Unified input data entry-php Tutorial

Unified entry class of input data

Http://blog.qita.in /? Posting = 494 /** * Obtain unified input entries */ 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 cookies 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 method * * @ Return cls_request object */ Public static function get_instance () { If (! (Self: $ _ instance instanceof self )) { Self: $ _ instance = new self (); } Return self: $ _ instance; } /** * GET the value variable passed by GET. * * @ Param string $ key * @ Return int or big int */ Publicfunction get_num ($ key) { If (! Isset ($ this-> getdata [$ key]) { Return false; } Return $ this-> to_num ($ this-> getdata [$ key]); } /** * Get the numeric variable passed by POST * * @ Param string $ key * @ Return int or big int */ Publicfunction post_num ($ key) { If (! Isset ($ this-> postdata [$ key]) { Return false; } Return $ this-> to_num ($ this-> postdata [$ key]); } /** * Get the value variable passed in the REQUEST. * * @ Param string $ key * @ Return int or big int */ 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. * * @ Param string $ key * @ Return int or big int */ Public function cookie_num ($ key) { If (! Isset ($ this-> cookiedata [$ key]) { Return false; } Return $ this-> to_num ($ this-> cookiedata [$ key]); } /** * Get the variable value passed by Files. * * @ Param string $ key * @ Return array */ Public function file_data ($ key) { Return $ this-> filedata [$ key]; } /** * GET the string variable passed by GET. * * @ Param string $ key * @ Param boolen $ whether isfilter is filtered * @ Return string */ Publicfunction 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]; } } /** * Get the string variable passed by POST * * @ Param string $ key * @ Param boolen $ whether isfilter is filtered * @ Return string */ Publicfunction 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]; } } /** * Get the string variable passed in the REQUEST * * @ Param string $ key * @ Param boolen $ whether isfilter is filtered * @ Return string */ Publicfunction 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]; } } /** * Get the string variable passed by the COOKIE * * @ Param string $ key * @ Param boolen $ whether isfilter is filtered * @ Return string */ 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 and store the data. * * @ Param array $ data */ Privatefunction format_data ($ data) { $ Result = array (); If (! Is_array ($ data )) { $ Data = array (); } While (list ($ key, $ value) = each ($ data )) { // Process data such as checkbox If (is_array ($ value )) { $ Result [$ key] = $ value; } Else // common data { $ Result [$ key] = trim ($ value ); } } Return $ result; } /** * Convert to a number * * @ Param string $ num * @ Return int or big int or false */ Private function to_num ($ num) { If (is_numeric ($ num )) { Return intval ($ num ); } Else { Return false; } } /** * Convert and filter strings * * @ Param string/array $ data * @ Return 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 ); } Return $ data; } Else { Return htmlspecialchars ($ data, ENT_QUOTES ); } } }