How to eliminate alert in php

php method to eliminate alerts: First create a PHP sample file; then use the "error_reporting()" function to turn off the warning error, with a code such as "error_reporting(E_ALL^E_WARNING);".

The operating environment of this article: Windows 7 system, PHP version 7.1, DELL G3 computer

Common reasons for WARNING errors in PHP:

Cannot connect to the database

Create a new PHP document. Since the username and password for connecting to the data are incorrect, a WARNING warning error will be generated

Warning level warning errors are non-fatal and do not affect subsequent code execution

Use the error_reporting() function to turn off warning warnings Error, example:

error_reporting(E_ALL^E_WARNING);

After setting, the PHP script will ignore this error, and the subsequent code will execute normally

Recommended learning: "PHP Video Tutorial"

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