简单教程
提交运行
代码编辑器：
<?php $a1 = array("a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow"); $a2 = array("e"=>"red","f"=>"green","g"=>"blue"); $result = array_diff_assoc($a1,$a2); print_r($result);
运行结果：