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Link: http://codepad.org/f30c6FUj    [ raw code | output | fork ]

PHP, pasted on Jun 12:
<?php

	error_reporting(E_ALL);
	ini_set('display_errors' , 1);
	
	$a = array( array(0) );
	
	echo '--1--';var_dump($a);
	
	$a = dummy($a);
	
	echo '--4--';var_dump($a);
	
	function dummy($arg) {
		
		foreach($arg as $key => $value) {
			
			$arg[$key][0] = 3;
		}    
		
		dummy2($arg);
		
		return dummy2($arg);
	}
	
	function dummy2($arg) {
		
		foreach($arg as $key => $value) {
			
		   $arg[$key][1]=9;
		}
		
		return $arg;
	}
?>


Output:
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--1--array(1) {
  [0]=>
  array(1) {
    [0]=>
    int(0)
  }
}
--4--array(1) {
  [0]=>
  array(2) {
    [0]=>
    int(3)
    [1]=>
    int(9)
  }
}


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