What is a consequence of setting error reporting to E_ALL?

Setting error reporting to E_ALL signifies that the script will notify you of all types of errors, including notices, warnings, and fatal errors. This comprehensive level of error reporting is critical for developers because it ensures that no potential issue is overlooked during development and debugging processes. By enabling E_ALL, developers receive feedback on even the smallest problems in their code, which can include deprecated functions or minor notice-level issues that might not stop the execution of the script but could lead to more significant problems in the future.

The options that describe lesser levels of error reporting do not apply when E_ALL is enabled. Therefore, the setting allows for the full spectrum of errors to be displayed, fostering better understanding and maintenance of the code. This practice is particularly useful in development environments to ensure code quality before moving to production, where error reporting might be adjusted to prevent users from seeing detailed error messages.