HEXT TO IP And IP TO HEX

HexIP.php

<?php 

/*
*
* @author Ganesh Kandu (mailto:kanduganesh@gmail.com)
*
*/

class HexIP{
	
	function IP2Hex($ip) {
		$hex = "";
		$part = explode(".",$ip);
		foreach($part as $value)
		{
			if($value > 255 && $value > -1){
				throw new RuntimeException('The Provided IP is Not Valid');
				die();
			}
			if(strlen($value) < 2){
				$hex .= "0".dechex($value);
			}else{
				$hex .= dechex($value);
			}
		}
		return strtoupper($hex);
	}
	
	function Hex2IP($hex) {
		$ip = "";
		$ippart = array();
		if(strlen($hex) > 8){
				throw new RuntimeException('The Provided Hex is Not Valid');
				die();
		}
		
		$ippart[0] = substr($hex,0,2);
		$ippart[1] = substr($hex,2,2);
		$ippart[2] = substr($hex,4,2);
		$ippart[3] = substr($hex,6,2);
		
		foreach($ippart as $key => $value){
			$ippart[$key] = hexdec($value);
		}
		
		$ip = implode(".",$ippart);
		
		return $ip;
	}
	
}

$a = new HexIP();

echo "<br/>HEXT TO IP<br/>";
echo $a->Hex2IP("C0A80119");
echo "<br/>IP TO HEX<br/>";
echo $a->IP2Hex("192.168.1.25");

?>