How can error reporting be utilized effectively in PHP to debug issues related to password validation and session management?

Issue: Error reporting can be utilized effectively in PHP to debug issues related to password validation and session management by enabling error reporting, using try-catch blocks for exception handling, and logging errors to a file for further analysis. 

// Enable error reporting
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Password validation example
$password = "password123";

if(strlen($password) < 8){
    throw new Exception("Password must be at least 8 characters long.");
}

// Session management example
session_start();

if(!isset($_SESSION['user_id'])){
    throw new Exception("User is not logged in.");
}

// Logging errors to a file
set_error_handler(function($errno, $errstr, $errfile, $errline) {
    $errorLog = "Error: $errstr in $errfile on line $errline" . PHP_EOL;
    file_put_contents('error.log', $errorLog, FILE_APPEND);
});

// Try-catch block for exception handling
try {
    // Code that may throw exceptions
} catch (Exception $e) {
    echo "Caught exception: " . $e->getMessage();
}

Keywords

error reporting PHP password validation session management debugging

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