Why Aren't My PHP Error Messages Displaying?

Troubleshooting PHP Error Display Issues

The Problem:

In a PHP setup, users may encounter a peculiar situation where PHP fails to display error messages. This occurs even when there are errors during execution, such as missing parameters in database connections.

Causes and Resolution:

This issue arises due to the default error handling settings in PHP. By default, PHP suppresses error messages to prevent sensitive information from being exposed in production environments. To enable error display, several options are available:

Method 1: Script-Level Error Reporting:

For temporary error reporting, add the following lines at the beginning of your PHP script:

ini_set('display_errors', 1);
error_reporting(~0);

Method 2: php.ini Configuration for Development Environments:

If it's a development or testing environment, consider modifying the php.ini file for persistent error reporting:

1. Uncomment and set error_reporting to E_ALL (or a desired error level) to enable error reporting.
2. Set display_errors to On to display errors on the screen.

After making these changes, PHP will start displaying error messages, helping developers identify and resolve issues during application development.

The above is the detailed content of Why Aren't My PHP Error Messages Displaying?. For more information, please follow other related articles on the PHP Chinese website!