note 47552 added to function.filesize
| From: | bkimble at ebaseweb dot com | Date: | Fri, 19 Nov 2004 23:33:43 +0000 |
| Subject: | note 47552 added to function.filesize | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-80786@lists.php.net to get a copy of this message | ||
In addition to the handy function Kris posted, here is an upgraded version that does basic http
authentication as well.
<?php
/*
* (mixed)remote_filesize($uri,$user='',$pw='')
* returns the size of a remote stream in bytes or
* the string 'unknown'. Also takes user and pw
* incase the site requires authentication to access
* the uri
*/
function remote_filesize($uri,$user='',$pw='')
{
// start output buffering
ob_start();
// initialize curl with given uri
$ch = curl_init($uri);
// make sure we get the header
curl_setopt($ch, CURLOPT_HEADER, 1);
// make it a http HEAD request
curl_setopt($ch, CURLOPT_NOBODY, 1);
// if auth is needed, do it here
if (!empty($user) && !empty($pw))
{
$headers = array('Authorization: Basic ' . base64_encode($user.':'.$pw));
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
}
$okay = curl_exec($ch);
curl_close($ch);
// get the output buffer
$head = ob_get_contents();
// clean the output buffer and return to previous
// buffer settings
ob_end_clean();
// gets you the numeric value from the Content-Length
// field in the http header
$regex = '/Content-Length:\s([0-9].+?)\s/';
$count = preg_match($regex, $head, $matches);
// if there was a Content-Length field, its value
// will now be in $matches[1]
if (isset($matches[1]))
{
$size = $matches[1];
}
else
{
$size = 'unknown';
}
return $size;
}
?>
----
Manual Page -- http://www.php.net/manual/en/function.filesize.php
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