What steps can be taken to troubleshoot issues with PHP not displaying images in a Javascript gallery format?

To troubleshoot issues with PHP not displaying images in a Javascript gallery format, you can check if the image paths are correct, ensure that the images are accessible to the PHP script, and verify that the PHP script is outputting the correct HTML code for the gallery. You can also use browser developer tools to inspect network requests and console errors for further debugging.

<?php
// Check image paths
$image_paths = array("image1.jpg", "image2.jpg", "image3.jpg");

// Output HTML for gallery
echo '<div class="gallery">';
foreach ($image_paths as $image) {
    echo '<img src="' . $image . '" alt="Gallery Image">';
}
echo '</div>';
?>