当前位置: 首页 > 网络学院 > 服务端脚本教程 > PHP > array_walk_recursive() 函数
The array_walk_recursive() function runs each array element in a user-made function. The array's keys and values are parameters in the function. The difference between this function and the array_walk() function is that with this function you can work with deeper arrays (an array inside an array). Returns True or False
array_walk()函数将一个数组中的元素应用于用户自定义函数中;该数组中的键和值作为用户自定义函数中的参数。该函数与array_walk()函数的不同点在于:使用array_walk_recursive()函数,你可以使用嵌套的数组[deeper arrays](即:数组中的数组)。
array_walk_recursive(array,function,parameter) |
Parameter参数 | Description描述 |
---|---|
array | Required. Specifying an array 必要参数。指定一个数组 |
function | Required. The name of the user-made function 必要参数。指定用户自定义函数的名称 |
parameter | Optional. Specifies a parameter to the user-made function 可选参数。为用户自定义函数指定一个参数 |
Tip: You can assign one parameter to the function, or as many as you like.
提示:你可以向函数中指定一个或多个参数。
<?php function myfunction($value,$key) { echo "The key $key has the value $value<br />"; } $a1=array("a"=>"Cat","b"=>"Dog"); $a2=array($a1,"1"=>"Bird","2"=>"Horse"); array_walk_recursive($a2,"myfunction"); ?> |
The output of the code above will be:
上述代码将输出下面的结果:
The key a has the value Cat The key b has the value Dog The key 1 has the value Bird The key 2 has the value Horse |