如何检查mysqli_connect是否成功? [英] How to check if mysqli_connect was successful or not?

问题描述

我正在编写安装程序脚本，我需要检查用户是否输入了正确的数据库信息，因此需要检查mysqli_connect是否成功.一个简单的if-else就足够了.

I'm writing an installer script and I need to check if the user entered correct database information and therefore need to check if mysqli_connect was successful or not. A simple if-else will suffice.

推荐答案

像这样:

if( ! $db = mysqli_connect(...) ) {
    die('No connection: ' . mysqli_connect_error());
}

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