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Bug #15737 isset() dont work with $str[$index]
Submitted: 2002-02-26 13:52 UTC Modified: 2002-02-26 14:03 UTC
From: Beater at orgalan dot de Assigned:
Status: Not a bug Package: Strings related
PHP Version: 4.1.1 OS: Win32 / Linux
Private report: No CVE-ID: None
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From: Beater at orgalan dot de
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 [2002-02-26 13:52 UTC] Beater at orgalan dot de 
<?php
function test($foo = 'bar')
{	
	for($i=0; $i<5; $i++)
	{
		!isset($foo[$i]) ? $foo[$i] = 0 : 0;
		
		echo $foo[$i];
	}
}

test();
?>

works fine on 4.0.6; 4.1.1 (linux and win32) announces

"Uninitialized string offset on line 6..."

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 [2002-02-26 14:03 UTC] zak@php.net 
The issues is not isset().  PHP generates an warning when attempting to access a string subscript that does not exist.

If the level error reporting is set to E_ALL, this warning will be generated. 

A better way to do this would be to use strlen().
 
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