简单教程
提交运行
代码编辑器：
<?php function myfunction($value,$key) { echo "$key => $value<br>"; } $a1 = array("a"=>"red","b"=>"green"); $a2 = array($a1,"1"=>"blue","2"=>"yellow"); array_walk_recursive($a2,"myfunction");
运行结果：