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PHP custom validation classes and regular expressions_PHP tutorial
- WBOYOriginal
- 2016-07-13 10:27:05758browse
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';
}