本文实例讲述了php实现的表单验证类。分享给大家供大家参考，具体如下：
<?php
/**
* 用法
* use Validate\Validator;
*
* $rules = [
* ['name|名字', 'require|email|in:7,8,9|max:10|min:6|between:6,8|length:2', '名字不能为空|名字必须必须为正确的邮件地址'],
* ['test|测试', 'require'],
* ];
* $data = ['name' => '8gAg:'];
* $validator = new Validator($rules);
* $validator->addRule(['name|名字', 'regex', '/^[0-8|a-z]+$/', '正则验证失败哦']); //可以为二维数组，有|的正则验证只能通过addRule。
* $validator->validate($data);
* $validator->getAllErrors(); //获取所有验证错误 array
* $validator->getError(); //获取第一条验证错误 string
* Validator::in('7,8,9', 8); //静态调用
* Validator::isEmail('375373223@qq.com');
*/
namespace Validate;
class Validator {
//错误信息
private $error = [];
//传入的验证规则
private $validate = [];
//需要验证的参数
private $data = [];
//添加的规则
private $add_rules = [];
//默认错误提示
private $error_msg = [
'require' => ':attribute不能为空',
'number' => ':attribute必须为数字',
'array' => ':attribute必须为数组',
'float' => ':attribute必须为浮点数',
'boolean' => ':attribute必须为布尔值',
'email' => ':attribute必须为正确的邮件地址',
'url' => ':attribute必须为正确的url格式',
'ip' => ':attribute必须为正确的ip地址',
'timestamp' => ':attribute必须为正确的时间戳格式',
'date' => ':attribute必须为正确的日期格式',
'regex' => ':attribute格式不正确',
'in' => ':attribute必须在:range内',
'notIn' => ':attribute必须不在:range内',
'between' => ':attribute必须在:1-:2范围内',
'notBetween' => ':attribute必须不在:1-:2范围内',
'max' => ':attribute最大值为:1',
'min' => ':attribute最小值为:1',
'length' => ':attribute长度必须为:1',
'confirm' => ':attribute和:1不一致',
'gt' => ':attribute必须大于:1',
'lt' => ':attribute必须小于:1',
'egt' => ':attribute必须大于等于:1',
'elt' => ':attribute必须小于等于:1',
'eq' => ':attribute必须等于:1',
];
public function __construct($validate = null) {
$this->validate = $validate;
}
/**
* [validate 验证]
* @param [type] $data [需要验证的参数]
* @return [type] [boolean]
*/
public function validate($data) {
$this->data = $data;
foreach ($this->validate as $key => $item) {
$item_len = count($item);
$name = $item[0];
$rules = $item[1];
$rules = explode('|', $rules);
$message = $item_len > 2 ? explode('|', $item[2]) : null;
$this->check($name, $rules, $message);
}
if(!empty($this->add_rules)) {
$this->checkAddRules();
}
return empty($this->error) ? TRUE : FALSE;
}
/**
* [check 单个字段验证]
* @param [type] $name [description]
* @param [type] $rules [description]
* @param [type] $message [description]
* @return [type] [null]
*/
private function check($name, $rules, $message) {
//$title = $name;
$rule_name = $title = $name;
if(strpos($name, '|')) {
$rule_name = explode('|', $name)[0];
$title = explode('|', $name)[1];
}
foreach ($rules as $i => $rule) {
$validate_data = isset($this->data[$rule_name]) ? $this->data[$rule_name] : null;
$result = $this->checkResult($rule, $validate_data);
if(!$result) {
$error_info = isset($message[$i]) ? $message[$i] : $this->getMessage($title, $rule);
if($error_info) {
array_push($this->error, $error_info);
}
}
}
}
/**
* [getMessage 获取验证失败的信息]
* @param [type] $name [字段名]
* @param [type] $rule [验证规则]
* @return [type] [string OR fail false]
*/
private function getMessage($name, $rule) {
$value1 = '';
$value2 = '';
$range = '';
$error_key = $rule;
if(strpos($rule, ':')) {
$exp_arr = explode(':', $rule);
$error_key = $exp_arr[0];
$range = $exp_arr[1];
$message_value = explode(',', $exp_arr[1]);
$value1 = isset($message_value[0]) ? $message_value[0] : '';
$value2 = isset($message_value[1]) ? $message_value[1] : '';
}
if(isset($this->error_msg[$error_key])) {
return str_replace([':attribute', ':range', ':1', ':2'], [$name, $range, $value1, $value2], $this->error_msg[$error_key]);
}
return false;
}
/**
* [checkResult 字段验证]
* @param [type] $rule [验证规则]
* @param [type] $validate_data [需要验证的数据]
* @return [type] [boolean]
*/
private function checkResult($rule, $validate_data) {
switch ($rule) {
case 'require':
return $validate_data != '';
break;
case 'number':
return filter_var($validate_data, FILTER_SANITIZE_NUMBER_INT);
break;
case 'array':
return is_array($validate_data);
break;
case 'float':
return filter_var($validate_data, FILTER_VALIDATE_FLOAT);
break;
case 'boolean':
return filter_var($validate_data, FILTER_VALIDATE_BOOLEAN);
break;
case 'email':
return filter_var($validate_data, FILTER_VALIDATE_EMAIL);
break;
case 'url':
return filter_var($validate_data, FILTER_SANITIZE_URL);
case 'ip':
return filter_var($validate_data, FILTER_VALIDATE_IP);
break;
case 'timestamp':
return strtotime(date('Y-m-d H:i:s',$validate_data)) == $validate_data;
break;
case 'date': //2017-11-17 12:12:12
return strtotime($validate_data);
break;
default:
if(strpos($rule, ':')) {
$rule_arr = explode(':', $rule);
$func_name = substr($rule, strpos($rule, ':')+1);
return call_user_func_array([$this, $rule_arr[0]], [$func_name, $validate_data]);
}else{
return call_user_func_array([$this, $rule], [$rule, $validate_data]);
}
break;
}
}
/**
* [regex 正则验证]
* @param [type] $rule [description]
* @param [type] $data [description]
* @return [type] [description]
*/
public static function regex($rule, $data) {
return filter_var($data, FILTER_VALIDATE_REGEXP, ["options" => ["regexp" => $rule]]);
}
/**
* [addRule 添加规则格式 []]
* @param [type] $rule [description]
*/
public function addRule($rule) {
if(is_array(current($rule))) {
$this->add_rules = array_merge($this->add_rules, $rule);
}else{
array_push($this->add_rules, $rule);
}
}
/**
* [checkAddRules 添加新的规则的验证]
* @return [type] [description]
*/
public function checkAddRules() {
foreach ($this->add_rules as $key => $item) {
$name = $item[0];
$message = isset($item[3]) ? $item[3] : null;
$rule_name = $title = $name;
if(strpos($name, '|')) {
$rule_name = explode('|', $name)[0];
$title = explode('|', $name)[1];
}
$validate_data = isset($this->data[$rule_name]) ? $this->data[$rule_name] : null;
$result = $this->checkResult($item[1].':'.$item[2], $validate_data);
if(!$result) {
$error_info = isset($message) ? $message : $this->getMessage($title, $item[1]);
if($error_info) {
array_push($this->error, $error_info);
}
}
}
}
/**
* [in description]
* @param [type] $rule [验证规则]
* @param [type] $data [需要验证的数据]
* @return [type] [boolean]
*/
public static function in($rule, $data) {
if(!is_array($rule)) {
$rule = explode(',', $rule);
}
return in_array($data, $rule);
}
/**
* [in description]
* @param [type] $rule [验证规则]
* @param [type] $data [需要验证的数据]
* @return [type] [boolean]
*/
public static function notIn($rule, $data) {
return !$this->in($data, $rule);
}
/**
* [in description]
* @param [type] $rule [验证规则]
* @param [type] $data [需要验证的数据]
* @return [type] [boolean]
*/
public static function between($rule, $data) {
$rule = explode(',', $rule);
return $data >= $rule[0] && $data <= $rule[1];
}
/**
* [in description]
* @param [type] $rule [验证规则]
* @param [type] $data [需要验证的数据]
* @return [type] [boolean]
*/
public static function notBetween($rule, $data) {
return !$this->between($rule, $data);
}
/**
* [in description]
* @param [type] $rule [验证规则]
* @param [type] $data [需要验证的数据]
* @return [type] [boolean]
*/
public static function max($rule, $data) {
return $data <= $rule;
}
/**
* [in description]
* @param [type] $rule [验证规则]
* @param [type] $data [需要验证的数据]
* @return [type] [boolean]
*/
public static function min($rule, $data) {
return $data >= $rule;
}
/**
* [in description]
* @param [type] $rule [验证规则]
* @param [type] $data [需要验证的数据]
* @return [type] [boolean]
*/
public static function length($rule, $data) {
$length = is_array($data) ? count($data) : strlen($data);
return $length == $rule;
}
/**
* [in description]
* @param [type] $rule [验证规则]
* @param [type] $data [需要验证的数据]
* @return [type] [boolean]
*/
public static function confirm($rule, $data) {
return isset($this->data[$rule]) && $data == $this->data[$rule];
}
public static function gt($rule, $data) {
return $data > $rule;
}
public static function lt($rule, $data) {
return $data < $rule;
}
public static function egt($rule, $data) {
return $data >= $rule;
}
public static function elt($rule, $data) {
return $data <= $rule;
}
public static function eq($rule, $data) {
return $data == $rule;
}
/**
* [in 获取验证失败的第一条信息]
* @return [type] [string]
*/
public function getError() {
return count($this->error) > 0 ? $this->error[0] : null;
}
/**
* [getAllErrors 获取所有验证失败的信息]
* @return [type] [array]
*/
public function getAllErrors() {
return $this->error;
}
/**
* [__call 调用自定义函数或者]
* @param [type] $func [验证规则，函数名]
* @param [type] $data [验证数据]
* @return [type] [boollean]
*/
function __call($func, $data) {
$func_arr = get_defined_functions();
if(in_array($func,$func_arr['user'])) {
return call_user_func($func, $data);
}else{
array_push($this->error, '没有' . $func . '这个方法');
}
}
/**
* [__callStatic 静态方法调用自定义函数或者]
* @param [type] $func [验证规则，函数名]
* @param [type] $data [验证数据]
* @return [type] [boollean]
*/
public static function __callStatic($func, $data) {
if(substr($func, 0, 2) == 'is') {
return call_user_func_array([new self, 'checkResult'], [strtolower(substr($func, 2)), $data[0]]);
}
}
}
PS：这里再为大家提供2款非常方便的正则表达式工具供大家参考使用：
JavaScript正则表达式在线测试工具：
http://tools.jb51.net/regex/javascript
正则表达式在线生成工具：
http://tools.jb51.net/regex/create_reg
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