How can you ensure that the randomly selected background images on a website match or complement each other for a cohesive design?

To ensure that randomly selected background images on a website match or complement each other for a cohesive design, you can create a curated collection of images that have a similar color palette, theme, or style. By hand-picking images that work well together, you can guarantee a more cohesive design aesthetic.

<?php
// Array of curated background images
$backgroundImages = [
    'image1.jpg',
    'image2.jpg',
    'image3.jpg',
    'image4.jpg'
];

// Select a random background image
$randomImage = $backgroundImages[array_rand($backgroundImages)];

// Output the background image in CSS
echo '<style>';
echo 'body {';
echo "background-image: url('{$randomImage}');";
echo '}';
echo '</style>';
?>