Convert the code php to Ajax or jQuery? (reciprocal link checker)

How to convert the code below to Ajax or jQuery?
Ajax or jQuery as the existence of links be investigated. => reciprocal link checker Ajax or jQuery validation.


		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL, 'http://www.zigweb.ir');
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
		$contents = curl_exec($ch);
		curl_close($ch);
		$string = str_replace('/', '\\/', $ural);
		$link = "/$string/si";
		if(preg_match($link, $contents)) {
			echo "yes";
		} else
		echo "no";
		}

You can’t really CONVERT it to jQuery or Ajax, but you can use it along with jQuery and Ajax.

Please explain further.
How is this?

You can use that in conjunction with jQuery’s ajax functions.

http://api.jquery.com/jQuery.ajax/

But I saw that is ajax and PHP together to use.
How is this?

You know when you visit a web page (perhaps a php web page) and you see the results in your web browser?

Well AJAX visits similar web pages and receives the result as data. There’s no magic to it.