PHP implode展开用于if else语句的逗号分隔值 [英] PHP implode explode comma separated values for use in if else statement

问题描述

我正在开发一个项目，我需要在数据库字段中输入逗号分隔值，然后提取要在if和else语句中使用的数据。

I am working on a project where I need to enter comma separated values in a database field and then extract the data to use in if and else statement.

示例：在数据库字段 user_status 中有 admin，admin1，admin2，admin3 ........等用户名。我想使用这些值，如：

For example: in the database field user_status i have usernames like admin,admin1,admin2,admin3........etc. I want to use these values like:

$user_status = $row['user_status']; // database values of all the usernames
$username    = $_SESSION['username']; // username of the logged in user eg. admin

if($user_status == $username) // if session username matches with a username in the database field
{
  statements;
}else{
  statements;
}

我想从数据库中提取逗号分隔的数据库值，登录用户的用户名与数据库中的许多用户名之一匹配。但我不知道如何做到这一点。请帮助我的专家。

I want to extract the comma separated database values from the database and match if the logged in user's username matches with one of many username's in the database. But I am not pretty sure how to do this. Please help me experts.

推荐答案

使用 explode in_array 以检查 $ user_status $ username > array。

Create an array with explode and use in_array to check if the $username exists in the $user_status array.

<?php
$username    = $_SESSION['username'];
$user_status = explode(',', $row['user_status']);

if (in_array($username, $user_status)) {
    //...
}

http://php.net/ manual / en / function.explode.php

http://php.net/manual/en/function.in-array.php

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