从 php 数组中取消设置变量

Question

我有一个数组，打印出来时看起来像下面这样，尽管有许多警告和成功消息可用：

Array
(
    [warning] => Array
        (
            [0] => We might have a problem.
            [1] => You might have a problem.
            [2] => They may have a problem.
        )

    [success] => Array
        (
            [0] => Everything is awesome
        )

)

我需要查看数组并找到字符串值为 You might have a problem. 的警告。所以我有以下代码：

foreach($msgArray as $msgType => $messages) {
    foreach($messages as $message => $msg) {
        if($message == 'warning' && $msg == 'You might have a problem.'){
            unset($msgArray[$msgType]);
        }
    }
}

但不幸的是，这会从 $msgArray.

中删除 all $msgType of warning

如何删除只是值为 "You might have a problem." 的警告？

谢谢！

Answer 1

您正在删除顶级密钥。只需删除二级：

unset($msgArray[$msgType][$message]);

P.S。根据您显示的数据和代码，$message 将 永远不会 成为 warning。 $msgType 会。

Answer 2

一行就可以完成，无需循环和比较。只需搜索 return 密钥和 unset 的消息：

unset($msgArray['warning'][array_search('You might have a problem.', $msgArray['warning'])]);

从 php 数组中取消设置变量

Unset variable from php array

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