How can PHP developers optimize the code for a photo gallery to improve performance and user experience?

To optimize the code for a photo gallery and improve performance and user experience, PHP developers can implement lazy loading techniques. This involves loading images only when they are in the user's viewport, reducing initial page load time and improving overall performance. 

<?php
// Lazy loading images in a photo gallery
$images = [
    'image1.jpg',
    'image2.jpg',
    'image3.jpg',
    'image4.jpg',
    'image5.jpg'
];

foreach ($images as $image) {
    echo '<img src="placeholder.jpg" data-src="' . $image . '" class="lazy-load">';
}
?>

Keywords

caching lazy loading image compression database indexing code profiling

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