本文实例讲述了PHP验证类的封装与使用方法。分享给大家供大家参考，具体如下：
<?php/** * Created by PhpStorm. * User: jiqing * Date: 18-7-24 * Time: 下午4:36 * 常用验证 */class Valid{ static protected $error; static protected $error_tips = [ "tel" => "手机号格式有误", "email" => "邮箱格式有误", "max_len" => "参数长度不能超过最大长度", "min_len" => "参数长度不能小于最小长度", "required" => "缺少参数" ]; // required|max_len,100|min_len,6 public function validate($field, $rules) { $rules = explode("|", $rules); foreach ($rules as $rule) { $method = null; $param = null; // Check if we have rule parameters if (strstr($rule, ",") !== false) { $rule = explode(",", $rule); $method = "check_".$rule[0]; $param = $rule[1]; $rule = $rule[0]; } else { $method = "check_".$rule; } $method_array = get_class_methods(new Valid()); if (!in_array($method,$method_array)) { self::$error[] = "Method not exist."; } if (!self::$method($field,$param)) { self::$error[] = self::$error_tips[$rule] ? self::$error_tips[$rule] : "参数格式有误"; } } if (count(self::$error) == 0) { return 0; } return self::$error[0]; // 返回第一个错误 } public static function check_required($field) { if (isset($field) && ($field === false || $field === 0 || $field === 0.0 || $field === "0" || !empty($field))) { return true; } else { return false; } } public static function check_tel($field) { if(preg_match("/^1[345678]{1}d{9}$/",$field)){ return true; }else{ return false; } } public static function check_email($field) { if(preg_match("/^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(.[a-zA-Z0-9_-]+)+$/",$field)){ return true; }else{ return false; } } public static function check_max_len($field,$param = null) { if (function_exists("mb_strlen")) { if (mb_strlen($field) <= (int) $param) { return true; } else { return false; } } else { if (strlen($field) <= (int) $param) { return true; } else { return false; } } } public static function check_min_len($field,$param = null) { if (function_exists("mb_strlen")) { if (mb_strlen($field) >= (int) $param) { return true; } else { return false; } } else { if (strlen($field) >= (int) $param) { return true; } else { return false; } } } public static function check_regex($field, $param = null) { $regex = $param; if (preg_match($regex, $field)) { return true; } else { return false; } }}基本满足需求。
vendor("Func.Valid");if ($res = Valid::validate("152","required|regex,/^1[345678]{1}d{9}$/")) { $this->json->setErr(10001,$res); $this->json->Send();}封装很有意思，这个类唯一的亮点，就是可以复合验证。并且支持正则。而且里面的验证方法还可以单独使用。
vendor("Func.Valid");if (!Valid::check_tel("152")) { $this->json->setErr(10001,"手机号有误"); $this->json->Send();}勇敢的封装，利国利民。
继续封装，支持数组传参。
<?php/** * Created by PhpStorm. * User: jiqing * Date: 18-7-24 * Time: 下午4:36 * 常用验证 */class Valid{ static protected $error; static protected $error_tips = [ "tel" => "手机号格式有误", "email" => "邮箱格式有误", "max_len" => "参数长度不能超过最大长度", "min_len" => "参数长度不能小于最小长度", "required" => "缺少参数" ]; /** * @param $validators array array("email" => "required|valid_email") * @param $input array post数据 * @return string */ public function is_valid($validators, $input) { foreach ($validators as $field => $rules) { if (!isset($input[$field]) || empty($input[$field])) { self::$error[] = "缺少参数"; } $rules = explode("|", $rules); foreach ($rules as $rule) { $method = null; $param = null; // Check if we have rule parameters if (strstr($rule, ",") !== false) { $rule = explode(",", $rule); $method = "check_".$rule[0]; $param = $rule[1]; $rule = $rule[0]; } else { $method = "check_".$rule; } $method_array = get_class_methods(new Valid()); if (!in_array($method,$method_array)) { self::$error[] = "Method not exist."; } if (!self::$method($input[$field],$param)) { self::$error[] = self::$error_tips[$rule] ? self::$error_tips[$rule] : "参数格式有误"; } } } if (count(self::$error) == 0) { return 0; } return self::$error[0]; // 返回第一个错误 } /** * @param $field string 验证字段 * @param $rules string 验证规则 required|max_len,100|min_len,6 * @return string */ public function validate($field, $rules) { $rules = explode("|", $rules); foreach ($rules as $rule) { $method = null; $param = null; // Check if we have rule parameters if (strstr($rule, ",") !== false) { $rule = explode(",", $rule); $method = "check_".$rule[0]; $param = $rule[1]; $rule = $rule[0]; } else { $method = "check_".$rule; } $method_array = get_class_methods(new Valid()); if (!in_array($method,$method_array)) { self::$error[] = "Method not exist."; } if (!self::$method($field,$param)) { self::$error[] = self::$error_tips[$rule] ? self::$error_tips[$rule] : "参数格式有误"; } } if (count(self::$error) == 0) { return 0; } return self::$error[0]; // 返回第一个错误 } public static function check_required($field) { if (isset($field) && ($field === false || $field === 0 || $field === 0.0 || $field === "0" || !empty($field))) { return true; } else { return false; } } /** * 简写 * @param $field * @return bool */ public static function check_r($field) { if (isset($field) && ($field === false || $field === 0 || $field === 0.0 || $field === "0" || !empty($field))) { return true; } else { return false; } } public static function check_tel($field) { if(preg_match("/^1[345678]{1}d{9}$/",$field)){ return true; }else{ return false; } } public static function check_email($field) { if(preg_match("/^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(.[a-zA-Z0-9_-]+)+$/",$field)){ return true; }else{ return false; } } public static function check_max_len($field,$param = null) { if (function_exists("mb_strlen")) { if (mb_strlen($field) <= (int) $param) { return true; } else { return false; } } else { if (strlen($field) <= (int) $param) { return true; } else { return false; } } } public static function check_min_len($field,$param = null) { if (function_exists("mb_strlen")) { if (mb_strlen($field) >= (int) $param) { return true; } else { return false; } } else { if (strlen($field) >= (int) $param) { return true; } else { return false; } } } public static function check_regex($field, $param = null) { $regex = $param; if (preg_match($regex, $field)) { return true; } else { return false; } }}使用如下
vendor("Func.Valid");$validators = [ "tel" => "required|tel", "name" => "required", "email" => "r|email", "password" => "r|min_len,6|max_len,12"];if ($err = Valid::is_valid($validators,$_POST)) { $this->json->setErr(10001,$err); $this->json->Send();}继续优化！支持错误提示中，添加参数。
<?php/** * Created by PhpStorm. * User: jiqing * Date: 18-7-24 * Time: 下午4:36 * 常用验证 */class Valid{ static protected $error; /** * @param $validators array array("email" => "required|valid_email") * @param $input array post数据 * @return string */ public function is_valid($validators, $input) { foreach ($validators as $field => $rules) { if (!isset($input[$field]) || empty($input[$field])) { self::$error[] = "缺少参数"; } $rules = explode("|", $rules); foreach ($rules as $rule) { $method = null; $param = null; // Check if we have rule parameters if (strstr($rule, ",") !== false) { $rule = explode(",", $rule); $method = "check_".$rule[0]; $param = $rule[1]; $rule = $rule[0]; } else { $method = "check_".$rule; } $method_array = get_class_methods(new Valid()); if (!in_array($method,$method_array)) { self::$error[] = "Method not exist."; } if (!self::$method($input[$field],$param)) { self::$error[] = self::get_error_tips($rule,$param); } } } if (count(self::$error) == 0) { return 0; } return self::$error[0]; // 返回第一个错误 } /** * @param $field string 验证字段 * @param $rules string 验证规则 required|max_len,100|min_len,6 * @return string */ public function validate($field, $rules) { $rules = explode("|", $rules); foreach ($rules as $rule) { $method = null; $param = null; // Check if we have rule parameters if (strstr($rule, ",") !== false) { $rule = explode(",", $rule); $method = "check_".$rule[0]; $param = $rule[1]; $rule = $rule[0]; } else { $method = "check_".$rule; } $method_array = get_class_methods(new Valid()); if (!in_array($method,$method_array)) { self::$error[] = "Method not exist."; } if (!self::$method($field,$param)) { self::$error[] = self::get_error_tips($rule,$param); } } if (count(self::$error) == 0) { return 0; } return self::$error[0]; // 返回第一个错误 } /** * 灵活获取参数 * @param $rule * @param $param */ public static function get_error_tips($rule,$param) { $error_tips = [ "tel" => "手机号格式有误", "email" => "邮箱格式有误", "max_len" => "参数长度不能超过最大长度".$param, "min_len" => "参数长度不能小于最小长度".$param, "required" => "缺少参数", "r" => "缺少参数" ]; return $error_tips[$rule] ? $error_tips[$rule] : "参数格式有误"; } public static function check_required($field) { if (isset($field) && ($field === false || $field === 0 || $field === 0.0 || $field === "0" || !empty($field))) { return true; } else { return false; } } /** * 简写 * @param $field * @return bool */ public static function check_r($field) { if (isset($field) && ($field === false || $field === 0 || $field === 0.0 || $field === "0" || !empty($field))) { return true; } else { return false; } } public static function check_tel($field) { if(preg_match("/^1[345678]{1}d{9}$/",$field)){ return true; }else{ return false; } } public static function check_email($field) { if(preg_match("/^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(.[a-zA-Z0-9_-]+)+$/",$field)){ return true; }else{ return false; } } public static function check_max_len($field,$param = null) { if (function_exists("mb_strlen")) { if (mb_strlen($field) <= (int) $param) { return true; } else { return false; } } else { if (strlen($field) <= (int) $param) { return true; } else { return false; } } } public static function check_min_len($field,$param = null) { if (function_exists("mb_strlen")) { if (mb_strlen($field) >= (int) $param) { return true; } else { return false; } } else { if (strlen($field) >= (int) $param) { return true; } else { return false; } } } public static function check_regex($field, $param = null) { $regex = $param; if (preg_match($regex, $field)) { return true; } else { return false; } }}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
更多关于PHP相关内容感兴趣的读者可查看本站专题：《php正则表达式用法总结》、《PHP数组(Array)操作技巧大全》、《PHP基本语法入门教程》、《php字符串(string)用法总结》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》
希望本文所述对大家PHP程序设计有所帮助。
