本文實例講述了php輸入數據統一類。分享給大家供大家參考。具體如下：
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<?phpclass cls_request{ private $getdata;//存儲get的數據 private $postdata;//存儲post的數據 private $requestdata;//存儲request的數據 private $filedata;//存儲file的數據 private $cookiedata;//存儲cooki static $_instance;//本類的實例 private function __construct(){ $this->getdata = self::format_data($_GET); $this->postdata = self::format_data($_POST); $this->requestdata = array_merge($this->getdata,$this->postdata); $this->cookiedata = self::format_data($_COOKIE); $this->filedata = self::format_data($_FILES); } //類的初始化，返回cls_request對象 public static function get_instance(){ if(!(self::$_instance instanceof self)){ self::$_instance = new self(); } return self::$_instance; } //獲取GET傳遞過來的數值變量 public function get_num($key){ if(!isset($this->getdata[$key])){ return false; } return $this->to_num($this->getdata[$key]); } //獲取POST傳遞過來的數據變量 public function post_num($key){ if(!isset($this->postdata[$key])){ return false; } return $this->to_num($this->postdata[$key]); } //獲取Request傳遞過來的數值變量 public function request_num($key){ if(!isset($this->requestdata[$key])){ return false; } return $this->to_num($this->requestdata[$key]); } //獲取Cookie傳遞過來的數值變量 public function cookie_num($key){ if(!isset($this->cookiedata[$key])){ return false; } return $this->to_num($this->cookiedata[$key]); } //獲取File傳遞過來的數值變量 public function filedata($key){ return $this->filedata[$key];//返回數組 } //獲取GET傳遞過來的字符串變量 public function get_string($key,$isfilter=true){ if(!isset($this->getdata[$key])){ return false; } if($isfilter){ return $this->filter_string($this->getdata[$key]); }else{ return $this->getdata[$key]; } } //獲取POST傳遞過來的字符串變量 public function post_string($key,$isfilter=true){ if(!isset($this->postdata[$key])){ return false; } if($isfilter){ return $this->filter_string($this->postdata[$key]); }else{ return $this->postdata[$key]; } } //獲取Request傳遞過來的字符串變量 public function request_string($key,$isfilter=true){ if(!isset($this->requestdata[$key])){ return false; } if($isfilter){ return $this->filter_string($this->requestdata[$key]); }else{ return $this->requestdata[$key]; } } //獲取Cookie傳遞過來的字符串變量 public function cookie_string($key,$isfilter=true){ if(!isset($this->cookiedata[$key])){ return false; } if($isfilter){ return $this->filter_string($this->cookiedata[$key]); }else{ return $this->cookiedata[$key]; } } //格式化數據 private function format_data($data){ $result = array(); if(!is_array($data)){ $data = array(); } /* *list()表示用數組的數值給變量賦值。只用于數字索引的數組， *默認從0位開始，按順序下去 *each() */ while(list($key,$value) = each($data)){//不太明白 //處理checkbox之類的數據 if(is_array($value)){ $result[$key]=$value; }else{//普通數據 $result[$key] = trim($value); //刪除字符串兩端空白及其它預定義字符 } } } //轉化數字 private function to_num($num){ if(is_numeric($num)){ return intval($num);//將變量轉為整數 }else{ return false; } } //過換過濾字符串 private function filter_string($data){ if($data===null){ return false; } if(is_array($data)){ foreach($data as $k=>$v){ $data[$k] = htmlspecialchars($v,ENT_QUOTES); //把一些預定義字符轉化為html實體 } return $data; }else{//普通字符串 return htmlspecialchars($data,ENT_QUOTES); } }}?> |
希望本文所述對大家的php程序設計有所幫助。
