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@ 2014-08-09T17:51:53Z

<?php

$arr = Array ( 0 => Array ( 0 => 'Red', 1 => 'Steel' ), 
    		   1 => Array ( 0 => 'Red', 1 => 'Wood' ) ,
    		   2 => Array ( 0 => 'Blue', 1 => 'Wood' ) 
    	     );
$a = array_column($arr, 0);print_r($a);

Output
Performance
VLD
References
Branches

array_column: documentation ( source)
print_r: documentation ( source)

preferences:dark modelive preview

40.15 ms | 402 KiB | 5 Q