array_intersect_key — 使用键名比较计算数组的交集

 

说明

array_intersect_key ( array $array1 , array $array2 [, array $... ] ) : array

array_intersect_key() 返回一个数组，该数组包含了所有出现在 array1 中并同时出现在所有其它参数数组中的键名的值。无铁芯直线电机

参数

 

array1

The array with master keys to check.

array2

An array to compare keys against.

...

A variable list of arrays to compare.

 

返回值

Returns an associative array containing all the entries of array1 which have keys that are present in all arguments.