Get remote file size using URL in PHP [duplicate]

Answer 1

You must perform a HEAD request. This will tell the server that you're only interested in the HTTP headers.

stream_context_set_default(
    array(
        'http' => array(
            'method' => 'HEAD'
        )
    )
);
$headers = get_headers('http://example.com');

This will return an array of headers. You must find the content-length item which has the file size (number of bytes).

Answer 2

You can use curl_getinfo() function to get the remote file size.

 $ch = curl_init('http://www.google.co.in/images/srpr/logo4w.png');

 curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
 curl_setopt($ch, CURLOPT_HEADER, TRUE);
 curl_setopt($ch, CURLOPT_NOBODY, TRUE);

 $data = curl_exec($ch);
 $size = curl_getinfo($ch, CURLINFO_CONTENT_LENGTH_DOWNLOAD);

 curl_close($ch);
 echo $size;