<?
/*
10 Digit Phone Number Handling Class
by: Josh Houghtelin <burnmytime@gmail.com> www.burnmytime.com

// $phone_number can be any format. ex: (555)555.5555 15555555555 555-555-555 1-555-555-5555
$phone = new PhoneNumber();
$phone->areacode($phone_number); // returns the area code of the phone number.
$phone->prefix($phone_number); // returns the prefix of the phone number.
$phone->number($phone_number); // returns the last four digits of the phone number.
$phone->last4digits($phone_number); // returns entire phone number just digits.
$phone->formatted(int[0-3],$phone_number); // returns phone number pre-formatted.
	// Formats.
	// 0   (xxx) xxx-xxx
	// 1   xxx-xxx-xxxx
	// 2   xxx.xxx.xxx
	// 3   xxx xxxxxx
*/

class PhoneNumber {
		
	private function clean($phone){
		//$clean_phone = preg_replace("^[a-zA-Z._%-+-()]^",'',$phone);
		//remove all non digit charactures from the phone number.
		$clean_phone = preg_replace("[\D]",'',$phone);
		// Make sure 1 isn't the first number.
		if($clean_phone[0] == 1){$clean_phone = substr($clean_phone,1,10);}
		// See if it's a 9 digit number.
		if(strlen($clean_phone) != 10){echo "Error: Parsing Invalid Phone Number."; exit();}
		// Send back all the plain digits.
		return $clean_phone;
	}
	
	public function formatted($style,$phone){
		switch($style){
			case 0: // (xxx) xxx-xxxx
				return "(".$this->areacode($phone).") ".$this->prefix($phone)."-".$this->last4digits($phone);
				break;
			case 1: // xxx-xxx-xxxx
				return $this->areacode($phone)."-".$this->prefix($phone)."-".$this->last4digits($phone);
				break;
			case 2: // xxx.xxx.xxxx
				return $this->areacode($phone).".".$this->prefix($phone).".".$this->last4digits($phone);
				break;		
			case 3: // xxx xxx-xxxx
				return $this->areacode($phone)." ".$this->prefix($phone)."".$this->last4digits($phone);
				break;								
			default: // xxxxxxxxxx
				return $this->digits($phone);
				break;				
		}
	}
	
	public function areacode($phone){
		return substr($this->clean($phone),0,3);
	}
	
	public function prefix($phone){
		return substr($this->clean($phone),3,3);
	}
	
	public function last4digits($phone){
		return substr($this->clean($phone),6,4);
	}
	
	public function digits($phone){
		return $this->clean($phone);
	}
}

// TESTS..  REMOVE EVERYTHING BELOW THIS.

//$myphone = "5551112532";
//$myphone = "(555)111-2532";
//$myphone = "(555) 111_2532";
//$myphone = "555.111.2532";
$myphone = "1(555)_ejsz&%111-2532*";

$phone = new PhoneNumber();

echo $phone->areacode($myphone)."<br />";
echo $phone->prefix($myphone)."<br />";
echo $phone->last4digits($myphone)."<br />";
echo $phone->digits($myphone)."<br />";
echo $phone->formatted(0,$myphone)."<br />";
echo $phone->formatted(1,$myphone)."<br />";
echo $phone->formatted(2,$myphone)."<br />";
echo $phone->formatted(3,$myphone)."<br />";
?>