How can error handling be improved to prevent revealing sensitive information to potential attackers in PHP?

To prevent revealing sensitive information to potential attackers in PHP error handling, you can customize error messages to be more generic and avoid displaying detailed error messages that may disclose critical information about your system, such as database credentials or file paths. 

// Set error reporting level to not display sensitive information
error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED & ~E_STRICT);
ini_set('display_errors', 0);

// Custom error handler function to display generic error message
function customErrorHandler($errno, $errstr, $errfile, $errline) {
    echo "An error occurred. Please try again later."; // Generic error message
    error_log("Error: [$errno] $errstr - $errfile:$errline", 0); // Log the error without sensitive information
}

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

Keywords

Exception handling error reporting try-catch error suppression custom error messages

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