Php input data unified class instance _ PHP Tutorial

Php unified input data Class instance. This article mainly introduces the php unified input data Class. the instance analyzes various conversion techniques for input data, which has some reference value, A friend who needs a unified php input data Class instance

This article mainly introduces the unified class of php input data. The example analyzes various conversion techniques for input data and has some reference value. For more information, see

This example describes the unified class of php input data. Share it with you for your reference. The details are as follows:

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Class cls_request { Private $ getdata; // Store get data Private $ postdata; // Store post data Private $ requestdata; // store the request data Private $ filedata; // stores file data Private $ cookiedata; // store cooki Static $ _ instance; // instance of this class 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 ); } // Class initialization, return the cls_request object Public static function get_instance (){ If (! (Self: $ _ instance instanceof self )){ Self: $ _ instance = new self (); } Return self: $ _ instance; } // Obtain the value variable passed by GET. Public function get_num ($ key ){ If (! Isset ($ this-> getdata [$ key]) { Return false; } Return $ this-> to_num ($ this-> getdata [$ key]); } // Obtain the data variable passed by POST Public function post_num ($ key ){ If (! Isset ($ this-> postdata [$ key]) { Return false; } Return $ this-> to_num ($ this-> postdata [$ key]); } // Obtain the value variable passed by the Request Public function request_num ($ key ){ If (! Isset ($ this-> requestdata [$ key]) { Return false; } Return $ this-> to_num ($ this-> requestdata [$ key]); } // Obtain the value variable passed by the Cookie Public function cookie_num ($ key ){ If (! Isset ($ this-> cookiedata [$ key]) { Return false; } Return $ this-> to_num ($ this-> cookiedata [$ key]); } // Obtain the numeric variable passed by File Public function filedata ($ key ){ Return $ this-> filedata [$ key]; // returns an array } // GET the string variable passed by GET 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]; } } // Obtain the string variable passed by POST 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]; } } // Obtain the string variable passed by the Request 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]; } } // Obtain the string variable passed by the Cookie 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]; } } // Format the data Private function format_data ($ data ){ $ Result = array (); If (! Is_array ($ data )){ $ Data = array (); } /* * List () indicates that the variable is assigned a value using the array value. Used only for numeric index arrays, * Starts from 0 by default and goes down in order * Each () */ While (list ($ key, $ value) = each ($ data) {// not quite clear // Process data such as checkbox If (is_array ($ value )){ $ Result [$ key] = $ value; } Else {// common data $ Result [$ key] = trim ($ value ); // Delete white spaces and other predefined characters at both ends of the string } } } // Convert numbers Private function to_num ($ num ){ If (is_numeric ($ num )){ Return intval ($ num); // Convert the variable to an integer } Else { Return false; } } // Exchange filter string 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 ); // Convert some predefined characters into html objects } Return $ data; } Else {// normal string Return htmlspecialchars ($ data, ENT_QUOTES ); } } } ?>

I hope this article will help you with php programming.

This article introduces the unified class of php input data. The example analyzes various conversion techniques for input data and has some reference value...