简单教程
提交运行
代码编辑器：
<?php function myfunction($a,$b) { if ( $a === $b ) { return 0; } return ( $a > $b ) ? 1 : -1 ; } $a1 = array("a"=>"red","b"=>"green","c"=>"blue"); $a2 = array("a"=>"blue","b"=>"black","e"=>"blue"); $result = array_diff_ukey($a1,$a2,"myfunction"); print_r($result);
运行结果：