When developing PHP applications, error prompts are often a useful debugging tool. However, in a production server environment, turning on error prompts may expose sensitive information, which may lead to security issues. Therefore, it is a good security practice to turn off PHP error prompts on production servers. Here are some ways to turn off PHP error prompts.

1. Modify in the php.ini configuration file

The php.ini configuration file is the main configuration file of PHP, which contains a large amount of PHP configuration information. To turn off PHP error prompts, you can modify the error_reporting and display_errors instructions in the php.ini file.

First open the php.ini file, find the error_reporting directive and change its value to 0. This will turn off all error reporting, including fatal errors and warnings.

Secondly, find the display_errors directive and set its value to Off. This will turn off all error output, both on the screen and in the log file.

After modifying the php.ini file, restart the web server for the modification to take effect.

2. Modify in the .htaccess file

If you do not have sufficient permissions to access the php.ini file, you can use the .htaccess file to modify the PHP configuration. Add the following code to your .htaccess file to turn off PHP error messages:

#?Turn?off?PHP?error?display
php_flag?display_errors?off

Likewise, to disable warnings and fatal errors, add the following code to your .htaccess file:

#?Turn?off?PHP?error?reporting
php_value?error_reporting?0

Please note that .htaccess files only work on the Apache web server. If you use another web server, such as Nginx, you will need to find similar directives in that web server's configuration file.

3. Use PHP code to turn off error prompts

In PHP code, you can use the error_reporting() and ini_set() functions to turn off PHP error prompts. The following code example turns off all errors and warnings:

//?Turn?off?error?reporting
error_reporting(0);

//?Disable?error?display
ini_set('display_errors',?0);

This method is particularly suitable for those applications running in a shared hosting environment, as they usually cannot modify the php.ini file or .htaccess file.

It should be noted that turning off PHP error prompts will make it more difficult for you to debug problems. Therefore, in a development environment, we recommend turning on error prompts to identify and resolve problems, while turning off error prompts on production servers to ensure safety.

Summary

Turning off PHP error prompts is an effective way to protect the security of web applications. In this article, we introduce three ways to turn off PHP error prompts: modifying it in the php.ini file, modifying it in the .htaccess file, and using PHP code to turn it off. Depending on your environment and needs, choose to use the method that works for you.

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