php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login

go to bug id or search bugs for

Request #53111 class_exists call __autoload every time on non existing classes
Submitted: 2010-10-20 12:10 UTC Modified: 2010-10-21 11:55 UTC
From: gmblar+php at gmail dot com Assigned:
Status: Not a bug Package: Performance problem
PHP Version: 5.3.3 OS: Linux
Private report: No CVE-ID: None
View Developer Edit
Welcome back! If you're the original bug submitter, here's where you can edit the bug or add additional notes.
If you forgot your password, you can retrieve your password here.
Password:
Status:
Package:
Bug Type:
Summary:
From: gmblar+php at gmail dot com
New email:
PHP Version: OS:

 

 [2010-10-20 12:10 UTC] gmblar+php at gmail dot com 
Description:
------------
class_exists call __autoload every time on non existing classes

Test script:
---------------
<?php

header('Content-Type: text/plain');

function __autoload($class) {
    var_dump('Autoload '.$class);
}

for($a=0; $a<10; $a++) {
    $status = class_exists('foobar');
    var_dump($status);
}

?>

Expected result:
----------------
string(15) "Autoload foobar"
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)

Actual result:
--------------
string(15) "Autoload foobar"
bool(false)
string(15) "Autoload foobar"
bool(false)
string(15) "Autoload foobar"
bool(false)
string(15) "Autoload foobar"
bool(false)
string(15) "Autoload foobar"
bool(false)
string(15) "Autoload foobar"
bool(false)
string(15) "Autoload foobar"
bool(false)
string(15) "Autoload foobar"
bool(false)
string(15) "Autoload foobar"
bool(false)
string(15) "Autoload foobar"
bool(false)

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2010-10-21 11:51 UTC] johannes@php.net 
That's expected. The autoload function might be non-deterministic.
 [2010-10-21 11:55 UTC] johannes@php.net
-Status: Open +Status: Bogus
 [2010-10-21 11:55 UTC] johannes@php.net 
.
 
PHP Copyright © 2001-2025 The PHP Group
All rights reserved. 		Last updated: Tue Dec 16 10:00:01 2025 UTC