array array_intersect (array array1, array array2 [, array ...])
取多个数组的交集,返回包含交集元素的新数组。
以array1为基础的,所以了,如果是关联数组,那key值就是array1的了。见例子。 例:
$array1 = array ("a" => "green", "red", "blue");
$array2 = array ("b" => "green", "yellow", "red");
$result = array_intersect ($array1, $array2);
//This makes $result have array ("a" => "green", "red");
取多个数组的交集,返回包含交集元素的新数组。
以array1为基础的,所以了,如果是关联数组,那key值就是array1的了。见例子。 例:
$array1 = array ("a" => "green", "red", "blue");
$array2 = array ("b" => "green", "yellow", "red");
$result = array_intersect ($array1, $array2);
//This makes $result have array ("a" => "green", "red");
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