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<?php $products = array( array('TIR','tire',10), array('OIL','oil',100), array('SPK','spark',20) ); function compare($x,$y){ if($x[2] < $y[2]){ return 1; }else if($x > $y){ return -1; }else if($x[2] == $y[2]){ return 0; } } usort($products,"compare"); ?>
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