How to use THNIC public check domain available API

You can use both $_GET and $_POST method to send domainname to check

API support .in.th, .co.th, .or.th, .ac.th, mi.th, .go.th, .net.th and punycode.th (ex. xn--42cl2bj2hxbd2g.th)

Note !

If your domain is Reserved Word, Incorrect format (Ex. domain...in.th) or Unavailable, Server Will Return 0

Sample Code

/* check.php */
if((isset($_POST["domain"]) and $_POST["domain"] != "") or (isset($_GET["domain"]) and $_GET["domain"] != "")) {

	$url = "https://www.thnic.co.th/domain_avail_api.php";
	if(isset($_GET["domain"]) and $_GET["domain"] != "") {
		$url .= "?domain=".trim($_GET["domain"]);
	}
	 
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL, $url);
	curl_setopt($ch, CURLOPT_HEADER, 0);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
	curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
	curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);

	/* Method : POST
	* Name : domain
	* Example : domain=domain.in.th
	*/ 
	if(isset($_POST["domain"]) and $_POST["domain"] != "") {
		curl_setopt($ch, CURLOPT_POST, true);
		curl_setopt($ch, CURLOPT_POSTFIELDS, "domain=".$_POST["domain"]);
	}

	/* $returndata[0] = 0 or 1 
	 * return 0 (false) is domainname is not available
	 * return 1 (true) is domainname is available
	 * */
	$returndata = curl_exec($ch);
	curl_close($ch);
    
    /* you can echo data by this command */
	print_r($returndata);
} else {
	/* This section for use post method sent domainname to check */
	echo "<form action='check.php' method='POST'>";
	/* type domainname in format fulldomain.in.th 
	 * if domainname incorrect format host will always return false
	 */
	echo "<input type='text' name='domain' />";
	echo "<input type='submit' value='OK' />";
	echo "</form>";
}
/* end check.php */

This sample code provide get and post method