如何从关联数组中删除键及其值? [英] How can I remove a key and its value from an associative array?

问题描述

给出一个关联数组:

array("key1" => "value1", "key2" => "value2", ...)

在给定键的情况下，我将如何删除某个键值对?

How would I go about removing a certain key-value pair, given the key?

推荐答案

您可以使用 unset :

You can use unset:

unset($array['key-here']);

示例:

$array = array("key1" => "value1", "key2" => "value2");
print_r($array);

unset($array['key1']);
print_r($array);

unset($array['key2']);
print_r($array);

输出:

Array
(
    [key1] => value1
    [key2] => value2
)
Array
(
    [key2] => value2
)
Array
(
)

这篇关于如何从关联数组中删除键及其值?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！