PHP custom validation classes and regular expressions_PHP tutorial

php common validation classes and regular rules

Regular expressions will be continuously updated when new ones are encountered

include "ValidateParameterConfig.php";

class Validation

　{

private static function getRexp($rexp)

　{

　$_rexp = array (

　'letter_number'=>'/^[0-9A-Za-z]+$/',//Only alphanumeric characters including uppercase and lowercase letters

　'account'=>'/^[0-9A-Za-z_]+$/',//Only alphanumeric underscores include uppercase and lowercase letters

　'ids'=>'/^[0-9]+(,[0-9]+)*$/',//Verify multiple ID types separated by ',' such as '1,2 ,3,4,5'

　'number'=>'/^[0-9]+$/',//Only numbers can be used

　'personal_card'=>'/^[0-9A-Za-z]+$/',//ID card

　'email'=>'/^([a-zA-Z0-9_.-])+@(([a-zA-Z0-9-])+.)+([a-zA- Z0-9]{2,4})+$/',//Email

　'date'=>'/^((((19|20)d{2})-(0?(1|[3-9])|1[012])-(0?[1 -9]|[12]d|30))|(((19|20)d{2})-(0?[13578]|1[02])-31)|(((19|20)d {2})-0?2-(0?[1-9]|1d|2[0-8]))|(((19|20)([13579][26]|[2468][048 ]|0[48]))|(2000))-0?2-29))$/'//Date, including leap years

　);

　if (isset($_rexp[$rexp])) {

return $_rexp[$rexp];

　} else {

return $rexp_not_defind;

　}

　}

Public static function validate($data, $config)

　{

　$_config = ValidateParameterConfig::getConfig($config);

$k = self::allowExist($data, $_config);

　if ($k !== null) {

return $k;

　}

foreach($_config as $k=>$c) {

　if (isset($data[$k]))

　{

　if(isset($c['rexp']))

　{

　if (self::vRexp( $data[$k], $c['rexp']) === false) {

return $k;

　}

　}

　if (isset($c['length']))

　{

　if (self::vLength($data[$k], $c['length']))

　{

return $k;

　}

　}

　if (isset($c['min_length']))

　{

　if (!self::vMinLength($data[$k], $c['min_length']))

　{

return $k;

　}

　}

　if (isset($c['max_length']))

　{

　if (!self::vMaxLength($data[$k], $c['max_length']))

　{

return $k;

　}

　}

　}

　}

return null;

　}

private static function allowExist($data, $config)

　{

foreach ($config as $k=>$v)

　{

　if (!isset($v['allow_exist']) || $v['allow_exist'] == true) {

　if (!isset($data[$k]))

　{

return $k;

　}

　}

　}

return null;

　}

Public static function vRexp($data, $rexp) {

$_rexp = self::getRexp($rexp);

　if (preg_match($_rexp, $data) == false) {

return false;

　}

return true;

　}

public static function vLength($data, $l) {

　if (strlen(trim($data)) == $l) {

return false;

　}

return true;

　}

public static function vMinLength($data, $l) {

　if (strlen(trim($data)) < $l) {

return false;

　}

return true;

　}

public static function vMaxLength($data, $l) {

　if (strlen(trim($data)) > $l) {

return false;

　}

return true;

　}

public static function vLetterNumber($data) {

　if (preg_match(self::getRexp('letter_number'), $data) == false) {

return false;

　}

return true;

　}

public static function vLetterNumber_($data) {

　if (preg_match(self::getRexp('letter_number_'), $data) == false) {

return false;

　}

return true;

　}

public static function vNumber($data) {

　if (preg_match(self::getRexp('number'), $data) == false) {

return false;

　}

return true;

　}

public static function vEmail($data) {

　if (preg_match(self::getRexp('email'), $data) == false) {

return false;

　}

return true;

　}

class ValidateParameterConfig

　{

public static function getConfig ($key)

　{

//'allow_exist'=>true or allow_exist does not exist means that the parameter must be passed

　$_config = array(

'test'=>array(

　'letter_number'=>array('rexp'=>'letter_number', 'allow_exist'=>true),

　'number'=>array('rexp'=>'number', 'min_length'=>1'allow_exist'=>false),

'account'=>array('rexp'=>'account', 'max_length'=>20),

　)

　);

　if (isset($_config[$key])) {

return $_config[$key];

　} else {

return $config_not_defind;

　}

　}

　}

Usage example:

The parameters sent from the application are

$arr = array('letter_number'=>'abc123', 'account'=>'acb1234_');

　//Parameter verification

$_msg = Validation::validate($arr, 'test');

　if ($_msg !== null) {

Return $_msg . ' is invalid parameter';

　}

http://www.bkjia.com/PHPjc/820421.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/820421.htmlTechArticlephp Common validation classes and regular regular expressions will be continuously updated when new ones are encountered include ValidateParameterConfig.php; class Validation { private static function getRexp($rexp)...