uses    PMA_showMySQLDocu()
 * @uses    PMA_sqlAddslashes()
 * @uses    PMA_SQP_isError()
 * @uses    PMA_SQP_parse()
 * @uses    PMA_SQP_getErrorString()
 * @uses    strtolower()
 * @uses    urlencode()
 * @uses    str_replace()
 * @uses    nl2br()
 * @uses    substr()
 * @uses    preg_replace()
 * @uses    preg_match()
 * @uses    explode()
 * @uses    implode()
 * @uses    is_array()
 * @uses    function_exists()
 * @uses    htmlspecialchars()
 * @uses    trim()
 * @uses    strstr()
 * @param   string   the error message
 * @param   string   the sql query that failed
 * @param   boolean  whether to show a "modify" link or not
 * @param   string   the "back" link url (full path is not required)
 * @param   boolean  EXIT the page?
 *
 * @global  string    the curent table
 * @global  string    the current db
 *
 * @access  public
 */
function PMA_mysqlDie($error_message = '', $the_query = '',
                        $is_modify_link = true, $back_url = '', $exit = true)
{
    global $table, $db;

    /**
     * start http output, display html headers
     */
    require_once './libraries/header.inc.php';

    if (!$error_message) {
        $error_message = PMA_DBI_getError();
    }
    if (!$the_query && !empty($GLOBALS['sql_query'])) {
        $the_query = $GLOBALS['sql_query'];
    }

    // --- Added to solve bug #641765
    // Robbat2 - 12 January 2003, 9:46PM
    // Revised, Robbat2 - 13 January 2003, 2:59PM
    if (!function_exists('PMA_SQP_isError') || PMA_SQP_isError()) {
        $formatted_sql = htmlspecialchars($the_query);
    } elseif (empty($the_query) || trim($the_query) == '') {
        $formatted_sql = '';
    } else {
        if (strlen($the_query) > $GLOBALS['cfg']['MaxCharactersInDisplayedSQL']) {
            $formatted_sql = substr($the_query, 0, $GLOBALS['cfg']['MaxCharactersInDisplayedSQL']) . '[...]';
        } else {
            $formatted_sql = PMA_formatSql(PMA_SQP_parse($the_query), $the_query);
        }
    }
    // ---
    echo "\n" . '<!-- PMA-SQL-ERROR -->' . "\n";
    echo '    <div class="error"><h1>' . $GLOBALS['strError'] . '</h1>' . "\n";
    // if the config password is wrong, or the MySQL server does not
    // respond, do not show the query that would reveal the
    // username/password
    if (!empty($the_query) && !strstr($the_query, 'connect')) {
        // --- Added to solve bug #641765
        // Robbat2 - 12 January 2003, 9:46PM
        // Revised, Robbat2 - 13 January 2003, 2:59PM
        if (function_exists('PMA_SQP_isError') && PMA_SQP_isError()) {
            echo PMA_SQP_getErrorString() . "\n";
            echo '<br />' . "\n";
        }
        // ---
        // modified to show me the help on sql errors (Michael Keck)
        echo '    <p><strong>' . $GLOBALS['strSQLQuery'] . ':</strong>' . "\n";
        if (strstr(strtolower($formatted_sql), 'select')) { // please show me help to the error on select
            echo PMA_showMySQLDocu('SQL-Syntax', 'SELECT');
        }
        if ($is_modify_link) {
            $_url_params = array(
                'sql_query' => $the_query,
                'show_query' => 1,
            );
            if (strlen($table)) {
                $_url_params['db'] = $db;
                $_url_params['table'] = $table;
                $doedit_goto = '<a href="tbl_sql.php?' . PMA_generate_common_url($_url_params) . '">';
            } elseif (strlen($db)) {
                $_url_params['db'] = $db;
                $doedit_goto = '<a href="db_sql.php?' . PMA_generate_common_url($_url_params) . '">';
            } else {
                $doedit_goto = '<a href="server_sql.php?' . PMA_generate_common_url($_url_params) . '">';
            }

            echo $doedit_goto
               . PMA_getIcon('b_edit.png', $GLOBALS['strEdit'])
               . '</a>';
        } // end if
        echo '    </p>' . "\n"
            .'    <p>' . "\n"
            .'        ' . $formatted_sql . "\n"
            .'    </p>' . "\n";
    } // end if

    $tmp_mysql_error = ''; // for saving the original $error_message
    if (!empty($error_message)) {
        $tmp_mysql_error = strtolower($error_message); // save the original $error_message
        $error_message = htmlspecialchars($error_message);
        $error_message = preg_replace("@((\015\012)|(\015)|(\012)){3,}@", "\n\n", $error_message);
    }
    // modified to show me the help on error-returns (Michael Keck)
    // (now error-messages-server)
    echo '<p>' . "\n"
            . '    <strong>' . $GLOBALS['strMySQLSaid'] . '</strong>'
            . PMA_showMySQLDocu('Error-messages-server', 'Error-messages-server')
            . "\n"
            . '</p>' . "\n";

    // The error message will be displayed within a CODE segment.
    // To preserve original formatting, but allow wordwrapping, we do a couple of replacements

    // Replace all non-single blanks with their HTML-counterpart
    $error_message = str_replace('  ', '&nbsp;&nbsp;', $error_message);
    // Replace TAB-characters with their HTML-counterpart
    $error_message = str_replace("\t", '&nbsp;&nbsp;&nbsp;&nbsp;', $error_message);
    // Replace linebreaks
    $error_message = nl2br($error_message);

    echo '<code>' . "\n"
        . $error_message . "\n"
        . '</code><br />' . "\n";
    echo '</div>';

    if ($exit) {
        if (! empty($back_url)) {
            if (strstr($back_url, '?')) {
                $back_url .= '&amp;no_history=true';
            } else {
                $back_url .= '?no_history=true';
            }
            echo '<fieldset class="tblFooters">';
            echo '[ <a href="' . $back_url . '">' . $GLOBALS['strBack'] . '</a> ]';
            echo '</fieldset>' . "\n\n";
        }
        /**
         * display footer and exit
         */
        require_once './libraries/footer.inc.php';
    }
} // end of the 'PMA_mysqlDie()' function

/**
 * Send HTTP header, taking IIS limits into account (600 seems ok)
 *
 * @uses    PMA_IS_IIS
 * @uses    PMA_COMING_FROM_COOKIE_LOGIN
 * @uses    PMA_get_arg_separator()
 * @uses    SID
 * @uses    strlen()
 * @uses    strpos()
 * @uses    header()
 * @uses    session_write_close()
 * @uses    headers_sent()
 * @uses    function_exists()
 * @uses    debug_print_backtrace()
 * @uses    trigger_error()
 * @uses    defined()
 * @param   string   $uri the header to send
 * @return  boolean  always true
 */
function PMA_sendHeaderLocation($uri)
{
    if (PMA_IS_IIS && strlen($uri) > 600) {

        echo '<html><head><title>- - -</title>' . "\n";
        echo '<meta http-equiv="expires" content="0">' . "\n";
        echo '<meta http-equiv="Pragma" content="no-cache">' . "\n";
        echo '<meta http-equiv="Cache-Control" content="no-cache">' . "\n";
        echo '<meta http-equiv="Refresh" content="0;url=' .$uri . '">' . "\n";
        echo '<script type="text/javascript">' . "\n";
        echo '//<![CDATA[' . "\n";
        echo 'setTimeout("window.location = unescape(\'"' . $uri . '"\')", 2000);' . "\n";
        echo '//]]>' . "\n";
        echo '</script>' . "\n";
        echo '</head>' . "\n";
        echo '<body>' . "\n";
        echo '<script type="text/javascript">' . "\n";
        echo '//<![CDATA[' . "\n";
        echo 'document.write(\'<p><a href="' . $uri . '">' . $GLOBALS['strGo'] . '</a></p>\');' . "\n";
        echo '//]]>' . "\n";
        echo '</script></body></html>' . "\n";

    } else {
        if (SID) {
            if (strpos($uri, '?') === false) {
                header('Location: ' . $uri . '?' . SID);
            } else {
                $separator = PMA_get_arg_separator();
                header('Location: ' . $uri . $separator . SID);
            }
        } else {
            session_write_close();
            if (headers_sent()) {
                if (function_exists('debug_print_backtrace')) {
                    echo '<pre>';
                    debug_print_backtrace();
                    echo '</pre>';
                }
                trigger_error('PMA_sendHeaderLocation called when headers are already sent!', E_USER_ERROR);
            }
            // bug #1523784: IE6 does not like 'Refresh: 0', it
            // results in a blank page
            // but we need it when coming from the cookie login panel)
            if (PMA_IS_IIS && defined('PMA_COMING_FROM_COOKIE_LOGIN')) {
                header('Refresh: 0; ' . $uri);
            } else {
                header('Location: ' . $uri);
            }
        }
    }
}

/**
 * returns array with tables of given db with extended information and grouped
 *
 * @uses    $cfg['LeftFrameTableSeparator']
 * @uses    $cfg['LeftFrameTableLevel']
 * @uses    $cfg['ShowTooltipAliasTB']
 * @uses    $cfg['NaturalOrder']
 * @uses    PMA_backquote()
 * @uses    count()
 * @uses    array_merge
 * @uses    uksort()
 * @uses    strstr()
 * @uses    explode()
 * @param   string  $db     name of db
 * @param   string  $tables name of tables
 * @param   integer $limit_offset   list offset
 * @param   integer $limit_count    max tables to return
 * return   array   (recursive) grouped table list
 */
function PMA_getTableList($db, $tables = null, $limit_offset = 0, $limit_count = false)
{
    $sep = $GLOBALS['cfg']['LeftFrameTableSeparator'];

    if (null === $tables) {
        $tables = PMA_DBI_get_tables_full($db, false, false, null, $limit_offset, $limit_count);
        if ($GLOBALS['cfg']['NaturalOrder']) {
            uksort($tables, 'strnatcasecmp');
        }
    }

    if (count($tables) < 1) {
        return $tables;
    }

    $default = array(
        'Name'      => '',
        'Rows'      => 0,
        'Comment'   => '',
        'disp_name' => '',
    );

    $table_groups = array();

    // for blobstreaming - list of blobstreaming tables - rajk

    // load PMA configuration
    $PMA_Config = $_SESSION['PMA_Config'];

    // if PMA configuration exists
    if (!empty($PMA_Config))
        $session_bs_tables = $_SESSION['PMA_Config']->get('BLOBSTREAMING_TABLES');

    foreach ($tables as $table_name => $table) {
        // if BS tables exist
        if (isset($session_bs_tables))
            // compare table name to tables in list of blobstreaming tables
            foreach ($session_bs_tables as $table_key=>$table_val)
                // if table is in list, skip outer foreach loop
                if ($table_name == $table_key)
                    continue 2;

        // check for correct row count
        if (null === $table['Rows']) {
            // Do not check exact row count here,
            // if row count is invalid possibly the table is defect
            // and this would break left frame;
            // but we can check row count if this is a view or the
            // information_schema database
            // since PMA_Table::countRecords() returns a limited row count
            // in this case.

            // set this because PMA_Table::countRecords() can use it
            $tbl_is_view = PMA_Table::isView($db, $table['Name']);

            if ($tbl_is_view || 'information_schema' == $db) {
                $table['Rows'] = PMA_Table::countRecords($db, $table['Name'],
                        $return = true);
            }
        }

        // in $group we save the reference to the place in $table_groups
        // where to store the table info
        if ($GLOBALS['cfg']['LeftFrameDBTree']
            && $sep && strstr($table_name, $sep))
        {
            $parts = explode($sep, $table_name);

            $group =& $table_groups;
            $i = 0;
            $group_name_full = '';
            $parts_cnt = count($parts) - 1;
            while ($i < $parts_cnt
              && $i < $GLOBALS['cfg']['LeftFrameTableLevel']) {
                $group_name = $parts[$i] . $sep;
                $group_name_full .= $group_name;

                if (!isset($group[$group_name])) {
                    $group[$group_name] = array();
                    $group[$group_name]['is' . $sep . 'group'] = true;
                    $group[$group_name]['tab' . $sep . 'count'] = 1;
                    $group[$group_name]['tab' . $sep . 'group'] = $group_name_full;
                } elseif (!isset($group[$group_name]['is' . $sep . 'group'])) {
                    $table = $group[$group_name];
                    $group[$group_name] = array();
                    $group[$group_name][$group_name] = $table;
                    unset($table);
                    $group[$group_name]['is' . $sep . 'group'] = true;
                    $group[$group_name]['tab' . $sep . 'count'] = 1;
                    $group[$group_name]['tab' . $sep . 'group'] = $group_name_full;
                } else {
                    $group[$group_name]['tab' . $sep . 'count']++;
                }
                $group =& $group[$group_name];
                $i++;
            }
        } else {
            if (!isset($table_groups[$table_name])) {
                $table_groups[$table_name] = array();
            }
            $group =& $table_groups;
        }


        if ($GLOBALS['cfg']['ShowTooltipAliasTB']
          && $GLOBALS['cfg']['ShowTooltipAliasTB'] !== 'nested') {
            // switch tooltip and name
            $table['Comment'] = $table['Name'];
            $table['disp_name'] = $table['Comment'];
        } else {
            $table['disp_name'] = $table['Name'];
        }

        $group[$table_name] = array_merge($default, $table);
    }

    return $table_groups;
}

/* ----------------------- Set of misc functions ----------------------- */


/**
 * Adds backquotes on both sides of a database, table or field name.
 * and escapes backquotes inside the name with another backquote
 *
 * example:
 * <code>
 * echo PMA_backquote('owner`s db'); // `owner``s db`
 *
 * </code>
 *
 * @uses    PMA_backquote()
 * @uses    is_array()
 * @uses    strlen()
 * @uses    str_replace()
 * @param   mixed    $a_name    the database, table or field name to "backquote"
 *                              or array of it
 * @param   boolean  $do_it     a flag to bypass this function (used by dump
 *                              functions)
 * @return  mixed    the "backquoted" database, table or field name if the
 *                   current MySQL release is >= 3.23.6, the original one
 *                   else
 * @access  public
 */
function PMA_backquote($a_name, $do_it = true)
{
    if (! $do_it) {
        return $a_name;
    }

    if (is_array($a_name)) {
         $result = array();
         foreach ($a_name as $key => $val) {
             $result[$key] = PMA_backquote($val);
         }
         return $result;
    }

    // '0' is also empty for php :-(
    if (strlen($a_name) && $a_name !== '*') {
        return '`' . str_replace('`', '``', $a_name) . '`';
    } else {
        return $a_name;
    }
} // end of the 'PMA_backquote()' function


/**
 * Defines the <CR><LF> value depending on the user OS.
 *
 * @uses    PMA_USR_OS
 * @return  string   the <CR><LF> value to use
 *
 * @access  public
 */
function PMA_whichCrlf()
{
    $the_crlf = "\n";

    // The 'PMA_USR_OS' constant is defined in "./libraries/Config.class.php"
    // Win case
    if (PMA_USR_OS == 'Win') {
        $the_crlf = "\r\n";
    }
    // Others
    else {
        $the_crlf = "\n";
    }

    return $the_crlf;
} // end of the 'PMA_whichCrlf()' function

/**
 * Reloads navigation if needed.
 *
 * @uses    $GLOBALS['reload']
 * @uses    $GLOBALS['db']
 * @uses    PMA_generate_common_url()
 * @global  array  configuration
 *
 * @access  public
 */
function PMA_reloadNavigation()
{
    global $cfg;

    // Reloads the navigation frame via JavaScript if required
    if (isset($GLOBALS['reload']) && $GLOBALS['reload']) {
        // one of the reasons for a reload is when a table is dropped
        // in this case, get rid of the table limit offset, otherwise
        // we have a problem when dropping a table on the last page
        // and the offset becomes greater than the total number of tables
        unset($_SESSION['userconf']['table_limit_offset']);
        echo "\n";
        $reload_url = './navigation.php?' . PMA_generate_common_url($GLOBALS['db'], '', '&');
        ?>
<script type="text/javascript">
//<![CDATA[
if (typeof(window.parent) != 'undefined'
    && typeof(window.parent.frame_navigation) != 'undefined'
    && window.parent.goTo) {
    window.parent.goTo('<?php echo $reload_url; ?>');
}
//]]>
</script>
        <?php
        unset($GLOBALS['reload']);
    }
}

/**
 * displays the message and the query
 * usually the message is the result of the query executed
 *
 * @param   string  $message    the message to display
 * @param   string  $sql_query  the query to display
 * @param   string  $type       the type (level) of the message
 * @global  array   the configuration array
 * @uses    $cfg
 * @access  public
 */
function PMA_showMessage($message, $sql_query = null, $type = 'notice')
{
    global $cfg;

    if (null === $sql_query) {
        if (! empty($GLOBALS['display_query'])) {
            $sql_query = $GLOBALS['display_query'];
        } elseif ($cfg['SQP']['fmtType'] == 'none' && ! empty($GLOBALS['unparsed_sql'])) {
            $sql_query = $GLOBALS['unparsed_sql'];
        } elseif (! empty($GLOBALS['sql_query'])) {
            $sql_query = $GLOBALS['sql_query'];
        } else {
            $sql_query = '';
        }
    }

    // Corrects the tooltip text via JS if required
    // @todo this is REALLY the wrong place to do this - very unexpected here
    if (strlen($GLOBALS['table']) && $cfg['ShowTooltip']) {
        $tooltip = PMA_Table::sGetToolTip($GLOBALS['db'], $GLOBALS['table']);
        $uni_tbl = PMA_jsFormat($GLOBALS['db'] . '.' . $GLOBALS['table'], false);
        echo "\n";
        echo '<script type="text/javascript">' . "\n";
        echo '//<![CDATA[' . "\n";
        echo "if (window.parent.updateTableTitle) window.parent.updateTableTitle('" . $uni_tbl . "', '" . PMA_jsFormat($tooltip, false) . "');" . "\n";
        echo '//]]>' . "\n";
        echo '</script>' . "\n";
    } // end if ... elseif

    // Checks if the table needs to be repaired after a TRUNCATE query.
    // @todo what about $GLOBALS['display_query']???
    // @todo this is REALLY the wrong place to do this - very unexpected here
    if (strlen($GLOBALS['table'])
     && $GLOBALS['sql_query'] == 'TRUNCATE TABLE ' . PMA_backquote($GLOBALS['table'])) {
        if (PMA_Table::sGetStatusInfo($GLOBALS['db'], $GLOBALS['table'], 'Index_length') > 1024) {
            PMA_DBI_try_query('REPAIR TABLE ' . PMA_backquote($GLOBALS['table']));
        }
    }
    unset($tbl_status);

    echo '<div align="' . $GLOBALS['cell_align_left'] . '">' . "\n";

    if ($message instanceof PMA_Message) {
        if (isset($GLOBALS['special_message'])) {
            $message->addMessage($GLOBALS['special_message']);
            unset($GLOBALS['special_message']);
        }
        $message->display();
        $type = $message->getLevel();
    } else {
        echo '<div class="' . $type . '">';
        echo PMA_sanitize($message);
        if (isset($GLOBALS['special_message'])) {
            echo PMA_sanitize($GLOBALS['special_message']);
            unset($GLOBALS['special_message']);
        }
        echo '</div>';
    }

    if ($cfg['ShowSQL'] == true && ! empty($sql_query)) {
        // Html format the query to be displayed
        // If we want to show some sql code it is easiest to create it here
        /* SQL-Parser-Analyzer */

        if (! empty($GLOBALS['show_as_php'])) {
            $new_line = '\\n"<br />' . "\n"
                . '&nbsp;&nbsp;&nbsp;&nbsp;. "';
            $query_base = htmlspecialchars(addslashes($sql_query));
            $query_base = preg_replace('/((\015\012)|(\015)|(\012))/', $new_line, $query_base);
        } else {
            $query_base = $sql_query;
        }

        $query_too_big = false;

        if (strlen($query_base) > $cfg['MaxCharactersInDisplayedSQL']) {
            // when the query is large (for example an INSERT of binary
            // data), the parser chokes; so avoid parsing the query
            $query_too_big = true;
            $shortened_query_base = nl2br(htmlspecialchars(substr($sql_query, 0, $cfg['MaxCharactersInDisplayedSQL']) . '[...]'));
        } elseif (! empty($GLOBALS['parsed_sql'])
         && $query_base == $GLOBALS['parsed_sql']['raw']) {
            // (here, use "! empty" because when deleting a bookmark,
            // $GLOBALS['parsed_sql'] is set but empty
            $parsed_sql = $GLOBALS['parsed_sql'];
        } else {
            // Parse SQL if needed
            $parsed_sql = PMA_SQP_parse($query_base);
        }

        // Analyze it
        if (isset($parsed_sql)) {
            $analyzed_display_query = PMA_SQP_analyze($parsed_sql);
            // Here we append the LIMIT added for navigation, to
            // enable its display. Adding it higher in the code
            // to $sql_query would create a problem when
            // using the Refresh or Edit links.

            // Only append it on SELECTs.

            /**
             * @todo what would be the best to do when someone hits Refresh:
             * use the current LIMITs ?
             */

            if (isset($analyzed_display_query[0]['queryflags']['select_from'])
             && isset($GLOBALS['sql_limit_to_append'])) {
                $query_base = $analyzed_display_query[0]['section_before_limit']
                    . "\n" . $GLOBALS['sql_limit_to_append']
                    . $analyzed_display_query[0]['section_after_limit'];
                // Need to reparse query
                $parsed_sql = PMA_SQP_parse($query_base);
            }
        }

        if (! empty($GLOBALS['show_as_php'])) {
            $query_base = '$sql  = "' . $query_base;
        } elseif (! empty($GLOBALS['validatequery'])) {
            $query_base = PMA_validateSQL($query_base);
        } elseif (isset($parsed_sql)) {
            $query_base = PMA_formatSql($parsed_sql, $query_base);
        }

        // Prepares links that may be displayed to edit/explain the query
        // (don't go to default pages, we must go to the page
        // where the query box is available)

        // Basic url query part
        $url_params = array();
        if (strlen($GLOBALS['db'])) {
            $url_params['db'] = $GLOBALS['db'];
            if (strlen($GLOBALS['table'])) {
                $url_params['table'] = $GLOBALS['table'];
                $edit_link = 'tbl_sql.php';
            } else {
                $edit_link = 'db_sql.php';
            }
        } else {
            $edit_link = 'server_sql.php';
        }

        // Want to have the query explained (Mike Beck 2002-05-22)
        // but only explain a SELECT (that has not been explained)
        /* SQL-Parser-Analyzer */
        $explain_link = '';
        if (! empty($cfg['SQLQuery']['Explain']) && ! $query_too_big) {
            $explain_params = $url_params;
            // Detect if we are validating as well
            // To preserve the validate uRL data
            if (! empty($GLOBALS['validatequery'])) {
                $explain_params['validatequery'] = 1;
            }

            if (preg_match('@^SELECT[[:space:]]+@i', $sql_query)) {
                $explain_params['sql_query'] = 'EXPLAIN ' . $sql_query;
                $_message = $GLOBALS['strExplain'];
            } elseif (preg_match('@^EXPLAIN[[:space:]]+SELECT[[:space:]]+@i', $sql_query)) {
                $explain_params['sql_query'] = substr($sql_query, 8);
                $_message = $GLOBALS['strNoExplain'];
            }
            if (isset($explain_params['sql_query'])) {
                $explain_link = 'import.php' . PMA_generate_common_url($explain_params);
                $explain_link = ' [' . PMA_linkOrButton($explain_link, $_message) . ']';
            }
        } //show explain

        $url_params['sql_query']  = $sql_query;
        $url_params['show_query'] = 1;

        if (! empty($cfg['SQLQuery']['Edit']) && ! $query_too_big) {
            if ($cfg['EditInWindow'] == true) {
                $onclick = 'window.parent.focus_querywindow(\'' . PMA_jsFormat($sql_query, false) . '\'); return false;';
            } else {
                $onclick = '';
            }

            $edit_link .= PMA_generate_common_url($url_params) . '#querybox';
            $edit_link = ' [' . PMA_linkOrButton($edit_link, $GLOBALS['strEdit'], array('onclick' => $onclick)) . ']';
        } else {
            $edit_link = '';
        }

        $url_qpart = PMA_generate_common_url($url_params);

        // Also we would like to get the SQL formed in some nice
        // php-code (Mike Beck 2002-05-22)
        if (! empty($cfg['SQLQuery']['ShowAsPHP']) && ! $query_too_big) {
            $php_params = $url_params;

            if (! empty($GLOBALS['show_as_php'])) {
                $_message = $GLOBALS['strNoPhp'];
            } else {
                $php_params['show_as_php'] = 1;
                $_message = $GLOBALS['strPhp'];
            }

            $php_link = 'import.php' . PMA_generate_common_url($php_params);
            $php_link = ' [' . PMA_linkOrButton($php_link, $_message) . ']';

            if (isset($GLOBALS['show_as_php'])) {
                $runquery_link = 'import.php' . PMA_generate_common_url($url_params);
                $php_link .= ' [' . PMA_linkOrButton($runquery_link, $GLOBALS['strRunQuery']) . ']';
            }
        } else {
            $php_link = '';
        } //show as php

        // Refresh query
        if (! empty($cfg['SQLQuery']['Refresh'])
         && preg_match('@^(SELECT|SHOW)[[:space:]]+@i', $sql_query)) {
            $refresh_link = 'import.php' . PMA_generate_common_url($url_params);
            $refresh_link = ' [' . PMA_linkOrButton($refresh_link, $GLOBALS['strRefresh']) . ']';
        } else {
            $refresh_link = '';
        } //show as php

        if (! empty($cfg['SQLValidator']['use'])
         && ! empty($cfg['SQLQuery']['Validate'])) {
            $validate_params = $url_params;
            if (!empty($GLOBALS['validatequery'])) {
                $validate_message = $GLOBALS['strNoValidateSQL'] ;
            } else {
                $validate_params['validatequery'] = 1;
                $validate_message = $GLOBALS['strValidateSQL'] ;
            }

            $validate_link = 'import.php' . PMA_generate_common_url($validate_params);
            $validate_link = ' [' . PMA_linkOrButton($validate_link, $validate_message) . ']';
        } else {
            $validate_link = '';
        } //validator

        echo '<code class="sql">';
        if ($query_too_big) {
            echo $shortened_query_base;
        } else {
            echo $query_base;
        }

        //Clean up the end of the PHP
        if (! empty($GLOBALS['show_as_php'])) {
            echo '";';
        }
        echo '</code>';

        echo '<div class="tools">';
        // avoid displaying a Profiling checkbox that could
        // be checked, which would reexecute an INSERT, for example
        if (! empty($refresh_link)) {
            PMA_profilingCheckbox($sql_query);
        }
        echo $edit_link . $explain_link . $php_link . $refresh_link . $validate_link;
        echo '</div>';
    }
    echo '</div><br />' . "\n";
} // end of the 'PMA_showMessage()' function

/**
 * Verifies if current MySQL server supports profiling
 *
 * @uses    $_SESSION['profiling_supported'] for caching
 * @uses    $GLOBALS['server']
 * @uses    PMA_DBI_fetch_value()
 * @uses    PMA_MYSQL_INT_VERSION
 * @uses    defined()
 * @access  public
 * @return  boolean whether profiling is supported
 *
 * @author   Marc Delisle
 */
function PMA_profilingSupported()
{
    if (! PMA_cacheExists('profiling_supported', true)) {
        // 5.0.37 has profiling but for example, 5.1.20 does not
        // (avoid a trip to the server for MySQL before 5.0.37)
        // and do not set a constant as we might be switching servers
        if (defined('PMA_MYSQL_INT_VERSION')
         && PMA_MYSQL_INT_VERSION >= 50037
         && PMA_DBI_fetch_value("SHOW VARIABLES LIKE 'profiling'")) {
            PMA_cacheSet('profiling_supported', true, true);
        } else {
            PMA_cacheSet('profiling_supported', false, true);
        }
    }

    return PMA_cacheGet('profiling_supported', true);
}

/**
 * Displays a form with the Profiling checkbox
 *
 * @param   string  $sql_query
 * @access  public
 *
 * @author   Marc Delisle
 */
function PMA_profilingCheckbox($sql_query)
{
    if (PMA_profilingSupported()) {
        echo '<form action="sql.php" method="post">' . "\n";
        echo PMA_generate_common_hidden_inputs($GLOBALS['db'], $GLOBALS['table']);
        echo '<input type="hidden" name="sql_query" value="' . htmlspecialchars($sql_query) . '" />' . "\n";
        echo '<input type="hidden" name="profiling_form" value="1" />' . "\n";
        PMA_generate_html_checkbox('profiling', $GLOBALS['strProfiling'], isset($_SESSION['profiling']), true);
        echo '<noscript><input type="submit" value="' . $GLOBALS['strGo'] . '" /></noscript>' . "\n";
        echo '</form>' . "\n";
    }
}

/**
 * Displays the results of SHOW PROFILE
 *
 * @param    array   the results
 * @access  public
 *
 * @author   Marc Delisle
 */
function PMA_profilingResults($profiling_results)
{
    echo '<fieldset><legend>' . $GLOBALS['strProfiling'] . '</legend>' . "\n";
    echo '<table>' . "\n";
    echo ' <tr>' .  "\n";
    echo '  <th>' . $GLOBALS['strStatus'] . '</th>' . "\n";
    echo '  <th>' . $GLOBALS['strTime'] . '</th>' . "\n";
    echo ' </tr>' .  "\n";

    foreach($profiling_results as $one_result) {
        echo ' <tr>' .  "\n";
        echo '<td>' . $one_result['Status'] . '</td>' .  "\n";
        echo '<td>' . $one_result['Duration'] . '</td>' .  "\n";
    }
    echo '</table>' . "\n";
    echo '</fieldset>' . "\n";
}

/**
 * Formats $value to byte view
 *
 * @param    double   the value to format
 * @param    integer  the sensitiveness
 * @param    integer  the number of decimals to retain
 *
 * @return   array    the formatted value and its unit
 *
 * @access  public
 *
 * @author   staybyte
 * @version  1.2 - 18 July 2002
 */
function PMA_formatByteDown($value, $limes = 6, $comma = 0)
{
    $dh           = PMA_pow(10, $comma);
    $li           = PMA_pow(10, $limes);
    $return_value = $value;
    $unit         = $GLOBALS['byteUnits'][0];

    for ($d = 6, $ex = 15; $d >= 1; $d--, $ex-=3) {
        if (isset($GLOBALS['byteUnits'][$d]) && $value >= $li * PMA_pow(10, $ex)) {
            // use 1024.0 to avoid integer overflow on 64-bit machines
            $value = round($value / (PMA_pow(1024, $d) / $dh)) /$dh;
            $unit = $GLOBALS['byteUnits'][$d];
            break 1;
        } // end if
    } // end for

    if ($unit != $GLOBALS['byteUnits'][0]) {
        // if the unit is not bytes (as represented in current language)
        // reformat with max length of 5
        // 4th parameter=true means do not reformat if value < 1
        $return_value = PMA_formatNumber($value, 5, $comma, true);
    } else {
        // do not reformat, just handle the locale
        $return_value = PMA_formatNumber($value, 0);
    }

    return array($return_value, $unit);
} // end of the 'PMA_formatByteDown' function

/**
 * Formats $value to the given length and appends SI prefixes
 * $comma is not substracted from the length
 * with a $length of 0 no truncation occurs, number is only formated
 * to the current locale
 *
 * examples:
 * <code>
 * echo PMA_formatNumber(123456789, 6);     // 123,457 k
 * echo PMA_formatNumber(-123456789, 4, 2); //    -123.46 M
 * echo PMA_formatNumber(-0.003, 6);        //      -3 m
 * echo PMA_formatNumber(0.003, 3, 3);      //       0.003
 * echo PMA_formatNumber(0.00003, 3, 2);    //       0.03 m
 * echo PMA_formatNumber(0, 6);             //       0
 *
 * </code>
 * @param   double   $value     the value to format
 * @param   integer  $length    the max length
 * @param   integer  $comma     the number of decimals to retain
 * @param   boolean  $only_down do not reformat numbers below 1
 *
 * @return  string   the formatted value and its unit
 *
 * @access  public
 *
 * @author  staybyte, sebastian mendel
 * @version 1.1.0 - 2005-10-27
 */
function PMA_formatNumber($value, $length = 3, $comma = 0, $only_down = false)
{
    //number_format is not multibyte safe, str_replace is safe
    if ($length === 0) {
        return str_replace(array(',', '.'),
                array($GLOBALS['number_thousands_separator'], $GLOBALS['number_decimal_separator']),
                number_format($value, $comma));
    }

    // this units needs no translation, ISO
    $units = array(
        -8 => 'y',
        -7 => 'z',
        -6 => 'a',
        -5 => 'f',
        -4 => 'p',
        -3 => 'n',
        -2 => '&micro;',
        -1 => 'm',
        0 => ' ',
        1 => 'k',
        2 => 'M',
        3 => 'G',
        4 => 'T',
        5 => 'P',
        6 => 'E',
        7 => 'Z',
        8 => 'Y'
    );

    // we need at least 3 digits to be displayed
    if (3 > $length + $comma) {
        $length = 3 - $comma;
    }

    // check for negative value to retain sign
    if ($value < 0) {
        $sign = '-';
        $value = abs($value);
    } else {
        $sign = '';
    }

    $dh = PMA_pow(10, $comma);
    $li = PMA_pow(10, $length);
    $unit = $units[0];

    if ($value >= 1) {
        for ($d = 8; $d >= 0; $d--) {
            if (isset($units[$d]) && $value >= $li * PMA_pow(1000, $d-1)) {
                $value = round($value / (PMA_pow(1000, $d) / $dh)) /$dh;
                $unit = $units[$d];
                break 1;
            } // end if
        } // end for
    } elseif (!$only_down && (float) $value !== 0.0) {
        for ($d = -8; $d <= 8; $d++) {
            if (isset($units[$d]) && $value <= $li * PMA_pow(1000, $d-1)) {
                $value = round($value / (PMA_pow(1000, $d) / $dh)) /$dh;
                $unit = $units[$d];
                break 1;
            } // end if
        } // end for
    } // end if ($value >= 1) elseif (!$only_down && (float) $value !== 0.0)

    //number_format is not multibyte safe, str_replace is safe
    $value = str_replace(array(',', '.'),
                         array($GLOBALS['number_thousands_separator'], $GLOBALS['number_decimal_separator']),
                         number_format($value, $comma));

    return $sign . $value . ' ' . $unit;
} // end of the 'PMA_formatNumber' function

/**
 * Writes localised date
 *
 * @param   string   the current timestamp
 *
 * @return  string   the formatted date
 *
 * @access  public
 */
function PMA_localisedDate($timestamp = -1, $format = '')
{
    global $datefmt, $month, $day_of_week;

    if ($format == '') {
        $format = $datefmt;
    }

    if ($timestamp == -1) {
        $timestamp = time();
    }

    $date = preg_replace('@%[aA]@', $day_of_week[(int)strftime('%w', $timestamp)], $format);
    $da…