Zend Certified PHP Engineer (ZCPE) Practice Test 2025 – All-in-One Guide to Achieve Certification Success!

The command ini_set('display_errors', 1) is utilized in PHP to control how errors are handled and displayed. Specifically, setting 'display_errors' to 1 enables the output of error messages directly to the webpage. This is particularly useful during the development phase, as it allows developers to immediately see errors and warnings that occur in their scripts, facilitating debugging and issue resolution.

When 'display_errors' is set to 1, any errors generated by the PHP script will be shown on the webpage, making it easier to identify problems that need to be addressed. Proper visibility of these errors can significantly aid in enhancing the development process and ensuring that issues are rectified promptly.

The other options presented deal with different aspects of error handling; logging errors to a file is managed by settings like 'log_errors' and 'error_log', disabling error reporting contradicts the intent of this command, and setting the default error reporting level is managed through 'error_reporting', not 'display_errors'. The specific effect of ini_set('display_errors', 1) is clear in its direct enabling of error visibility on the webpage, making it an essential command for effective PHP debugging.