What are the potential pitfalls of creating a custom error handler in PHP?

One potential pitfall of creating a custom error handler in PHP is that it may hide important error messages that could help in debugging. To avoid this, it's important to log the errors in a file or database for later review. Additionally, make sure to handle errors gracefully and provide useful information to the user without exposing sensitive details about the application. 

// Custom error handler function
function customErrorHandler($errno, $errstr, $errfile, $errline) {
    // Log the error to a file
    error_log("Error: [$errno] $errstr in $errfile on line $errline", 3, "error.log");
    
    // Display a user-friendly error message
    echo "An error occurred. Please try again later.";
}

// Set the custom error handler
set_error_handler("customErrorHandler");

Keywords

custom error handler PHP error handling exceptions error reporting

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