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POPHP image server script returning broken image
 

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    <p>I've been working on a website used to promote Tumblrs. I just created my first PHP Image Server script, so that we can save Tumblr Avatars and reduce those pesky Tumblr API calls.</p> <p>I have it working on the site now, however there is an odd glitch that's arising. When the page is opened, there's almost always 1 or 2 of the avatars that are showing up as broken images.</p> <p>Page with behavior: <a href="http://www.tumblrlink.com/" rel="nofollow">http://www.tumblrlink.com/</a></p> <p>I know it's not specific to a particular account, since refreshing the page will usually show a different set of images broken.</p> <p>This is the Image Server Script I built:</p> <pre><code>&lt;?php if (!isset($_GET['uri'])) exit(); $url = urldecode($_GET['uri']); // Check to make sure API URL is passed. if (strpos($url,'http://api.tumblr.com/') === FALSE) exit(); // Get the User's Tumblr "Short Name" $shortName = $url; $shortName = str_replace('http://api.tumblr.com/v2/blog/','',$shortName); $shortName = str_replace('/avatar/40','',$shortName); $avatarLoc = '../../media/avatars/' . $shortName . '.png'; // Save the Avatar to the server for use. if (!file_exists($avatarLoc)) { copy($url, $avatarLoc); } // Write out the contents of the Avatar Image. header("Content-Type: image/png"); header("Content-Length: " . filesize($avatarLoc)); readfile($avatarLoc); exit(); ?&gt; </code></pre> <p>Now, as you can see on the link, the images are saved and served successfully... but only 90% of the time.</p> <p>Is there some kind of programmed timing issue going on here, or could this be an issue with the server / environment? Any help would be appreciated.</p>
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    1. USLuca Filosofi
    1. USTbWill4321
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    1. COAny answer we could provide would be pure speculation. The best way to find the problem is to update your code to log every step of the the process so that you can see when and where it fails. You can then consult the logs when you observe a failure to identify a common factor.
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      1. USGeorge Cummins
    2. COtry using file_get_contents OR cURL to fetch the image data... and see wassup...
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      1. POPHP image server script returning broken image
      1. USLuca Filosofi
    3. CO@GeorgeCummins I know that there's the probability that there's no way to figure this out without access to the server. I was just wondering if anyone in the community has had a similar experience with, say, the `readfile()` function, and knows a work around.
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      1. USTbWill4321
 

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