Are there any best practices for optimizing PHP scripts that generate random images?

When generating random images in PHP scripts, it's important to optimize the code to ensure efficient performance. One way to do this is by pre-generating a pool of random images and then selecting from this pool when needed, rather than generating a new image every time the script is run. This can help reduce the computational overhead and improve the overall speed of the script.

// Pre-generate a pool of random images
$randomImages = [
    'image1.jpg',
    'image2.jpg',
    'image3.jpg',
    // Add more images as needed
];

// Select a random image from the pool
$randomImage = $randomImages[array_rand($randomImages)];

// Output the selected image
echo '<img src="' . $randomImage . '" alt="Random Image">';