How To Handle \'Allowed Memory Size Exhausted\' Errors in PHP Using Error Handling and Shutdown Function?

Handling 'Allowed Memory Size Exhausted' Errors in PHP with Error Handling and Shutdown Function

In PHP, encountering a fatal 'Allowed memory size exhausted' error can disrupt your script's execution. To handle this error gracefully, we'll explore two approaches:

1. Custom Error Handling:

Utilizing set_error_handler(), you can intercept errors and respond appropriately. As suggested in other answers, register_shutdown_function() can be deployed to check error_get_last() after the script has terminated. This allows you to handle the error outside of try/catch blocks.

2. Try/Catch Block:

Try/catch blocks handle exceptions thrown when errors are encountered. However, fatal errors trigger script termination, preventing exceptions from being thrown. To circumvent this, we utilize the @ operator to suppress error output or set ini_set('display_errors', false) to disable error display.

By implementing these techniques, you can catch and handle 'Allowed memory size exhausted' errors, ensuring a graceful response and avoiding script termination. Additionally, setting error_reporting() to a high value (-1) and employing set_error_handler() for non-fatal errors is recommended for comprehensive error handling.

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