Online PHP editor | refs for RSpF9

<?php $a = [ 10 , 0x30 ]; $b = ['10', '0x30']; echo json_encode(array_intersect($a, $b)); echo "\n\n"; $a = ["foo" => 1, 2]; $b = [1, "bar" => 2]; var_dump(array_intersect($a, $b)); echo "\n\n"; $a = [[1], [2]]; $b = [[3], [4]]; echo json_encode(array_intersect($a, $b)); echo "\n\n"; $a = [null]; $b = ['']; echo json_encode(array_intersect($a, $b)); echo "\n\n";