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<!DOCTYPE html>
<html>
<body>
<?php
$a1=array("a"=>"red","b"=>"green","c"=>"blue");
$a2=array("a"=>"red","c"=>"blue","d"=>"pink");
$result=array_diff_key($a1,$a2);
print_r($result);
?>
</body>
<!-- /php/phptryit.asp?filename=tryphp_func_array_diff_key Thu, 06 Feb 2025 19:26:39 GMT -->
</html>
​