Description:
------------
I get the message 'child pid 13149 exit signal Segmentation fault (11)' in my apache logs. The problem occurs when i use the following code.



Reproduce code:
---------------
<?php

class env
{
	public function __construct()
	{
		set_error_handler(array(__CLASS__, 'errorHandler'));
	}
	
	public static function errorHandler($errno, $errstr, $errfile, $errline)
	{
		throw new ErrorException($errstr, 0, $errno, $errfile, $errline); 
	}
}

class cache implements ArrayAccess
{
	private $container = array();
	
	public function offsetGet($id) {}
	
	public function offsetSet($id, $value) {}
	
	public function offsetUnset($id) {}
	
	public function offsetExists($id)
	{
		return isset($this->containers[(string) $id]);
	}
}

$env = new env();
$cache = new cache();
var_dump(isset($cache[$id]));

?>

Expected result:
----------------
Fatal error: Uncaught exception 'ErrorException' with message 'Undefined variable: id' 

Actual result:
--------------
child pid 13149 exit signal Segmentation fault (11) in error.log