How can PHP developers handle the issue of images not updating or reloading after form submission?

Issue: Images not updating or reloading after form submission can be resolved by adding a random query string to the image URL. This forces the browser to fetch a new version of the image instead of using the cached one. Code snippet: 

<?php
$imageUrl = "image.jpg";
$timestamp = time();
$refreshedUrl = $imageUrl . "?timestamp=" . $timestamp;
?>

<img src="<?php echo $refreshedUrl; ?>" alt="Image">

Keywords

PHP image caching header function cache control browser cache

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