Begginer needing help with scraping

[logicfx]

Hello,

I have checked out many of the scripts and tried implementing them to help me scrape 1 single image from a url. Example www.123.com/333.png

 

Getting a script to scrape that image isnt the problem. Im not sure on how to implement the simple curl to save the image every 30mins and name it in successive order so it appears as , 1.jpg, 2.jpg, 3.jpg

 

I am working with a debian 6 server and php would be the easiest way to do this that i can work with. I have searched the web endlessly and still cant produce such thing.

Any help is appreciated.

[blacknight]

this is a simple fuction that will save the image to your server

function save_image($inPath,$outPath)
{
//Download images from remote server
$in=    fopen($inPath, "rb");
$out=   fopen($outPath, "wb");
while ($chunk = fread($in,8192))
{
	fwrite($out, $chunk, 8192);
}
fclose($in);
fclose($out);
if (file_exists($outPath))
{
	return true;
}
else
{
	return false;
}
}