Cindy Reeves wrote: ... > > I don't trust their server will always be up/respond, so I want to use a PHP > function to determine whether a GIF has been returned (oppsed to an HTTP > error) before sending it to the browser. Any recommendations how to do this? >
Several ways to skin this cat. cURL is your friend. http://php.net/manual/en/ref.curl.php - Use cURL to check the headers for the image/gif header (though this doesn't guarantee that it is a gif...) - store the curl_exec() result (string) into a buffer and check for actual GIF content. *Note* I have no clue what exactly makes up a GIF file, but you can google "GIF file format" and check the file content if you're paranoid. -- Teach a man to fish... NEW? | http://www.catb.org/~esr/faqs/smart-questions.html STFA | http://marc.theaimsgroup.com/?l=php-general&w=2 STFM | http://php.net/manual/en/index.php STFW | http://www.google.com/search?q=php LAZY | http://mycroft.mozdev.org/download.html?name=PHP&submitform=Find+search+plugins
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