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Bug #59793 Check for already declared functions issue
Submitted: 2011-05-30 07:48 UTC Modified: 2016-11-18 21:41 UTC
Avg. Score:3.7 ± 1.2
Reproduced:5 of 6 (83.3%)
Same Version:1 (20.0%)
Same OS:3 (60.0%)
From: vnsavage at gmail dot com Assigned:
Status: Wont fix Package: APC (PECL)
PHP Version: Irrelevant OS: Linux
Private report: No CVE-ID: None
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Bug Type:
From: vnsavage at gmail dot com
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 [2011-05-30 07:48 UTC] vnsavage at gmail dot com
When compiling cached opcode, APC does not check if functions 
are already declared.

This seems to be happening because the return value of 
install_function() in cached_compile() is not checked.

If you need more testing or patches, please let me know. I'd 
be glad to help.

Reproduce code:
Step one:

~# cat index.php


~# cat file2.php

function test() { echo 'test() called from file2.php'; }

Load index.php in a browser.

Step two:

~# cat index.php


~# cat file1.php

function test() { echo 'test() called from file1.php'; }

~# cat file2.php

function test() { echo 'test() called from file2.php'; }

Reload index.php in a browser.

Expected result:
Fatal error: Cannot redeclare test() (previously declared in 
~/file1.php:2) in ~/file2.php on line 2

Actual result:
test() called from file1.php


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 [2016-11-18 21:41 UTC]
-Status: Open +Status: Wont fix
 [2016-11-18 21:41 UTC]
APC is no longer supported in favor of opcache that comes bundled with PHP, if you wish to use the user cache, then look at PECL/APCu.
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