Php file Upload class complete instance

This article mainly introduces the php file Upload class, and analyzes the php file Upload type judgment, size computer restrictions, and other skills in the form of a complete example, for more information about php file uploading, see the example in this article. We will share this with you for your reference. The details are as follows:

/** $ File = new class_file ($ file_array, "flash/"); $ file-> set_allow_type (array ("jpg", "jpeg", "gif ")); $ file-> is_limit_size (); if (! $ File-> allow_file_size () {echo $ file-> error; exit;} if (! $ File-> allow_file_type () {echo $ file-> error; exit ();} else if (! $ File-> uploadfile () {echo $ file-> error; exit;} **/<? Php class class_file {private $ file_type; private $ file_size; private $ save_path; private $ file_path; private $ allow_type = array (); private $ allow_size; private $ file_name; private $ flag = false; private $ mime_type; private $ is_limit_size = false; public $ error; // Constructor function class_file ($ file_array, $ save_path) {$ this-> file_path = $ file_array ['tmp _ name']; $ this-> file_size = $ file_array ['size']; $ this-> file _ Type = $ file_array ['type']; $ this-> save_path = $ save_path;} // sets the allowed file type function set_allow_type ($ allow_type) {$ this-> allow_type = $ allow_type;} // sets the allowed file size function set_allow_size ($ allow_size) {$ this-> allow_size = $ allow_size ;} // File upload public function uploadfile () {if (! $ This-> allow_file_type () {$ this-> file_name ();} if (move_uploaded_file ($ this-> file_path, $ this-> save_path. $ this-> file_name) {return true;} else {$ this-> error = "file Upload failed"; return ;}} // Determine the file upload type function allow_file_type () {$ this-> file_name (); if (in_array ($ this-> mime_type, $ this-> allow_type )) {return true;} else {$ this-> error = "Upload type not allowed"; exit ();}} // Determine the file upload size function allow_file_size ($ size = 100) {if ($ th Is-> is_limit_size) {$ this-> set_allow_size ($ size); if ($ this-> allow_size >=$ this-> file_size) {return true ;} else {$ this-> error = "the file upload size limit is exceeded" ;}}// whether to restrict the file size function is_limit_size () {$ this-> is_limit_size = true ;} // file type and file name function file_name () {$ this-> mime_type = substr ($ this-> file_type, strpos ($ this-> file_type ,"/") + 1); if ($ this-> mime_type = "pjpeg") {$ this-> mime_type = "jpg ";} if ($ this-> mime_type = "x-ms -Wma ") {$ this-> mime_type =" wma ";} if ($ this-> mime_type =" x-ms-wmv ") {$ this-> mime_type = "wmv" ;}$ this-> file_name = date ("YmdHis "). ". $ this-> mime_type ";} function _ get_file_name () {return $ this-> file_name ;}}?>