What resources are available for PHP developers to enhance their skills and knowledge?

PHP developers can enhance their skills and knowledge by utilizing various resources such as online tutorials, documentation, forums, blogs, online courses, and books. These resources can provide valuable insights, tips, best practices, and examples to help developers improve their PHP programming abilities. One way to enhance PHP skills is to regularly practice coding challenges and exercises. Websites like LeetCode, HackerRank, and CodeSignal offer a wide range of PHP coding challenges that can help developers improve their problem-solving skills and familiarize themselves with different PHP concepts.

// Example PHP code snippet for practicing coding challenges on LeetCode

// Function to find the sum of two numbers
function sum($num1, $num2) {
    return $num1 + $num2;
}

// Test the function with sample input
echo sum(5, 3); // Output: 8