Result Size:
625 x 571
tryphp_func_array_diff_key2.php:
<!DOCTYPE html> <html> <body> <?php $a1=array("red","green","blue","yellow"); $a2=array("red","green","blue"); $result=array_diff_key($a1,$a2); print_r($result); ?> </body> </html>
Array ( [3] => yellow )