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Bug #63422 incorrect work is_callable
Submitted: 2012-11-02 18:04 UTC Modified: 2012-11-03 14:46 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:0 (0.0%)
From: iblacksmoke at gmail dot com Assigned:
Status: Not a bug Package: Scripting Engine problem
PHP Version: 5.4.8 OS:
Private report: No CVE-ID: None
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 [2012-11-02 18:04 UTC] iblacksmoke at gmail dot com 
Description:
------------
Is_callable function doesnt determine ability to call private method in class, even if this call made in context of class, from which you can call private function.

Test script:
---------------
class A {
	public function test($method){
		return (is_callable($this, $method)) ? 'yes' : 'no';
	}
	private function qwerty(){}
}

echo (new A)->test('qwerty');

Expected result:
----------------
yes

Actual result:
--------------
no

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 [2012-11-03 03:18 UTC] pierrick@php.net 
Sorry, but your problem does not imply a bug in PHP itself.  For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system is not the
appropriate forum for asking support questions.  Due to the volume
of reports we can not explain in detail here why your report is not
a bug.  The support channels will be able to provide an explanation
for you.

Thank you for your interest in PHP.

There is a bug in your code

it should be is_callable(array($this, $method))
 [2012-11-03 03:18 UTC] pierrick@php.net
-Status: Open +Status: Not a bug
 [2012-11-03 09:43 UTC] iblacksmoke at gmail dot com 
But its illogical behavior of function. From place, where check, I can call my function, but is_callable says its impossible.
 [2012-11-03 14:46 UTC] pierrick@php.net 
Please read my previous comment. Your code is wrong. Try this :

class A {
    public function test($method){
        return (is_callable(array($this, $method))) ? 'yes' : 'no';
    }                   
    private function qwerty(){}
}

echo (new A)->test('qwerty');
 
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