413 lines
13 KiB
PHP
413 lines
13 KiB
PHP
<?php
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/*
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+--------------------------------------------------------------------------
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| Invision Power Board v1.3.1 Final
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| ========================================
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| by Matthew Mecham
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| (c) 2001 - 2003 Invision Power Services
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| http://www.invisionpower.com
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| ========================================
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| Web: http://www.invisionboard.com
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| Time: Thu, 23 Sep 2004 23:05:01 GMT
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| Release: 3cb325c445e1909182084806ae7f8226
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| Email: matt@invisionpower.com
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| Licence Info: http://www.invisionboard.com/?license
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+---------------------------------------------------------------------------
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| > mySQL DB abstraction module
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| > Module written by Matt Mecham
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| > Date started: 14th February 2002
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| > Module Version Number: 1.0.0
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+--------------------------------------------------------------------------
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*/
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class db_driver {
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var $obj = array ( "sql_database" => "" ,
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"sql_user" => "root" ,
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"sql_pass" => "" ,
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"sql_host" => "localhost",
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"sql_port" => "" ,
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"persistent" => "0" ,
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"sql_tbl_prefix" => "ibf_" ,
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"cached_queries" => array(),
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'debug' => 0,
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);
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var $query_id = "";
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var $connection_id = "";
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var $query_count = 0;
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var $record_row = array();
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var $return_die = 0;
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var $error = "";
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var $failed = 0;
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/*========================================================================*/
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// Connect to the database
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/*========================================================================*/
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function connect() {
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if ($this->obj['persistent'])
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{
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$this->connection_id = mysql_pconnect( $this->obj['sql_host'] ,
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$this->obj['sql_user'] ,
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$this->obj['sql_pass']
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);
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}
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else
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{
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$this->connection_id = mysql_connect( $this->obj['sql_host'] ,
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$this->obj['sql_user'] ,
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$this->obj['sql_pass']
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);
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}
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if ( !mysql_select_db($this->obj['sql_database'], $this->connection_id) )
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{
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echo ("ERROR: Cannot find database ".$this->obj['sql_database']);
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}
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}
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/*========================================================================*/
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// Process a query
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/*========================================================================*/
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function query($the_query, $bypass=0) {
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//--------------------------------------
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// Change the table prefix if needed
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//--------------------------------------
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if ($bypass != 1)
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{
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if ($this->obj['sql_tbl_prefix'] != "ibf_")
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{
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$the_query = preg_replace("/ibf_(\S+?)([\s\.,]|$)/", $this->obj['sql_tbl_prefix']."\\1\\2", $the_query);
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}
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}
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if ($this->obj['debug'])
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{
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global $Debug, $ibforums;
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$Debug->startTimer();
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}
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$this->query_id = mysql_query($the_query, $this->connection_id);
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if (! $this->query_id )
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{
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$this->fatal_error("mySQL query error: $the_query");
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}
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if ($this->obj['debug'])
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{
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$endtime = $Debug->endTimer();
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if ( preg_match( "/^select/i", $the_query ) )
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{
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$eid = mysql_query("EXPLAIN $the_query", $this->connection_id);
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$ibforums->debug_html .= "<table width='95%' border='1' cellpadding='6' cellspacing='0' bgcolor='#FFE8F3' align='center'>
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<tr>
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<td colspan='8' style='font-size:14px' bgcolor='#FFC5Cb'><b>Select Query</b></td>
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</tr>
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<tr>
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<td colspan='8' style='font-family:courier, monaco, arial;font-size:14px;color:black'>$the_query</td>
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</tr>
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<tr bgcolor='#FFC5Cb'>
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<td><b>table</b></td><td><b>type</b></td><td><b>possible_keys</b></td>
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<td><b>key</b></td><td><b>key_len</b></td><td><b>ref</b></td>
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<td><b>rows</b></td><td><b>Extra</b></td>
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</tr>\n";
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while( $array = mysql_fetch_array($eid) )
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{
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$type_col = '#FFFFFF';
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if ($array['type'] == 'ref' or $array['type'] == 'eq_ref' or $array['type'] == 'const')
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{
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$type_col = '#D8FFD4';
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}
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else if ($array['type'] == 'ALL')
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{
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$type_col = '#FFEEBA';
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}
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$ibforums->debug_html .= "<tr bgcolor='#FFFFFF'>
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<td>$array[table] </td>
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<td bgcolor='$type_col'>$array[type] </td>
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<td>$array[possible_keys] </td>
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<td>$array[key] </td>
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<td>$array[key_len] </td>
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<td>$array[ref] </td>
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<td>$array[rows] </td>
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<td>$array[Extra] </td>
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</tr>\n";
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}
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if ($endtime > 0.1)
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{
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$endtime = "<span style='color:red'><b>$endtime</b></span>";
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}
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$ibforums->debug_html .= "<tr>
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<td colspan='8' bgcolor='#FFD6DC' style='font-size:14px'><b>mySQL time</b>: $endtime</b></td>
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</tr>
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</table>\n<br />\n";
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}
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else
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{
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$ibforums->debug_html .= "<table width='95%' border='1' cellpadding='6' cellspacing='0' bgcolor='#FEFEFE' align='center'>
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<tr>
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<td style='font-size:14px' bgcolor='#EFEFEF'><b>Non Select Query</b></td>
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</tr>
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<tr>
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<td style='font-family:courier, monaco, arial;font-size:14px'>$the_query</td>
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</tr>
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<tr>
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<td style='font-size:14px' bgcolor='#EFEFEF'><b>mySQL time</b>: $endtime</span></td>
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</tr>
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</table><br />\n\n";
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}
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}
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$this->query_count++;
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$this->obj['cached_queries'][] = $the_query;
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return $this->query_id;
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}
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/*========================================================================*/
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// Fetch a row based on the last query
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/*========================================================================*/
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function fetch_row($query_id = "") {
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if ($query_id == "")
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{
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$query_id = $this->query_id;
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}
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$this->record_row = mysql_fetch_array($query_id, MYSQL_ASSOC);
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return $this->record_row;
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}
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/*========================================================================*/
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// Fetch the number of rows affected by the last query
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/*========================================================================*/
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function get_affected_rows() {
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return mysql_affected_rows($this->connection_id);
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}
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/*========================================================================*/
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// Fetch the number of rows in a result set
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/*========================================================================*/
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function get_num_rows() {
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return mysql_num_rows($this->query_id);
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}
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/*========================================================================*/
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// Fetch the last insert id from an sql autoincrement
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/*========================================================================*/
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function get_insert_id() {
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return mysql_insert_id($this->connection_id);
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}
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/*========================================================================*/
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// Return the amount of queries used
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/*========================================================================*/
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function get_query_cnt() {
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return $this->query_count;
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}
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/*========================================================================*/
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// Free the result set from mySQLs memory
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/*========================================================================*/
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function free_result($query_id="") {
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if ($query_id == "") {
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$query_id = $this->query_id;
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}
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@mysql_free_result($query_id);
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}
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/*========================================================================*/
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// Shut down the database
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/*========================================================================*/
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function close_db() {
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return mysql_close($this->connection_id);
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}
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/*========================================================================*/
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// Return an array of tables
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/*========================================================================*/
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function get_table_names() {
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$result = mysql_list_tables($this->obj['sql_database']);
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$num_tables = @mysql_numrows($result);
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for ($i = 0; $i < $num_tables; $i++)
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{
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$tables[] = mysql_tablename($result, $i);
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}
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mysql_free_result($result);
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return $tables;
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}
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/*========================================================================*/
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// Return an array of fields
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/*========================================================================*/
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function get_result_fields($query_id="") {
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if ($query_id == "")
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{
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$query_id = $this->query_id;
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}
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while ($field = mysql_fetch_field($query_id))
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{
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$Fields[] = $field;
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}
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//mysql_free_result($query_id);
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return $Fields;
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}
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/*========================================================================*/
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// Basic error handler
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/*========================================================================*/
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function fatal_error($the_error) {
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global $INFO;
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// Are we simply returning the error?
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if ($this->return_die == 1)
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{
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$this->error = mysql_error();
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$this->error_no = mysql_errno();
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$this->failed = 1;
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return;
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}
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$the_error .= "\n\nmySQL error: ".mysql_error()."\n";
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$the_error .= "mySQL error code: ".$this->error_no."\n";
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$the_error .= "Date: ".date("l dS of F Y h:i:s A");
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$out = "<html><head><title>Invision Power Board Database Error</title>
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<style>P,BODY{ font-family:arial,sans-serif; font-size:11px; }</style></head><body>
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<br><br><blockquote><b>There appears to be an error with the {$INFO['board_name']} database.</b><br>
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You can try to refresh the page by clicking <a href=\"javascript:window.location=window.location;\">here</a>, if this
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does not fix the error, you can contact the board administrator by clicking <a href='mailto:{$INFO['email_in']}?subject=SQL+Error'>here</a>
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<br><br><b>Error Returned</b><br>
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<form name='mysql'><textarea rows=\"15\" cols=\"60\">".htmlspecialchars($the_error)."</textarea></form><br>We apologise for any inconvenience</blockquote></body></html>";
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echo($out);
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die("");
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}
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/*========================================================================*/
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// Create an array from a multidimensional array returning formatted
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// strings ready to use in an INSERT query, saves having to manually format
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// the (INSERT INTO table) ('field', 'field', 'field') VALUES ('val', 'val')
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/*========================================================================*/
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function compile_db_insert_string($data) {
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$field_names = "";
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$field_values = "";
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foreach ($data as $k => $v)
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{
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$v = preg_replace( "/'/", "\\'", $v );
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//$v = preg_replace( "/#/", "\\#", $v );
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$field_names .= "$k,";
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$field_values .= "'$v',";
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}
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$field_names = preg_replace( "/,$/" , "" , $field_names );
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$field_values = preg_replace( "/,$/" , "" , $field_values );
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return array( 'FIELD_NAMES' => $field_names,
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'FIELD_VALUES' => $field_values,
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);
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}
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/*========================================================================*/
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// Create an array from a multidimensional array returning a formatted
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// string ready to use in an UPDATE query, saves having to manually format
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// the FIELD='val', FIELD='val', FIELD='val'
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/*========================================================================*/
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function compile_db_update_string($data) {
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$return_string = "";
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foreach ($data as $k => $v)
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{
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$v = preg_replace( "/'/", "\\'", $v );
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$return_string .= $k . "='".$v."',";
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}
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$return_string = preg_replace( "/,$/" , "" , $return_string );
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return $return_string;
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}
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/*========================================================================*/
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// Test to see if a field exists by forcing and trapping an error.
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// It ain't pretty, but it do the job don't it, eh?
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// Posh my ass.
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// Return 1 for exists, 0 for not exists and jello for the naked guy
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// Fun fact: The number of times I spelt 'field' as 'feild'in this part: 104
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/*========================================================================*/
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function field_exists($field, $table) {
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$this->return_die = 1;
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$this->error = "";
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$this->query("SELECT COUNT($field) as count FROM $table");
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$return = 1;
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if ( $this->failed )
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{
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$return = 0;
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}
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$this->error = "";
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$this->return_die = 0;
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$this->error_no = 0;
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$this->failed = 0;
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return $return;
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}
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} // end class
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?>
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