The functions encapsulated in PHP are not used properly and always prompt parameter issues.

WBOY
Release: 2023-03-01 19:16:01
Original
1134 people have browsed it

The functions encapsulated in PHP are not used properly and always prompt parameter issues.

The functions encapsulated in PHP are not used properly and always prompt parameter issues.

The functions encapsulated in PHP are not used properly and always prompt parameter issues.

The error means that the first parameter of mysqli in my 167 is wrong? Is there something wrong... I don’t quite understand

Reply content:

The functions encapsulated in PHP are not used properly and always prompt parameter issues.

The functions encapsulated in PHP are not used properly and always prompt parameter issues.

The functions encapsulated in PHP are not used properly and always prompt parameter issues.

The error means that the first parameter of my 167 mysqli is wrong? Is there still a problem... I don’t quite understand

<code class="php">$link=connect2();
var_dump($link);</code>
Copy after login

Check if your link is an instance of mysqli, that is, if it is similar

<code>function connect2(){
    return new mysqli("localhost", "xxx", "xxx", "xxx_db");
}</code>
Copy after login

http://php.net/manual/zh/mysq...

Related labels:
php
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!