What potential issues can arise when using error_reporting(E_ALL) in PHP code?

Using error_reporting(E_ALL) in PHP code can potentially expose sensitive information to users, such as file paths, database credentials, or other implementation details. To prevent this, it's important to handle errors gracefully and log them internally without revealing sensitive information to users. One way to achieve this is by setting a custom error handler function that logs errors without displaying them to users.

// Define custom error handler function
function customErrorHandler($errno, $errstr, $errfile, $errline) {
    // Log the error without displaying sensitive information
    error_log("Error: [$errno] $errstr in $errfile on line $errline");
}

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

// Set error reporting level
error_reporting(E_ALL);