<?php $a1=array("a"=>45,"c"=>41,"e"=>74); $a2=array("b"=>52,"d"=>36,"e"=>23); $a3=array("e"=>26, "a"=>63, "b"=>59); echo $a1,$a2,$a3; $a4=array_intersect_key($a1,$a2,$a3); print_r($a4); ?>
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