Question

从另一个数组中排除值数组的最佳方法是什么？就像我有一个值列表我不想要在不同的列表中？我试图不使用reg ex，我认为它不应该是一个选项。

Answer 1

看看PHP的array_diff()-function。来自php.net的例子：

// original list
$array1 = array("a" => "green", "red", "blue", "red");

// these values will be removed from the first array
$array2 = array("b" => "green", "yellow", "red");

$result = array_diff($array1, $array2);

结果：

Array
(
    [1] => blue
)

Answer 2

使用

array_dif

例如像这样

// our initial array
$arr = Array("blue", "green", "red", "yellow", "green", "orange", "yellow", "indigo", "red");
print_r($arr);

// remove the elements who's values are yellow or red
$arr = array_diff($arr, array("yellow", "red"));
print_r($arr);

// optionally you could reindex the array
$arr = array_values($arr);
print_r($arr);

如何从php数组中过滤精确值

2 个答案: