Description:
------------
When I encode by zend guard(v5.0.0) and after I run this code I have a message 

 Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 
54263789 bytes) in C:\h\ghx\apache\htdocs\alpha\include\connection.inc.php on 
line 1072

but if I run and not encode it's work well.

PHP Version 5.2.16
 This program makes use of the Zend Scripting Language Engine:
Zend Engine v2.2.0, Copyright (c) 1998-2010 Zend Technologies
    with Zend Extension Manager v1.2.0, Copyright (c) 2003-2007, by Zend 
Technologies
    with Zend Optimizer v3.3.3, Copyright (c) 1998-2007, by Zend Technologies




Test script:
---------------
<?php
    $string = "SELECT FIELDA, FIELDB, FIELDC FROM TABLE WHERE FIELDA > 100";
	$openselect = 0;
	$parole = explode(" ",$string);
	
	$i = 0;
	$trovata = 0;	
	foreach ($parole as $elabora){

			if((strpos($elabora,"SELECT")!==false && $trovata==0)){	
			$openselect++;
			}
			if((strpos($elabora,"FROM")!==false && $trovata==0)){	
			$openselect--;
			}
			
			if($openselect==0){
				$trovata = 1;
				$condizione .= " ".$elabora;	
				echo "linke 1074  ".$condizione."<br>";
				array_splice($parole,$i);		
			}

		$i++;
	}
?>