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702 lines
18 KiB
702 lines
18 KiB
<?php
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/*
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V4.55 3 Jan 2005 (c) 2000-2005 John Lim (jlim@natsoft.com.my). All rights reserved.
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Released under both BSD license and Lesser GPL library license.
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Whenever there is any discrepancy between the two licenses,
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the BSD license will take precedence.
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Set tabs to 8.
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MySQL code that does not support transactions. Use mysqlt if you need transactions.
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Requires mysql client. Works on Windows and Unix.
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28 Feb 2001: MetaColumns bug fix - suggested by Freek Dijkstra (phpeverywhere@macfreek.com)
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*/
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// security - hide paths
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if (!defined('ADODB_DIR')) die();
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if (! defined("_ADODB_MYSQL_LAYER")) {
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define("_ADODB_MYSQL_LAYER", 1 );
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class ADODB_mysql extends ADOConnection {
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var $databaseType = 'mysql';
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var $dataProvider = 'mysql';
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var $hasInsertID = true;
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var $hasAffectedRows = true;
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var $metaTablesSQL = "SHOW TABLES";
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var $metaColumnsSQL = "SHOW COLUMNS FROM %s";
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var $fmtTimeStamp = "'Y-m-d H:i:s'";
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var $hasLimit = true;
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var $hasMoveFirst = true;
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var $hasGenID = true;
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var $isoDates = true; // accepts dates in ISO format
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var $sysDate = 'CURDATE()';
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var $sysTimeStamp = 'NOW()';
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var $hasTransactions = false;
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var $forceNewConnect = false;
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var $poorAffectedRows = true;
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var $clientFlags = 0;
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var $substr = "substring";
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var $nameQuote = '`'; /// string to use to quote identifiers and names
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function ADODB_mysql()
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{
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if (defined('ADODB_EXTENSION')) $this->rsPrefix .= 'ext_';
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}
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function ServerInfo()
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{
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$arr['description'] = ADOConnection::GetOne("select version()");
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$arr['version'] = ADOConnection::_findvers($arr['description']);
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return $arr;
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}
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function IfNull( $field, $ifNull )
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{
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return " IFNULL($field, $ifNull) "; // if MySQL
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}
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function &MetaTables($ttype=false,$showSchema=false,$mask=false)
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{
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$save = $this->metaTablesSQL;
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if ($showSchema && is_string($showSchema)) {
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$this->metaTablesSQL .= " from $showSchema";
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}
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if ($mask) {
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$mask = $this->qstr($mask);
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$this->metaTablesSQL .= " like $mask";
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}
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$ret =& ADOConnection::MetaTables($ttype,$showSchema);
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$this->metaTablesSQL = $save;
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return $ret;
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}
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function &MetaIndexes ($table, $primary = FALSE, $owner=false)
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{
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// save old fetch mode
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global $ADODB_FETCH_MODE;
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$false = false;
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$save = $ADODB_FETCH_MODE;
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$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
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if ($this->fetchMode !== FALSE) {
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$savem = $this->SetFetchMode(FALSE);
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}
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// get index details
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$rs = $this->Execute(sprintf('SHOW INDEX FROM %s',$table));
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// restore fetchmode
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if (isset($savem)) {
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$this->SetFetchMode($savem);
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}
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$ADODB_FETCH_MODE = $save;
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if (!is_object($rs)) {
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return $false;
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}
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$indexes = array ();
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// parse index data into array
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while ($row = $rs->FetchRow()) {
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if ($primary == FALSE AND $row[2] == 'PRIMARY') {
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continue;
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}
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if (!isset($indexes[$row[2]])) {
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$indexes[$row[2]] = array(
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'unique' => ($row[1] == 0),
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'columns' => array()
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);
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}
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$indexes[$row[2]]['columns'][$row[3] - 1] = $row[4];
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}
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// sort columns by order in the index
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foreach ( array_keys ($indexes) as $index )
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{
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ksort ($indexes[$index]['columns']);
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}
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return $indexes;
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}
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// if magic quotes disabled, use mysql_real_escape_string()
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function qstr($s,$magic_quotes=false)
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{
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if (!$magic_quotes) {
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if (ADODB_PHPVER >= 0x4300) {
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if (is_resource($this->_connectionID))
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return "'".mysql_real_escape_string($s,$this->_connectionID)."'";
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}
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if ($this->replaceQuote[0] == '\\'){
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$s = adodb_str_replace(array('\\',"\0"),array('\\\\',"\\\0"),$s);
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}
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return "'".str_replace("'",$this->replaceQuote,$s)."'";
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}
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// undo magic quotes for "
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$s = str_replace('\\"','"',$s);
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return "'$s'";
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}
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function _insertid()
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{
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return $this->GetOne('SELECT LAST_INSERT_ID()');
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//return mysql_insert_id($this->_connectionID);
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}
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function GetOne($sql,$inputarr=false)
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{
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if (strncasecmp($sql,'sele',4) == 0) {
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$rs =& $this->SelectLimit($sql,1,-1,$inputarr);
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if ($rs) {
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$rs->Close();
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if ($rs->EOF) return false;
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return reset($rs->fields);
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}
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} else {
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return ADOConnection::GetOne($sql,$inputarr);
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}
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return false;
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}
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function BeginTrans()
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{
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if ($this->debug) ADOConnection::outp("Transactions not supported in 'mysql' driver. Use 'mysqlt' or 'mysqli' driver");
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}
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function _affectedrows()
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{
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return mysql_affected_rows($this->_connectionID);
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}
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// See http://www.mysql.com/doc/M/i/Miscellaneous_functions.html
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// Reference on Last_Insert_ID on the recommended way to simulate sequences
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var $_genIDSQL = "update %s set id=LAST_INSERT_ID(id+1);";
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var $_genSeqSQL = "create table %s (id int not null)";
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var $_genSeq2SQL = "insert into %s values (%s)";
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var $_dropSeqSQL = "drop table %s";
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function CreateSequence($seqname='adodbseq',$startID=1)
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{
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if (empty($this->_genSeqSQL)) return false;
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$u = strtoupper($seqname);
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$ok = $this->Execute(sprintf($this->_genSeqSQL,$seqname));
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if (!$ok) return false;
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return $this->Execute(sprintf($this->_genSeq2SQL,$seqname,$startID-1));
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}
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function GenID($seqname='adodbseq',$startID=1)
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{
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// post-nuke sets hasGenID to false
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if (!$this->hasGenID) return false;
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$savelog = $this->_logsql;
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$this->_logsql = false;
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$getnext = sprintf($this->_genIDSQL,$seqname);
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$holdtransOK = $this->_transOK; // save the current status
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$rs = @$this->Execute($getnext);
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if (!$rs) {
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if ($holdtransOK) $this->_transOK = true; //if the status was ok before reset
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$u = strtoupper($seqname);
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$this->Execute(sprintf($this->_genSeqSQL,$seqname));
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$this->Execute(sprintf($this->_genSeq2SQL,$seqname,$startID-1));
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$rs = $this->Execute($getnext);
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}
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$this->genID = mysql_insert_id($this->_connectionID);
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if ($rs) $rs->Close();
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$this->_logsql = $savelog;
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return $this->genID;
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}
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function &MetaDatabases()
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{
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$qid = mysql_list_dbs($this->_connectionID);
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$arr = array();
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$i = 0;
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$max = mysql_num_rows($qid);
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while ($i < $max) {
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$db = mysql_tablename($qid,$i);
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if ($db != 'mysql') $arr[] = $db;
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$i += 1;
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}
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return $arr;
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}
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// Format date column in sql string given an input format that understands Y M D
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function SQLDate($fmt, $col=false)
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{
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if (!$col) $col = $this->sysTimeStamp;
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$s = 'DATE_FORMAT('.$col.",'";
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$concat = false;
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$len = strlen($fmt);
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for ($i=0; $i < $len; $i++) {
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$ch = $fmt[$i];
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switch($ch) {
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default:
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if ($ch == '\\') {
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$i++;
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$ch = substr($fmt,$i,1);
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}
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/** FALL THROUGH */
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case '-':
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case '/':
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$s .= $ch;
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break;
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case 'Y':
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case 'y':
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$s .= '%Y';
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break;
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case 'M':
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$s .= '%b';
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break;
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case 'm':
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$s .= '%m';
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break;
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case 'D':
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case 'd':
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$s .= '%d';
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break;
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case 'Q':
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case 'q':
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$s .= "'),Quarter($col)";
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if ($len > $i+1) $s .= ",DATE_FORMAT($col,'";
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else $s .= ",('";
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$concat = true;
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break;
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case 'H':
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$s .= '%H';
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break;
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case 'h':
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$s .= '%I';
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break;
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case 'i':
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$s .= '%i';
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break;
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case 's':
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$s .= '%s';
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break;
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case 'a':
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case 'A':
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$s .= '%p';
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break;
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}
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}
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$s.="')";
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if ($concat) $s = "CONCAT($s)";
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return $s;
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}
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// returns concatenated string
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// much easier to run "mysqld --ansi" or "mysqld --sql-mode=PIPES_AS_CONCAT" and use || operator
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function Concat()
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{
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$s = "";
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$arr = func_get_args();
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// suggestion by andrew005@mnogo.ru
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$s = implode(',',$arr);
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if (strlen($s) > 0) return "CONCAT($s)";
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else return '';
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}
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function OffsetDate($dayFraction,$date=false)
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{
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if (!$date) $date = $this->sysDate;
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return "from_unixtime(unix_timestamp($date)+($dayFraction)*24*3600)";
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}
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// returns true or false
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function _connect($argHostname, $argUsername, $argPassword, $argDatabasename)
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{
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if (ADODB_PHPVER >= 0x4300)
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$this->_connectionID = mysql_connect($argHostname,$argUsername,$argPassword,
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$this->forceNewConnect,$this->clientFlags);
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else if (ADODB_PHPVER >= 0x4200)
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$this->_connectionID = mysql_connect($argHostname,$argUsername,$argPassword,
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$this->forceNewConnect);
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else
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$this->_connectionID = mysql_connect($argHostname,$argUsername,$argPassword);
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if ($this->_connectionID === false) return false;
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if ($argDatabasename) return $this->SelectDB($argDatabasename);
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return true;
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}
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// returns true or false
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function _pconnect($argHostname, $argUsername, $argPassword, $argDatabasename)
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{
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if (ADODB_PHPVER >= 0x4300)
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$this->_connectionID = mysql_pconnect($argHostname,$argUsername,$argPassword,$this->clientFlags);
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else
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$this->_connectionID = mysql_pconnect($argHostname,$argUsername,$argPassword);
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if ($this->_connectionID === false) return false;
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if ($this->autoRollback) $this->RollbackTrans();
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if ($argDatabasename) return $this->SelectDB($argDatabasename);
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return true;
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}
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function _nconnect($argHostname, $argUsername, $argPassword, $argDatabasename)
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{
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$this->forceNewConnect = true;
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return $this->_connect($argHostname, $argUsername, $argPassword, $argDatabasename);
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}
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function &MetaColumns($table)
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{
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global $ADODB_FETCH_MODE;
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$save = $ADODB_FETCH_MODE;
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$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
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if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false);
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$rs = $this->Execute(sprintf($this->metaColumnsSQL,$table));
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if (isset($savem)) $this->SetFetchMode($savem);
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$ADODB_FETCH_MODE = $save;
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if (!is_object($rs)) {
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$false = false;
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return $false;
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}
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$retarr = array();
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while (!$rs->EOF){
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$fld = new ADOFieldObject();
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$fld->name = $rs->fields[0];
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$type = $rs->fields[1];
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// split type into type(length):
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$fld->scale = null;
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if (preg_match("/^(.+)\((\d+),(\d+)/", $type, $query_array)) {
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$fld->type = $query_array[1];
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$fld->max_length = is_numeric($query_array[2]) ? $query_array[2] : -1;
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$fld->scale = is_numeric($query_array[3]) ? $query_array[3] : -1;
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} elseif (preg_match("/^(.+)\((\d+)/", $type, $query_array)) {
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$fld->type = $query_array[1];
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$fld->max_length = is_numeric($query_array[2]) ? $query_array[2] : -1;
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} else {
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$fld->type = $type;
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$fld->max_length = -1;
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}
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$fld->not_null = ($rs->fields[2] != 'YES');
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$fld->primary_key = ($rs->fields[3] == 'PRI');
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$fld->auto_increment = (strpos($rs->fields[5], 'auto_increment') !== false);
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$fld->binary = (strpos($type,'blob') !== false);
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$fld->unsigned = (strpos($type,'unsigned') !== false);
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if (!$fld->binary) {
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$d = $rs->fields[4];
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if ($d != '' && $d != 'NULL') {
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$fld->has_default = true;
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$fld->default_value = $d;
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} else {
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$fld->has_default = false;
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}
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}
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if ($save == ADODB_FETCH_NUM) {
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$retarr[] = $fld;
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} else {
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$retarr[strtoupper($fld->name)] = $fld;
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}
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$rs->MoveNext();
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}
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$rs->Close();
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return $retarr;
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}
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// returns true or false
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function SelectDB($dbName)
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{
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$this->databaseName = $dbName;
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if ($this->_connectionID) {
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return @mysql_select_db($dbName,$this->_connectionID);
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}
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else return false;
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}
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// parameters use PostgreSQL convention, not MySQL
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function &SelectLimit($sql,$nrows=-1,$offset=-1,$inputarr=false,$secs=0)
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{
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$offsetStr =($offset>=0) ? "$offset," : '';
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// jason judge, see http://phplens.com/lens/lensforum/msgs.php?id=9220
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if ($nrows < 0) $nrows = '18446744073709551615';
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if ($secs)
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$rs =& $this->CacheExecute($secs,$sql." LIMIT $offsetStr$nrows",$inputarr);
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else
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$rs =& $this->Execute($sql." LIMIT $offsetStr$nrows",$inputarr);
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return $rs;
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}
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// returns queryID or false
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function _query($sql,$inputarr)
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{
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//global $ADODB_COUNTRECS;
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//if($ADODB_COUNTRECS)
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return mysql_query($sql,$this->_connectionID);
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//else return @mysql_unbuffered_query($sql,$this->_connectionID); // requires PHP >= 4.0.6
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}
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/* Returns: the last error message from previous database operation */
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function ErrorMsg()
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{
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if ($this->_logsql) return $this->_errorMsg;
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if (empty($this->_connectionID)) $this->_errorMsg = @mysql_error();
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else $this->_errorMsg = @mysql_error($this->_connectionID);
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return $this->_errorMsg;
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}
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/* Returns: the last error number from previous database operation */
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function ErrorNo()
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{
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if ($this->_logsql) return $this->_errorCode;
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if (empty($this->_connectionID)) return @mysql_errno();
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else return @mysql_errno($this->_connectionID);
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}
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// returns true or false
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function _close()
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{
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@mysql_close($this->_connectionID);
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$this->_connectionID = false;
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}
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/*
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* Maximum size of C field
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*/
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function CharMax()
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{
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return 255;
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}
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/*
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* Maximum size of X field
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*/
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function TextMax()
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{
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return 4294967295;
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}
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}
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/*--------------------------------------------------------------------------------------
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Class Name: Recordset
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--------------------------------------------------------------------------------------*/
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class ADORecordSet_mysql extends ADORecordSet{
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var $databaseType = "mysql";
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var $canSeek = true;
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function ADORecordSet_mysql($queryID,$mode=false)
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{
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if ($mode === false) {
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global $ADODB_FETCH_MODE;
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$mode = $ADODB_FETCH_MODE;
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}
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switch ($mode)
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{
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case ADODB_FETCH_NUM: $this->fetchMode = MYSQL_NUM; break;
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case ADODB_FETCH_ASSOC:$this->fetchMode = MYSQL_ASSOC; break;
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case ADODB_FETCH_DEFAULT:
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case ADODB_FETCH_BOTH:
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default:
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$this->fetchMode = MYSQL_BOTH; break;
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}
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|
$this->adodbFetchMode = $mode;
|
|
$this->ADORecordSet($queryID);
|
|
}
|
|
|
|
function _initrs()
|
|
{
|
|
//GLOBAL $ADODB_COUNTRECS;
|
|
// $this->_numOfRows = ($ADODB_COUNTRECS) ? @mysql_num_rows($this->_queryID):-1;
|
|
$this->_numOfRows = @mysql_num_rows($this->_queryID);
|
|
$this->_numOfFields = @mysql_num_fields($this->_queryID);
|
|
}
|
|
|
|
function &FetchField($fieldOffset = -1)
|
|
{
|
|
if ($fieldOffset != -1) {
|
|
$o = @mysql_fetch_field($this->_queryID, $fieldOffset);
|
|
$f = @mysql_field_flags($this->_queryID,$fieldOffset);
|
|
$o->max_length = @mysql_field_len($this->_queryID,$fieldOffset); // suggested by: Jim Nicholson (jnich@att.com)
|
|
//$o->max_length = -1; // mysql returns the max length less spaces -- so it is unrealiable
|
|
$o->binary = (strpos($f,'binary')!== false);
|
|
}
|
|
else if ($fieldOffset == -1) { /* The $fieldOffset argument is not provided thus its -1 */
|
|
$o = @mysql_fetch_field($this->_queryID);
|
|
$o->max_length = @mysql_field_len($this->_queryID); // suggested by: Jim Nicholson (jnich@att.com)
|
|
//$o->max_length = -1; // mysql returns the max length less spaces -- so it is unrealiable
|
|
}
|
|
|
|
return $o;
|
|
}
|
|
|
|
function &GetRowAssoc($upper=true)
|
|
{
|
|
if ($this->fetchMode == MYSQL_ASSOC && !$upper) return $this->fields;
|
|
$row =& ADORecordSet::GetRowAssoc($upper);
|
|
return $row;
|
|
}
|
|
|
|
/* Use associative array to get fields array */
|
|
function Fields($colname)
|
|
{
|
|
// added @ by "Michael William Miller" <mille562@pilot.msu.edu>
|
|
if ($this->fetchMode != MYSQL_NUM) return @$this->fields[$colname];
|
|
|
|
if (!$this->bind) {
|
|
$this->bind = array();
|
|
for ($i=0; $i < $this->_numOfFields; $i++) {
|
|
$o = $this->FetchField($i);
|
|
$this->bind[strtoupper($o->name)] = $i;
|
|
}
|
|
}
|
|
return $this->fields[$this->bind[strtoupper($colname)]];
|
|
}
|
|
|
|
function _seek($row)
|
|
{
|
|
if ($this->_numOfRows == 0) return false;
|
|
return @mysql_data_seek($this->_queryID,$row);
|
|
}
|
|
|
|
function MoveNext()
|
|
{
|
|
//return adodb_movenext($this);
|
|
//if (defined('ADODB_EXTENSION')) return adodb_movenext($this);
|
|
if (@$this->fields =& mysql_fetch_array($this->_queryID,$this->fetchMode)) {
|
|
$this->_currentRow += 1;
|
|
return true;
|
|
}
|
|
if (!$this->EOF) {
|
|
$this->_currentRow += 1;
|
|
$this->EOF = true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function _fetch()
|
|
{
|
|
$this->fields = @mysql_fetch_array($this->_queryID,$this->fetchMode);
|
|
return is_array($this->fields);
|
|
}
|
|
|
|
function _close() {
|
|
@mysql_free_result($this->_queryID);
|
|
$this->_queryID = false;
|
|
}
|
|
|
|
function MetaType($t,$len=-1,$fieldobj=false)
|
|
{
|
|
if (is_object($t)) {
|
|
$fieldobj = $t;
|
|
$t = $fieldobj->type;
|
|
$len = $fieldobj->max_length;
|
|
}
|
|
|
|
$len = -1; // mysql max_length is not accurate
|
|
switch (strtoupper($t)) {
|
|
case 'STRING':
|
|
case 'CHAR':
|
|
case 'VARCHAR':
|
|
case 'TINYBLOB':
|
|
case 'TINYTEXT':
|
|
case 'ENUM':
|
|
case 'SET':
|
|
if ($len <= $this->blobSize) return 'C';
|
|
|
|
case 'TEXT':
|
|
case 'LONGTEXT':
|
|
case 'MEDIUMTEXT':
|
|
return 'X';
|
|
|
|
// php_mysql extension always returns 'blob' even if 'text'
|
|
// so we have to check whether binary...
|
|
case 'IMAGE':
|
|
case 'LONGBLOB':
|
|
case 'BLOB':
|
|
case 'MEDIUMBLOB':
|
|
return !empty($fieldobj->binary) ? 'B' : 'X';
|
|
|
|
case 'YEAR':
|
|
case 'DATE': return 'D';
|
|
|
|
case 'TIME':
|
|
case 'DATETIME':
|
|
case 'TIMESTAMP': return 'T';
|
|
|
|
case 'INT':
|
|
case 'INTEGER':
|
|
case 'BIGINT':
|
|
case 'TINYINT':
|
|
case 'MEDIUMINT':
|
|
case 'SMALLINT':
|
|
|
|
if (!empty($fieldobj->primary_key)) return 'R';
|
|
else return 'I';
|
|
|
|
default: return 'N';
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
class ADORecordSet_ext_mysql extends ADORecordSet_mysql {
|
|
function ADORecordSet_ext_mysql($queryID,$mode=false)
|
|
{
|
|
if ($mode === false) {
|
|
global $ADODB_FETCH_MODE;
|
|
$mode = $ADODB_FETCH_MODE;
|
|
}
|
|
switch ($mode)
|
|
{
|
|
case ADODB_FETCH_NUM: $this->fetchMode = MYSQL_NUM; break;
|
|
case ADODB_FETCH_ASSOC:$this->fetchMode = MYSQL_ASSOC; break;
|
|
case ADODB_FETCH_DEFAULT:
|
|
case ADODB_FETCH_BOTH:
|
|
default:
|
|
$this->fetchMode = MYSQL_BOTH; break;
|
|
}
|
|
$this->adodbFetchMode = $mode;
|
|
$this->ADORecordSet($queryID);
|
|
}
|
|
|
|
function MoveNext()
|
|
{
|
|
return @adodb_movenext($this);
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
?>
|