Upload image via FTP

[mrxxlphp]

Hi guys, I have a script that gabs a static JPEG picture from a webcam and then SCP's the file up to a web server. The script is very slow and eats system resources (90%+).

Is there a way to do this without saving the file locally? i.e. store it in memory before uploading it via FTP?

<?php
$url = 'http://admin:password@webcamIP/img/picture.cgi?';
$img = 'webcam.jpg';
file_put_contents($img, file_get_contents($url));

error_reporting(E_ALL);
ini_set('display_errors', 1);
        $ch = curl_init();
        $localfile = 'webcam.jpg';
        $fp = fopen($localfile, 'r');
        curl_setopt($ch, CURLOPT_URL, 'sftp://admin:password@somehost.1/somepath/'.$localfile);
        curl_setopt($ch, CURLOPT_UPLOAD, 1);
        curl_setopt($ch, CURLOPT_INFILE, $fp);
        curl_setopt($ch, CURLOPT_INFILESIZE, filesize($localfile));
        curl_exec ($ch);
        $error_no = curl_errno($ch);
        curl_close ($ch);
        if ($error_no == 0) {
                $error = 'File uploaded succesfully.';
        } else {
                $error = 'File upload error.';
        }
echo $error.' '.$error_no;
?>

[sneakyimp]

Depending on how your server is configured, you might be able to use [man]file_put_contents[/man]. This example is in the user comments on that page:

Please note that when saving using an FTP host, an additional stream context must be passed through telling PHP to overwrite the file.

<?php
 /* set the FTP hostname */
 $user = "test";
 $pass = "myFTP";
 $host = "example.com";
 $file = "test.txt";
 $hostname = $user . ":" . $pass . "@" . $host . "/" . $file;

 /* the file content */
 $content = "this is just a test.";

 /* create a stream context telling PHP to overwrite the file */
 $options = array('ftp' => array('overwrite' => true));
 $stream = stream_context_create($options);

 /* and finally, put the contents */
 file_put_contents($hostname, $content, 0, $stream);
?>

You might also want to read [man]stream_context_create[/man].