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<?php |
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declare(strict_types=1); |
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namespace cse\helpers; |
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/** |
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* Class Email |
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* |
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* @package cse\helpers |
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*/ |
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class Email |
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{ |
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const UTF8 = 'UTF-8'; |
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const PATTERN = '(?!(?:(?:\\x22?\\x5C[\\x00-\\x7E]\\x22?)|(?:\\x22?[^\\x5C\\x22]\\x22?)){255,})(?!(?:(?:\\x22?\\x5C[\\x00-\\x7E]\\x22?)|(?:\\x22?[^\\x5C\\x22]\\x22?)){65,}@)(?:(?:[\\x21\\x23-\\x27\\x2A\\x2B\\x2D\\x2F-\\x39\\x3D\\x3F\\x5E-\\x7E]+)|(?:\\x22(?:[\\x01-\\x08\\x0B\\x0C\\x0E-\\x1F\\x21\\x23-\\x5B\\x5D-\\x7F]|(?:\\x5C[\\x00-\\x7F]))*\\x22))(?:\\.(?:(?:[\\x21\\x23-\\x27\\x2A\\x2B\\x2D\\x2F-\\x39\\x3D\\x3F\\x5E-\\x7E]+)|(?:\\x22(?:[\\x01-\\x08\\x0B\\x0C\\x0E-\\x1F\\x21\\x23-\\x5B\\x5D-\\x7F]|(?:\\x5C[\\x00-\\x7F]))*\\x22)))*@(?:(?:(?!.*[^.]{64,})(?:(?:(?:xn--)?[a-z0-9]+(?:-+[a-z0-9]+)*\\.){1,126}){1,}(?:(?:[a-z][a-z0-9]*)|(?:(?:xn--)[a-z0-9]+))(?:-+[a-z0-9]+)*)|(?:\\[(?:(?:IPv6:(?:(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){7})|(?:(?!(?:.*[a-f0-9][:\\]]){7,})(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,5})?::(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,5})?)))|(?:(?:IPv6:(?:(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){5}:)|(?:(?!(?:.*[a-f0-9]:){5,})(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,3})?::(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,3}:)?)))?(?:(?:25[0-5])|(?:2[0-4][0-9])|(?:1[0-9]{2})|(?:[1-9]?[0-9]))(?:\\.(?:(?:25[0-5])|(?:2[0-4][0-9])|(?:1[0-9]{2})|(?:[1-9]?[0-9]))){3}))\\]))'; |
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/** |
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* Hide email |
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* |
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* @param $email |
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* |
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* @return string |
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*/ |
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public static function hide(string $email): string |
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{ |
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list($name, $domain) = explode('@', $email); |
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$length = mb_strlen($name, self::UTF8); |
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if ($length <= 4) { |
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// abcd => a*** |
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$result = mb_substr($name, 0, 1, self::UTF8) . str_repeat('*', $length - 1); |
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} elseif ($length > 4 && $length <= 6) { |
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// abcdef => a****f |
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$result = mb_substr($name, 0, 1, self::UTF8) |
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. str_repeat('*', $length - 2) |
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. mb_substr($name, -1, 1, self::UTF8); |
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} else { |
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// abcdefghijk => a****f****k |
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// abcdefghijkl => a****f*****k |
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$result = mb_substr($name, 0, 1, self::UTF8) |
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. str_repeat('*', (int) floor(($length - 3) / 2)) |
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. mb_substr($name, (int) ceil(($length - 2) / 2), 1, self::UTF8) |
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. str_repeat('*', (int) ceil(($length - 3) / 2)) |
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. mb_substr($name, -1, 1, self::UTF8); |
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} |
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return $result . '@' . $domain; |
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} |
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/** |
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* Check domain to email |
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* |
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* @param string $email |
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* @param string $domain |
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* |
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* @return bool |
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*/ |
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public static function checkDomain(string $email, string $domain): bool |
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{ |
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$email = trim($email); |
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return strlen($email) == 0 ? false : (preg_match('/^.*@' . $domain . '$/i', $email) === 1); |
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} |
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/** |
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* Check email |
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* |
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* @param string $email |
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* |
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* @return bool |
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*/ |
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public static function is(string $email): bool |
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{ |
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return (bool) filter_var($email, FILTER_VALIDATE_EMAIL); |
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} |
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/** |
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* Check email exist to string |
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* |
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* @param string $string |
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* @param string $pattern |
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* |
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* @return bool |
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*/ |
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public static function exist(string $string, string $pattern = self::PATTERN): bool |
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{ |
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return preg_match('/' . $pattern . '/iD', $string) === 1; |
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} |
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/** |
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* Extract email to string |
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* |
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* @param string $string |
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* @param string $pattern |
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* |
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* @return null|string |
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*/ |
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public static function extract(string $string, string $pattern = self::PATTERN): ?string |
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{ |
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return preg_match('/' . $pattern . '/iD', $string, $email) === 1 ? $email[0] : null; |
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} |
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/** |
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* Extract all email to string |
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* |
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* @param string $string |
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* @param string $pattern |
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* |
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* @return null|array |
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*/ |
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public static function extractAll(string $string, string $pattern = self::PATTERN): ?array |
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{ |
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preg_match_all('/' . $pattern . '/i', $string, $email); |
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return empty($email[0]) ? null : $email[0]; |
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} |
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} |
cs-eliseev /
helpers-email
