Delete email_address_validator.php
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<?php
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/*
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EmailAddressValidator Class
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http://code.google.com/p/php-email-address-validation/
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Released under New BSD license
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http://www.opensource.org/licenses/bsd-license.php
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Sample Code
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----------------
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$validator = new EmailAddressValidator;
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if ($validator->check_email_address('test@example.org')) {
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// Email address is technically valid
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}
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*/
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class EmailAddressValidator {
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/**
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* Check email address validity
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* @param strEmailAddress Email address to be checked
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* @return True if email is valid, false if not
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*/
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public function check_email_address($strEmailAddress) {
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// If magic quotes is "on", email addresses with quote marks will
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// fail validation because of added escape characters. Uncommenting
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// the next three lines will allow for this issue.
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//if (get_magic_quotes_gpc()) {
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// $strEmailAddress = stripslashes($strEmailAddress);
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//}
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// Control characters are not allowed
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if (preg_match('/[\x00-\x1F\x7F-\xFF]/', $strEmailAddress)) {
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return false;
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}
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// Check email length - min 3 (a@a), max 256
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if (!$this->check_text_length($strEmailAddress, 3, 256)) {
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return false;
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}
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// Split it into sections using last instance of "@"
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$intAtSymbol = strrpos($strEmailAddress, '@');
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if ($intAtSymbol === false) {
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// No "@" symbol in email.
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return false;
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}
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$arrEmailAddress[0] = substr($strEmailAddress, 0, $intAtSymbol);
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$arrEmailAddress[1] = substr($strEmailAddress, $intAtSymbol + 1);
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// Count the "@" symbols. Only one is allowed, except where
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// contained in quote marks in the local part. Quickest way to
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// check this is to remove anything in quotes. We also remove
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// characters escaped with backslash, and the backslash
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// character.
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$arrTempAddress[0] = preg_replace('/\./'
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,''
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,$arrEmailAddress[0]);
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$arrTempAddress[0] = preg_replace('/"[^"]+"/'
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,''
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,$arrTempAddress[0]);
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$arrTempAddress[1] = $arrEmailAddress[1];
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$strTempAddress = $arrTempAddress[0] . $arrTempAddress[1];
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// Then check - should be no "@" symbols.
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if (strrpos($strTempAddress, '@') !== false) {
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// "@" symbol found
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return false;
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}
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// Check local portion
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if (!$this->check_local_portion($arrEmailAddress[0])) {
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return false;
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}
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// Check domain portion
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if (!$this->check_domain_portion($arrEmailAddress[1])) {
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return false;
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}
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// If we're still here, all checks above passed. Email is valid.
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return true;
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}
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/**
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* Checks email section before "@" symbol for validity
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* @param strLocalPortion Text to be checked
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* @return True if local portion is valid, false if not
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*/
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protected function check_local_portion($strLocalPortion) {
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// Local portion can only be from 1 to 64 characters, inclusive.
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// Please note that servers are encouraged to accept longer local
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// parts than 64 characters.
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if (!$this->check_text_length($strLocalPortion, 1, 64)) {
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return false;
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}
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// Local portion must be:
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// 1) a dot-atom (strings separated by periods)
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// 2) a quoted string
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// 3) an obsolete format string (combination of the above)
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$arrLocalPortion = explode('.', $strLocalPortion);
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for ($i = 0, $max = sizeof($arrLocalPortion); $i < $max; $i++) {
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if (!preg_match('.^('
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. '([A-Za-z0-9!#$%&\'*+/=?^_`{|}~-]'
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. '[A-Za-z0-9!#$%&\'*+/=?^_`{|}~-]{0,63})'
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.'|'
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. '("[^\\\"]{0,62}")'
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.')$.'
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,$arrLocalPortion[$i])) {
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return false;
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}
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}
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return true;
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}
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/**
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* Checks email section after "@" symbol for validity
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* @param strDomainPortion Text to be checked
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* @return True if domain portion is valid, false if not
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*/
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protected function check_domain_portion($strDomainPortion) {
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// Total domain can only be from 1 to 255 characters, inclusive
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if (!$this->check_text_length($strDomainPortion, 1, 255)) {
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return false;
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}
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// Check if domain is IP, possibly enclosed in square brackets.
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if (preg_match('/^(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])'
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.'(\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])){3}$/'
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,$strDomainPortion) ||
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preg_match('/^\[(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])'
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.'(\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])){3}\]$/'
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,$strDomainPortion)) {
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return true;
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} else {
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$arrDomainPortion = explode('.', $strDomainPortion);
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if (sizeof($arrDomainPortion) < 2) {
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return false; // Not enough parts to domain
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}
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for ($i = 0, $max = sizeof($arrDomainPortion); $i < $max; $i++) {
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// Each portion must be between 1 and 63 characters, inclusive
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if (!$this->check_text_length($arrDomainPortion[$i], 1, 63)) {
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return false;
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}
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if (!preg_match('/^(([A-Za-z0-9][A-Za-z0-9-]{0,61}[A-Za-z0-9])|'
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.'([A-Za-z0-9]+))$/', $arrDomainPortion[$i])) {
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return false;
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}
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if ($i == $max - 1) { // TLD cannot be only numbers
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if (strlen(preg_replace('/[0-9]/', '', $arrDomainPortion[$i])) <= 0) {
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return false;
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}
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}
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}
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}
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return true;
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}
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/**
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* Check given text length is between defined bounds
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* @param strText Text to be checked
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* @param intMinimum Minimum acceptable length
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* @param intMaximum Maximum acceptable length
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* @return True if string is within bounds (inclusive), false if not
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*/
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protected function check_text_length($strText, $intMinimum, $intMaximum) {
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// Minimum and maximum are both inclusive
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$intTextLength = strlen($strText);
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if (($intTextLength < $intMinimum) || ($intTextLength > $intMaximum)) {
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return false;
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} else {
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return true;
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}
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}
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}
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?>
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