How to enable error prompts in php

For PHP developers, encountering errors when debugging code is inevitable. Turning on error prompts is a common debugging method, which allows us to quickly discover and solve problems in the code. This article will show you how to enable error prompts in PHP.

First of all, to enable error prompts in PHP, you need to modify the PHP configuration file php.ini. Therefore, you need to first find the php.ini file and open it. php.ini is usually located in the installation directory of the web server and can be viewed through the phpinfo() function.

Then, by searching for comment options or using the search function, find the following two options:

display_errors
error_reporting

These two options control whether PHP runtime errors and reminders are displayed. By default, their values ​​are off. To enable error prompts, set their values ​​to on.

First, set display_errors to on, which controls whether to display PHP runtime errors. Find this line of code in php.ini:

display_errors = Off

Replace it with:

display_errors = On

Secondly, set error_reporting to a lower value so that all errors are displayed, not just Fatal error. Find this line of code in php.ini:

error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT

Replace it with:

error_reporting = E_ALL

Save the php.ini file and restart the web server. The next time you run the PHP code, you will see Detailed error message. These error messages will help you quickly identify and resolve possible problems.

In addition to turning on error prompts in php.ini, you can also turn on and off error prompts by setting the ini_set() function in PHP code. For example, the following code will turn off error prompts:

ini_set('display_errors', 0);
ini_set('error_reporting', 0);

In short, turning on error prompts is an important debugging method that can help PHP developers quickly find and solve problems in the code. Error prompts can be easily turned on and off by modifying the php.ini file or using the ini_set() function. To better debug your code, be sure to turn this option on.

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