要搜索数组中的元素，可以使用array_search函数，而可以使用unset函数从数组中删除元素.例如:

To search an element in an array, you can use array_search function and to remove an element from an array you can use unset function. Ex:

<?php
$hackers = array ('Alan Kay', 'Peter Norvig', 'Linus Trovalds', 'Larry Page');

print_r($hackers);

// Search
$pos = array_search('Linus Trovalds', $hackers);

echo 'Linus Trovalds found at: ' . $pos;

// Remove from array
unset($hackers[$pos]);

print_r($hackers);

您可以参考: https://www.php.net/manual/zh_cn/ref.array.php 获取更多与数组相关的功能.

You can refer: https://www.php.net/manual/en/ref.array.php for more array related functions.