Why Is My PHP Server Returning a 500 Internal Server Error Instead of Displaying Errors?

Troubleshooting 500 Internal Server Errors When PHP Fails to Display Errors

In this situation, PHP is no longer displaying error messages and instead returns a generic 500 Internal Server Error. Notably, the issue occurs despite the error messages being visible on other servers.

To resolve this, it's essential to inspect the PHP settings on the current server. The "error_reporting," "display_errors," and "display_startup_errors" configuration options within the php.ini file should be scrutinized.

Typically, "error_reporting" should be set to "E_ALL," while both "display_errors" and "display_startup_errors" should be set to "On." However, it's recommended to disable "display_errors" on production servers and use "log_errors" instead.

Adjusting these settings at runtime can also be achieved by adding the following lines at the outset of the affected script:

error_reporting(E_ALL);
ini_set('display_errors', 'On');

Remember to restart the web server after modifying any of these settings. Once the changes have been made correctly, PHP should revert to displaying error messages instead of the ambiguous 500 Internal Server Error.

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