check existance of image on remote server with allow_url_fopen=off

Question

I am working on a site which is fetching images from a cdn server that has allow_url_fopen in turned off means allow_url_fopen=off.

The problem is that before showing the image in main site we have to check the existence of image in cdn server. If image exists then we will show it otherwise not.

file_exists and file_get_contents will not work as they require allow_url_fopen=on.

Is there any other way to do it???

Any help will be appreciated.

Thanks

like mentioned many times before, the alternative would be to check if cURL is available. And if it isnt, you have to try any of the solutions given in stackoverflow.com/questions/3880628/… — Gordon
– Gordon, Commented Feb 9, 2012 at 13:39
possible duplicate of PHP, need help using cURL as allow_url_fopen is disabled — Gordon
– Gordon, Commented Feb 9, 2012 at 13:44

Narek · Accepted Answer · 2012-02-09 13:40:17Z

0

You can use cUrl:

$curl = curl_init($url); curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); $result = curl_exec($curl); if(empty($result)){die('No image');}

answered Feb 9, 2012 at 13:40

Narek

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2 Comments

Akhil Thayyil Over a year ago

This is not a proper way , because curl result may contain http headers to, so better check the status code of http header

Narek Over a year ago

Never see what curl_exec returns headers. As I know for headers you need to add curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

Akhil Thayyil · Accepted Answer · 2012-02-09 13:45:08Z

You can use the CURL library to get the file via HTTP method. If that is used , if the file exists, the status code will be success otherwise not found status code will be returned. Another options is to use the socket library function like fsockopen to connect to that server and access the files via FTP if that is enabled.

Go through the examples given http://php.net/manual/en/function.fsockopen.php http://php.net/manual/en/function.fsockopen.php

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