How can PHP be used to display images in a gallery with navigation options like "back" and "next"?

To display images in a gallery with navigation options like "back" and "next" using PHP, you can store the image filenames in an array and use query parameters in the URL to navigate through the images. You can use PHP to dynamically generate the HTML code for displaying the images and navigation links based on the current image index. 

<?php
$images = ['image1.jpg', 'image2.jpg', 'image3.jpg']; // Array of image filenames
$currentImage = isset($_GET['image']) ? $_GET['image'] : 0; // Get the current image index from query parameter

// Display the current image
echo '<img src="' . $images[$currentImage] . '" alt="Gallery Image">';

// Display navigation links for "back" and "next"
if ($currentImage > 0) {
    echo '<a href="?image=' . ($currentImage - 1) . '">Back</a>';
}
if ($currentImage < count($images) - 1) {
    echo '<a href="?image=' . ($currentImage + 1) . '">Next</a>';
}
?>

Keywords

PHP image gallery navigation options back next

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