این تابع رو ببینید:
function &ADONewConnection($db='')
{
GLOBAL $ADODB_NEWCONNECTION, $ADODB_LASTDB;
if (!defined('ADODB_ASSOC_CASE')) define('ADODB_ASSOC_CASE',2);
$errorfn = (defined('ADODB_ERROR_HANDLER')) ? ADODB_ERROR_HANDLER : false;
$false = false;
if ($at = strpos($db,'://')) {
$origdsn = $db;
if (PHP_VERSION < 5) $dsna = @parse_url($db);
else {
$fakedsn = 'fake'.substr($db,$at);
$dsna = @parse_url($fakedsn);
$dsna['scheme'] = substr($db,0,$at);
if (strncmp($db,'pdo',3) == 0) {
$sch = explode('_',$dsna['scheme']);
if (sizeof($sch)>1) {
$dsna['host'] = isset($dsna['host']) ? rawurldecode($dsna['host']) : '';
$dsna['host'] = rawurlencode($sch[1].':host='.rawurldecode($dsna['host']));
$dsna['scheme'] = 'pdo';
}
}
}
die( var_dump($dsna) . __LINE__ ); //////////////////////////////////////////////
if (!$dsna) {
// special handling of oracle, which might not have host
$db = str_replace('@/','@adodb-fakehost/',$db);
$dsna = parse_url($db);
if (!$dsna) return $false;
$dsna['host'] = '';
}
die( var_dump($dsna) . __LINE__ ); //////////////////////////////////////////////
$db = @$dsna['scheme'];
if (!$db) return $false;
$dsna['host'] = isset($dsna['host']) ? rawurldecode($dsna['host']) : '';
$dsna['user'] = isset($dsna['user']) ? rawurldecode($dsna['user']) : '';
$dsna['pass'] = isset($dsna['pass']) ? rawurldecode($dsna['pass']) : '';
$dsna['path'] = isset($dsna['path']) ? rawurldecode(substr($dsna['path'],1)) : ''; # strip off initial /
if (isset($dsna['query'])) {
$opt1 = explode('&',$dsna['query']);
foreach($opt1 as $k => $v) {
$arr = explode('=',$v);
$opt[$arr[0]] = isset($arr[1]) ? rawurldecode($arr[1]) : 1;
}
} else $opt = array();
}
/*
* phptype: Database backend used in PHP (mysql, odbc etc.)
* dbsyntax: Database used with regards to SQL syntax etc.
* protocol: Communication protocol to use (tcp, unix etc.)
* hostspec: Host specification (hostname[:port])
* database: Database to use on the DBMS server
* username: User name for login
* password: Password for login
*/
if (!empty($ADODB_NEWCONNECTION)) {
$obj = $ADODB_NEWCONNECTION($db);
die( var_dump($obj) . __LINE__ ); //////////////////////////////////////////////
} else {
if (!isset($ADODB_LASTDB)) $ADODB_LASTDB = '';
if (empty($db)) $db = $ADODB_LASTDB;
if ($db != $ADODB_LASTDB) $db = ADOLoadCode($db);
die( var_dump($db) . __LINE__ ); //////////////////////////////////////////////
if (!$db) {
if (isset($origdsn)) $db = $origdsn;
if ($errorfn) {
// raise an error
$ignore = false;
$errorfn('ADONewConnection', 'ADONewConnection', -998,
"could not load the database driver for '$db'",
$db,false,$ignore);
} else
ADOConnection::outp( "<p>ADONewConnection: Unable to load database driver '$db'</p>",false);
return $false;
}
$cls = 'ADODB_'.$db;
if (!class_exists($cls)) {
adodb_backtrace();
die( "CLASS NOT EXISTS " . __LINE__ ); //////////////////////////////////////////////
return $false;
}
$obj = new $cls();
}
die( var_dump($obj) . __LINE__ ); //////////////////////////////////////////////
# constructor should not fail
if ($obj) {
if ($errorfn) $obj->raiseErrorFn = $errorfn;
if (isset($dsna)) {
if (isset($dsna['port'])) $obj->port = $dsna['port'];
foreach($opt as $k => $v) {
switch(strtolower($k)) {
case 'new':
$nconnect = true; $persist = true; break;
case 'persist':
case 'persistent': $persist = $v; break;
case 'debug': $obj->debug = (integer) $v; break;
#ibase
case 'role': $obj->role = $v; break;
case 'dialect': $obj->dialect = (integer) $v; break;
case 'charset': $obj->charset = $v; $obj->charSet=$v; break;
case 'buffers': $obj->buffers = $v; break;
case 'fetchmode': $obj->SetFetchMode($v); break;
#ado
case 'charpage': $obj->charPage = $v; break;
#mysql, mysqli
case 'clientflags': $obj->clientFlags = $v; break;
#mysql, mysqli, postgres
case 'port': $obj->port = $v; break;
#mysqli
case 'socket': $obj->socket = $v; break;
#oci8
case 'nls_date_format': $obj->NLS_DATE_FORMAT = $v; break;
}
}
if (empty($persist))
$ok = $obj->Connect($dsna['host'], $dsna['user'], $dsna['pass'], $dsna['path']);
else if (empty($nconnect))
$ok = $obj->PConnect($dsna['host'], $dsna['user'], $dsna['pass'], $dsna['path']);
else
$ok = $obj->NConnect($dsna['host'], $dsna['user'], $dsna['pass'], $dsna['path']);
if (!$ok)
{ //////////////////////////////////////////////
die( var_dump($obj) . __LINE__ ); //////////////////////////////////////////////
} //////////////////////////////////////////////
return $false;
}
}
die( var_dump($obj) . __LINE__ ); //////////////////////////////////////////////
return $obj;
}
به خطهایی که علامت گذاشتم دقت کنید. این خطها رو به ترتیب حذف کنید تا اشکال پیدا بشه. اگه مقدار خروجی همه خطها رو اینجا بذارید خیلی بهتر میشه.