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<?php |
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declare(strict_types=1); |
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5
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function valid_url($input) |
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{ |
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$input = (string) $input; |
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if (empty($input)) { |
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return false; |
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} |
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return preg_match('|^http(s)?://[a-z0-9-]+(.[a-z0-9-]+)*(:[0-9]+)?(/.*)?$|i', $input); |
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} |
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function valid_email($email) |
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{ |
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$input = (string) $email; |
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if (empty($email)) { |
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return false; |
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} |
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$isValid = true; |
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$atIndex = strrpos($email, '@'); |
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if (is_bool($atIndex) && !$atIndex) { |
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$isValid = false; |
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} else { |
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$domain = substr($email, $atIndex + 1); |
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$local = substr($email, 0, $atIndex); |
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$localLen = strlen($local); |
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$domainLen = strlen($domain); |
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if ($localLen < 1 || $localLen > 64) { |
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// local part length exceeded |
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$isValid = false; |
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} else { |
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if ($domainLen < 1 || $domainLen > 255) { |
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// domain part length exceeded |
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$isValid = false; |
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} else { |
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if ('.' == $local[0] || '.' == $local[$localLen - 1]) { |
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// local part starts or ends with '.' |
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$isValid = false; |
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} else { |
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if (preg_match('/\.\./', $local)) { |
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// local part has two consecutive dots |
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$isValid = false; |
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} else { |
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if (!preg_match('/^[A-Za-z0-9\-\.]+$/', $domain)) { |
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// character not valid in domain part |
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$isValid = false; |
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} else { |
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if (preg_match('/\.\./', $domain)) { |
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// domain part has two consecutive dots |
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$isValid = false; |
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} else { |
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if (!preg_match('/^(\.|[A-Za-z0-9!#%&`_=\/$\'*+?^{}|~.-])+$/', |
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str_replace('\\', '', $local)) |
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) { |
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// character not valid in local part unless |
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// local part is quoted |
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if (!preg_match('/^"(\"|[^"])+"$/', str_replace('\\', '', $local))) { |
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$isValid = false; |
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} |
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} |
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} |
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} |
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} |
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} |
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} |
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} |
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if ($isValid && !(checkdnsrr($domain, 'MX') || checkdnsrr($domain, 'A'))) { |
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// domain not found in DNS |
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$isValid = false; |
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} |
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} |
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return $isValid; |
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} |
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function valid_cc_number($cc_number) |
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{ |
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/* Validate; return value is card type if valid. */ |
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$card_type = ''; |
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$card_regexes = [ |
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"/^4\d{12}(\d\d\d){0,1}$/" => 'visa', |
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"/^5[12345]\d{14}$/" => 'mastercard', |
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"/^3[47]\d{13}$/" => 'amex', |
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"/^6011\d{12}$/" => 'discover', |
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"/^30[012345]\d{11}$/" => 'diners', |
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"/^3[68]\d{12}$/" => 'diners', |
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]; |
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90
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foreach ($card_regexes as $regex => $type) { |
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if (preg_match($regex, $cc_number)) { |
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$card_type = $type; |
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break; |
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} |
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} |
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if (!$card_type) { |
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return false; |
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} |
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/* mod 10 checksum algorithm */ |
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$revcode = strrev($cc_number); |
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$checksum = 0; |
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for ($i = 0; $i < strlen($revcode); ++$i) { |
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$current_num = (int) $revcode[$i]; |
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if ($i & 1) { /* Odd position */ |
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$current_num *= 2; |
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} |
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/* Split digits and add. */ |
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$checksum += $current_num % 10; |
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if ($current_num > 9 |
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) { |
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++$checksum; |
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} |
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} |
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118
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if (0 == $checksum % 10) { |
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return $card_type; |
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} else { |
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return false; |
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} |
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} |
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125
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function valid_cnp($cnp) |
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{ |
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$const = '279146358279'; |
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$cnp = trim($cnp); |
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preg_match("|^([1256])(\d{2})(\d{2})(\d{2})(\d{6})$|ims", $cnp, $results); |
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if (count($results) < 1) { |
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return false; |
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} |
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$mf = $results[1] + 0; |
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if (5 == $mf || 6 == $mf) { |
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$year_add = 2000; |
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} else { |
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$year_add = 1900; |
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} |
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$year = $year_add + $results[2]; |
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$month = $results[3] + 0; |
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$day = $results[4] + 0; |
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if (!checkdate($month, $day, $year)) { |
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return false; |
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} |
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149
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$suma = 0; |
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for ($i = 0; $i < 12; ++$i) { |
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$suma += $const[$i] * $cnp[$i]; |
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} |
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$rest = $suma % 11; |
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$c13 = $cnp[12] + 0; |
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if (!(($rest < 10 && $rest == $c13) || (10 == $rest && 1 == $c13))) { |
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return false; |
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} |
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161
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162
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return true; |
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163
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} |
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bytic /
validator
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