Artificially delay the loading of images to simulate a slow connection

slow_image_loader.php

<?php
    /*
        Artificially delay the loading of images to simulate a slow connection
        <img src="/slow_image_loader.php?img=realimage.jpg" />
    */
    
    $image = $_GET['img'];
    
    // delay between 1 and 3 seconds
    usleep(rand(1000000,3000000));
    
    header("Location: ".$image);
    exit;
?>