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408 lines
8.9 KiB
PHP
408 lines
8.9 KiB
PHP
<?php
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/***************************************************************************
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* mysql.php
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* -------------------
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* begin : Saturday, Feb 13, 2001
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* copyright : (C) 2001 The phpBB Group
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* email : support@phpbb.com
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*
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* $Id$
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*
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***************************************************************************/
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/***************************************************************************
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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***************************************************************************/
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if ( !defined('SQL_LAYER') )
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{
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define('SQL_LAYER', 'mysql4');
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class sql_db
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{
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var $db_connect_id;
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var $query_result;
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var $return_on_error = false;
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var $transaction = false;
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var $sql_report = '';
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var $sql_time = 0;
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//
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// Constructor
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//
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function sql_db($sqlserver, $sqluser, $sqlpassword, $database, $port, $persistency = false)
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{
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$this->open_queries = array();
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$this->num_queries = 0;
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$this->persistency = $persistency;
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$this->user = $sqluser;
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$this->password = $sqlpassword;
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$this->server = $sqlserver . ( ( $port ) ? ':' . $port : '' );
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$this->dbname = $database;
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$this->db_connect_id = ( $this->persistency ) ? @mysql_pconnect($this->server, $this->user, $this->password) : @mysql_connect($this->server, $this->user, $this->password);
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if ( $this->db_connect_id && $this->dbname != '')
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{
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if ( @mysql_select_db($this->dbname) )
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{
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return $this->db_connect_id;
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}
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}
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$this->sql_error('');
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}
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//
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// Other base methods
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//
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function sql_close()
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{
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if (!$this->db_connect_id)
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{
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return false;
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}
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if (count($this->open_queries))
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{
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foreach ($this->open_queries as $query_id)
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{
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@mysql_free_result($query_id);
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}
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}
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return @mysql_close($this->db_connect_id);
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}
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function sql_return_on_error($fail = false)
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{
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$this->return_on_error = $fail;
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}
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function sql_num_queries()
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{
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return $this->num_queries;
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}
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function sql_transaction($status = 'begin')
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{
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switch ( $status )
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{
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case 'begin':
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$this->transaction = true;
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$result = mysql_query('BEGIN', $this->db_connect_id);
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break;
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case 'commit':
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$this->transaction = false;
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$result = mysql_query('COMMIT', $this->db_connect_id);
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break;
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case 'rollback':
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$this->transaction = false;
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$result = mysql_query('ROLLBACK', $this->db_connect_id);
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break;
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default:
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$result = true;
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}
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return $result;
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}
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//
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// Base query method
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//
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function sql_query($query = '')
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{
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if ($query != '')
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{
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$this->query_result = false;
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$this->num_queries++;
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if (!empty($_REQUEST['explain']))
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{
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global $starttime;
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$curtime = explode(' ', microtime());
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$curtime = $curtime[0] + $curtime[1] - $starttime;
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}
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if (!$this->query_result = @mysql_query($query, $this->db_connect_id))
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{
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$this->sql_error($query);
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}
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if (!empty($_REQUEST['explain']))
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{
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$endtime = explode(' ', microtime());
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$endtime = $endtime[0] + $endtime[1] - $starttime;
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$this->sql_report .= "<pre>Query:\t" . htmlspecialchars(preg_replace('/[\s]*[\n\r\t]+[\n\r\s\t]*/', "\n\t", $query)) . "\n\n";
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if ($this->query_result)
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{
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$this->sql_report .= "Time before: $curtime\nTime after: $endtime\nElapsed time: <b>" . ($endtime - $curtime) . "</b>\n</pre>";
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}
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else
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{
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$error = $this->sql_error();
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$this->sql_report .= '<b>FAILED</b> - MySQL Error ' . $error['code'] . ': ' . htmlspecialchars($error['message']) . '<br><br><pre>';
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}
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$this->sql_time += $endtime - $curtime;
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if (preg_match('/^SELECT/', $query))
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{
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$html_table = FALSE;
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if ($result = mysql_query("EXPLAIN $query", $this->db_connect_id))
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{
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while ($row = mysql_fetch_assoc($result))
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{
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if (!$html_table && count($row))
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{
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$html_table = TRUE;
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$this->sql_report .= "<table width=100% border=1 cellpadding=2 cellspacing=1>\n";
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$this->sql_report .= "<tr>\n<td><b>" . implode("</b></td>\n<td><b>", array_keys($row)) . "</b></td>\n</tr>\n";
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}
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$this->sql_report .= "<tr>\n<td>" . implode(" </td>\n<td>", array_values($row)) . " </td>\n</tr>\n";
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}
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}
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if ($html_table)
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{
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$this->sql_report .= '</table><br>';
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}
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}
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$this->sql_report .= "<hr>\n";
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}
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$this->open_queries[] = $this->query_result;
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}
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else
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{
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return false;
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}
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return ( $this->query_result) ? $this->query_result : false;
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}
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function sql_query_limit($query = '', $total, $offset = 0)
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{
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if ( $query != '' )
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{
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$this->query_result = false;
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$this->num_queries++;
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if ( !empty($total) )
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{
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$query .= ' LIMIT ' . ( ( !empty($offset) ) ? $offset . ', ' . $total : $total );
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}
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return $this->sql_query($query);
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}
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else
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{
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return false;
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}
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}
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// Idea for this from Ikonboard
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function sql_build_array($query, $assoc_ary = false)
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{
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if (!is_array($assoc_ary))
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{
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return false;
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}
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$fields = array();
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$values = array();
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if ($query == 'INSERT')
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{
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foreach ($assoc_ary as $key => $var)
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{
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$fields[] = $key;
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if (is_null($var))
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{
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$values[] = 'NULL';
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}
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elseif (is_string($var))
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{
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$values[] = "'" . str_replace('\\\'', '\'\'', $var) . "'";
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}
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else
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{
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$values[] = (is_bool($var)) ? intval($var) : $var;
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}
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}
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$query = ' (' . implode(', ', $fields) . ') VALUES (' . implode(', ', $values) . ')';
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}
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else if ($query == 'UPDATE')
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{
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$values = array();
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foreach ($assoc_ary as $key => $var)
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{
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if (is_null($var))
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{
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$values[] = "$key = NULL";
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}
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elseif (is_string($var))
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{
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$values[] = "$key = '" . str_replace('\\\'', '\'\'', $var) . "'";
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}
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else
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{
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$values[] = (is_bool($var)) ? "$key = " . intval($var) : "$key = $var";
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}
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}
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$query = implode(', ', $values);
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}
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return $query;
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}
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//
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// Other query methods
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//
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// NOTE :: Want to remove _ALL_ reliance on sql_numrows from core code ...
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// don't want this here by a middle Milestone
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//
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function sql_numrows($query_id = false)
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{
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if ( !$query_id )
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{
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$query_id = $this->query_result;
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}
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return ( $query_id ) ? @mysql_num_rows($query_id) : false;
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}
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function sql_affectedrows()
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{
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return ( $this->db_connect_id ) ? @mysql_affected_rows($this->db_connect_id) : false;
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}
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function sql_fetchrow($query_id = 0)
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{
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if ( !$query_id )
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{
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$query_id = $this->query_result;
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}
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return ( $query_id ) ? @mysql_fetch_assoc($query_id) : false;
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}
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function sql_fetchrowset($query_id = 0)
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{
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if(!$query_id)
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{
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$query_id = $this->query_result;
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}
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if($query_id)
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{
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unset($this->rowset[$query_id]);
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unset($this->row[$query_id]);
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while($this->rowset[$query_id] = @mysql_fetch_assoc($query_id))
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{
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$result[] = $this->rowset[$query_id];
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}
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return $result;
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}
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else
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{
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return false;
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}
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}
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function sql_fetchfield($field, $rownum = -1, $query_id = 0)
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{
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if(!$query_id)
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{
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$query_id = $this->query_result;
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}
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if($query_id)
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{
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if($rownum > -1)
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{
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$result = @mysql_result($query_id, $rownum, $field);
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}
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else
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{
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if(empty($this->row[$query_id]) && empty($this->rowset[$query_id]))
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{
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if($this->sql_fetchrow())
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{
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$result = $this->row[$query_id][$field];
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}
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}
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else
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{
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if($this->rowset[$query_id])
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{
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$result = $this->rowset[$query_id][$field];
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}
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else if($this->row[$query_id])
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{
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$result = $this->row[$query_id][$field];
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}
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}
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}
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return $result;
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}
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else
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{
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return false;
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}
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}
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function sql_rowseek($rownum, $query_id = 0)
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{
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if ( !$query_id )
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{
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$query_id = $this->query_result;
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}
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return ( $query_id ) ? @mysql_data_seek($query_id, $rownum) : false;
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}
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function sql_nextid()
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{
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return ( $this->db_connect_id ) ? @mysql_insert_id($this->db_connect_id) : false;
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}
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function sql_freeresult($query_id = false)
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{
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if ( !$query_id )
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{
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$query_id = $this->query_result;
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}
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return ( $query_id ) ? @mysql_free_result($query_id) : false;
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}
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function sql_error($sql = '')
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{
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if ( !$this->return_on_error )
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{
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if ( $this->transaction )
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{
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$this->sql_transaction(ROLLBACK);
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}
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$this_page = ( !empty($_SERVER['PHP_SELF']) ) ? $_SERVER['PHP_SELF'] : $_ENV['PHP_SELF'];
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$this_page .= '&' . ( ( !empty($_SERVER['QUERY_STRING']) ) ? $_SERVER['QUERY_STRING'] : $_ENV['QUERY_STRING'] );
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$message = '<u>SQL ERROR</u> [ ' . SQL_LAYER . ' ]<br /><br />' . @mysql_error() . '<br /><br /><u>CALLING PAGE</u><br /><br />' . $this_page . ( ( $sql != '' ) ? '<br /><br /><u>SQL</u><br /><br />' . $sql : '' ) . '<br />';
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trigger_error($message, E_USER_ERROR);
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}
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$result['message'] = @mysql_error();
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$result['code'] = @mysql_errno();
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return $result;
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}
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} // class sql_db
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} // if ... define
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?>
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