<?php $objA = new \stdClass(); $objA->A = 1; $objB = new \stdClass(); $objB->B = 2; $objC = new \stdClass(); $objC->C = 3; $objD = new \stdClass(); $objD->D = 4; $arr1 = [ $objA, $objC ]; $arr2 = [ $objB, $objD ]; var_dump(in_array($arr1, $objA)); var_dump(array_diff($arr1, $arr2));
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