How can PHP developers ensure cross-compatibility and optimal performance when using the GD library?

To ensure cross-compatibility and optimal performance when using the GD library in PHP, developers should check for the availability of the GD extension, handle errors gracefully, and optimize image processing functions for better performance.

// Check if GD extension is available
if (!extension_loaded('gd')) {
    die('GD extension is not available');
}

// Handle errors gracefully
ini_set('display_errors', 0); // Disable error display
ini_set('log_errors', 1); // Enable error logging

// Optimize image processing functions
ini_set('memory_limit', '256M'); // Increase memory limit for image processing