Functions to check the right format for Phone Number, Postal Code and Email for Canada.

verifCanada.php

<?php    
   /* ====================================== North America Phone validation ==== */
    
	function ValidatePhone($mValue){
	  $sPattern = '/^[\(]?[0-9]{3}[\)]?[-. ]?[0-9]{3}[-. ]?[0-9]{4}$/';
	  return preg_match($sPattern, $mValue);
	}

	/* ====================================== Canadian Code Postal validation ==== */
	
	function ValidatePostal($mValue, $sRegion = ''){
	  $mValue = strtolower($mValue);
	  $sFirst = substr($mValue, 0, 1);
	  $sRegion = strtolower($sRegion);
	
	  $aRegion = array(
	    'nl' => 'a',
	    'ns' => 'b',
	    'pe' => 'c',
	    'nb' => 'e',
	    'qc' => array('g', 'h', 'j'),
	    'on' => array('k', 'l', 'm', 'n', 'p'),
	    'mb' => 'r',
	    'sk' => 's',
	    'ab' => 't',
	    'bc' => 'v',
	    'nt' => 'x',
	    'nu' => 'x',
	    'yt' => 'y'
	  );
		
	  if (preg_match('/[abceghjlkmnprstvxy]/', $sFirst) && !preg_match('/[dfioqu]/', $mValue) && preg_match('/^\w\d\w[- ]?\d\w\d$/', $mValue))
	  {
	    if (!empty($sRegion) && array_key_exists($sRegion, $aRegion))
	    {
	      if (is_array($aRegion[$sRegion]) && in_array($sFirst, $aRegion[$sRegion]))
	      {
	        return true;
	      }
	      else if (is_string($aRegion[$sRegion]) && $sFirst == $aRegion[$sRegion])
	      {
	        return true;
	      }
	    }
	    else if (empty($sRegion))
	    {
	      return true;
	    }
	  }
	
	  return false;
	}


	/* ===================================================== Email validation ==== */

	#
	# RFC 822/2822/5322 Email Parser
	#
	# By Cal Henderson <[email protected]>
	#
	# This code is dual licensed:
	# CC Attribution-ShareAlike 2.5 - http://creativecommons.org/licenses/by-sa/2.5/
	# GPLv3 - http://www.gnu.org/copyleft/gpl.html
	#
	# $Revision$
	#
	
	##################################################################################
	
	function is_valid_email_address($email, $options=array()){
	
		$defaults = array(
			'allow_comments'	=> true,
			'public_internet'	=> true, 
		);
		
		$opts = array();
		foreach ($defaults as $k => $v) $opts[$k] = isset($options[$k]) ? $options[$k] : $v;
		$options = $opts;
		$no_ws_ctl	= "[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f]";
		$alpha		= "[\\x41-\\x5a\\x61-\\x7a]";
		$digit		= "[\\x30-\\x39]";
		$cr		= "\\x0d";
		$lf		= "\\x0a";
		$crlf		= "(?:$cr$lf)";
		$obs_char	= "[\\x00-\\x09\\x0b\\x0c\\x0e-\\x7f]";
		$obs_text	= "(?:$lf*$cr*(?:$obs_char$lf*$cr*)*)";
		$text		= "(?:[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f]|$obs_text)";
		$text		= "(?:$lf*$cr*$obs_char$lf*$cr*)";
		$obs_qp		= "(?:\\x5c[\\x00-\\x7f])";
		$quoted_pair	= "(?:\\x5c$text|$obs_qp)";
		$wsp		= "[\\x20\\x09]";
		$obs_fws	= "(?:$wsp+(?:$crlf$wsp+)*)";
		$fws		= "(?:(?:(?:$wsp*$crlf)?$wsp+)|$obs_fws)";
		$ctext		= "(?:$no_ws_ctl|[\\x21-\\x27\\x2A-\\x5b\\x5d-\\x7e])";
		$ccontent	= "(?:$ctext|$quoted_pair)";
		$comment	= "(?:\\x28(?:$fws?$ccontent)*$fws?\\x29)";
		$cfws		= "(?:(?:$fws?$comment)*(?:$fws?$comment|$fws))";
		$outer_ccontent_dull	= "(?:$fws?$ctext|$quoted_pair)";
		$outer_ccontent_nest	= "(?:$fws?$comment)";
		$outer_comment		= "(?:\\x28$outer_ccontent_dull*(?:$outer_ccontent_nest$outer_ccontent_dull*)+$fws?\\x29)";
		$atext		= "(?:$alpha|$digit|[\\x21\\x23-\\x27\\x2a\\x2b\\x2d\\x2f\\x3d\\x3f\\x5e\\x5f\\x60\\x7b-\\x7e])";
		$atom		= "(?:$cfws?(?:$atext)+$cfws?)";
		$qtext		= "(?:$no_ws_ctl|[\\x21\\x23-\\x5b\\x5d-\\x7e])";
		$qcontent	= "(?:$qtext|$quoted_pair)";
		$quoted_string	= "(?:$cfws?\\x22(?:$fws?$qcontent)*$fws?\\x22$cfws?)";
		$quoted_string	= "(?:$cfws?\\x22(?:$fws?$qcontent)+$fws?\\x22$cfws?)";
		$word		= "(?:$atom|$quoted_string)";
		$obs_local_part	= "(?:$word(?:\\x2e$word)*)";
		$obs_domain	= "(?:$atom(?:\\x2e$atom)*)";
		$dot_atom_text	= "(?:$atext+(?:\\x2e$atext+)*)";
		$dot_atom	= "(?:$cfws?$dot_atom_text$cfws?)";
		$dtext		= "(?:$no_ws_ctl|[\\x21-\\x5a\\x5e-\\x7e])";
		$dcontent	= "(?:$dtext|$quoted_pair)";
		$domain_literal	= "(?:$cfws?\\x5b(?:$fws?$dcontent)*$fws?\\x5d$cfws?)";
		$local_part	= "(($dot_atom)|($quoted_string)|($obs_local_part))";
		$domain		= "(($dot_atom)|($domain_literal)|($obs_domain))";
		$addr_spec	= "$local_part\\x40$domain";
		
		if (strlen($email) > 254) return 0;
		
		if ($options['allow_comments']){
			$email = email_strip_comments($outer_comment, $email, "(x)");
		}
		
		if (!preg_match("!^$addr_spec$!", $email, $m)){
			return 0;
		}
		
		$bits = array(
			'local'			=> isset($m[1]) ? $m[1] : '',
			'local-atom'		=> isset($m[2]) ? $m[2] : '',
			'local-quoted'		=> isset($m[3]) ? $m[3] : '',
			'local-obs'		=> isset($m[4]) ? $m[4] : '',
			'domain'		=> isset($m[5]) ? $m[5] : '',
			'domain-atom'		=> isset($m[6]) ? $m[6] : '',
			'domain-literal'	=> isset($m[7]) ? $m[7] : '',
			'domain-obs'		=> isset($m[8]) ? $m[8] : '',
		);
		
		if ($options['allow_comments']){
			$bits['local']	= email_strip_comments($comment, $bits['local']);
			$bits['domain']	= email_strip_comments($comment, $bits['domain']);
		}
		
		if (strlen($bits['local']) > 64) return 0;
		if (strlen($bits['domain']) > 255) return 0;
		
		if (strlen($bits['domain-literal'])){
		
			$Snum			= "(\d{1,3})";
			$IPv4_address_literal	= "$Snum\.$Snum\.$Snum\.$Snum";
			$IPv6_hex		= "(?:[0-9a-fA-F]{1,4})";
			$IPv6_full		= "IPv6\:$IPv6_hex(?:\:$IPv6_hex){7}";
			$IPv6_comp_part		= "(?:$IPv6_hex(?:\:$IPv6_hex){0,7})?";
			$IPv6_comp		= "IPv6\:($IPv6_comp_part\:\:$IPv6_comp_part)";
			$IPv6v4_full		= "IPv6\:$IPv6_hex(?:\:$IPv6_hex){5}\:$IPv4_address_literal";
			$IPv6v4_comp_part	= "$IPv6_hex(?:\:$IPv6_hex){0,5}";
			$IPv6v4_comp		= "IPv6\:((?:$IPv6v4_comp_part)?\:\:(?:$IPv6v4_comp_part\:)?)$IPv4_address_literal";
		
			if (preg_match("!^\[$IPv4_address_literal\]$!", $bits['domain'], $m)){
		
				if (intval($m[1]) > 255) return 0;
				if (intval($m[2]) > 255) return 0;
				if (intval($m[3]) > 255) return 0;
				if (intval($m[4]) > 255) return 0;
		
			}else{
		
				while (1){
		
					if (preg_match("!^\[$IPv6_full\]$!", $bits['domain'])){
						break;
					}
		
					if (preg_match("!^\[$IPv6_comp\]$!", $bits['domain'], $m)){
						list($a, $b) = explode('::', $m[1]);
						$folded = (strlen($a) && strlen($b)) ? "$a:$b" : "$a$b";
						$groups = explode(':', $folded);
						if (count($groups) > 7) return 0;
						break;
					}
		
					if (preg_match("!^\[$IPv6v4_full\]$!", $bits['domain'], $m)){
		
						if (intval($m[1]) > 255) return 0;
						if (intval($m[2]) > 255) return 0;
						if (intval($m[3]) > 255) return 0;
						if (intval($m[4]) > 255) return 0;
						break;
					}
		
					if (preg_match("!^\[$IPv6v4_comp\]$!", $bits['domain'], $m)){
						list($a, $b) = explode('::', $m[1]);
						$b = substr($b, 0, -1); # remove the trailing colon before the IPv4 address
						$folded = (strlen($a) && strlen($b)) ? "$a:$b" : "$a$b";
						$groups = explode(':', $folded);
						if (count($groups) > 5) return 0;
						break;
					}
		
					return 0;
				}
			}			
		}else{
		
			$labels = explode('.', $bits['domain']);
		
			if ($options['public_internet']){
				if (count($labels) == 1) return 0;
			}
		
			foreach ($labels as $label){
		
				if (strlen($label) > 63) return 0;
				if (substr($label, 0, 1) == '-') return 0;
				if (substr($label, -1) == '-') return 0;
			}
		
			if ($options['public_internet']){
				if (preg_match('!^[0-9]+$!', array_pop($labels))) return 0;
			}
		}
		
		return 1;
	}
		
	function email_strip_comments($comment, $email, $replace=''){
		while (1){
			$new = preg_replace("!$comment!", $replace, $email);
			if (strlen($new) == strlen($email)){return $email;}
			$email = $new;
		}
	}

	##################################################################################
?>