PHP Display All Errors

PHP provides various error reporting levels to control the verbosity of error messages. You can set these levels using the error_reporting() function. By default, error_reporting() only shows fatal errors and warnings.

To display all PHP errors, including deprecated errors, notices, and strict standards, you will need to modify the error_reporting directive in your php.ini file or modify your PHP code.

Syntax

To display all PHP errors, you can use the following syntax:

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

Example

<?php
// Display all errors
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

// Your PHP code here
?>

Output

When you execute the PHP code with above mentioned syntax, you will see all PHP errors, warnings, notices, and strict standards.

Explanation

The first two lines of the example code turn on the display of errors and warnings. The error_reporting(E_ALL) function sets the reporting level to show all errors and warnings including deprecation errors and notices.

Use

You can use this syntax in your development environment to catch errors and warnings before deploying your code to production. It helps you to identify and fix errors quickly.

Important Points

• Enabling error reporting in a production environment can expose potential security vulnerabilities in your application.
• You should never display PHP errors and warnings on a live production site. Instead, log them to a file for debugging purposes.

Summary

In this tutorial, we learned how to display all PHP errors using the ini_set() and error_reporting() functions. You can modify the error reporting level using the error_reporting() function and turn on the display of errors and warnings using the ini_set() function. However, you should never display PHP errors and warnings on a live production site.