Php implements file download and multifile Upload

Php implements file download and multifile Upload file download:

Html:

Download 1.rar
Download 1.jpg
     
Download 1.jpg through the program
Download nv.jpg

Php processing:

   
File upload:
  
Html code:
  
  
    
  
Php code:
  
Common. func. php
 
  
  
    
Upload. func1.php
  
  
  
   $ Val) {$ files [$ I] ['name'] = $ file ['name'] [$ key]; $ files [$ I] ['type'] = $ file ['type'] [$ key]; $ files [$ I] ['tmp _ name'] = $ file ['tmp _ name'] [$ key]; $ files [$ I] ['error'] = $ file ['error'] [$ key]; $ files [$ I] ['size'] = $ file ['size'] [$ key]; $ I ++ ;}} return $ files ;} /*** Upload a single file, multiple single files, and multiple files * @ param array $ fileInfo * @ param string $ path * @ param string $ flag * @ param number $ maxSize * @ param array $ allowExt * @ return string */fun Ction uploadFile ($ fileInfo, $ path = '. /uploads ', $ flag = true, $ maxSize = 1048576, $ allowExt = array ('jpeg', 'jpg ', 'PNG', 'GIF ')) {// $ flag = true; // $ allowExt = array ('jpeg ', 'jpg', 'GIF', 'PNG '); // $ maxSize = 1048576; // 1 M // Determine the error code if ($ fileInfo ['error'] === UPLOAD_ERR_ OK) {// detect if ($ fileInfo ['size']> $ maxSize) {$ res ['Mes '] = $ fileInfo ['name'] after uploading. 'upload file too large ';} $ ext = getExt ($ fileInfo ['name']); // checks the file type of the uploaded file if (! In_array ($ ext, $ allowExt) {$ res ['Mes '] = $ fileInfo ['name']. 'invalid file type';} // checks whether the image type is true if ($ flag) {if (! Getimagesize ($ fileInfo ['tmp _ name']) {$ res ['Mes '] = $ fileInfo ['name']. 'Not real Image type';} // checks whether the object is uploaded through http post. if (! Is_uploaded_file ($ fileInfo ['tmp _ name']) {$ res ['Mes '] = $ fileInfo ['name']. 'file not uploaded through http post ';} if ($ res) return $ res; // $ path = '. /uploads '; if (! File_exists ($ path) {mkdir ($ path, 0777, true); chmod ($ path, 0777) ;}$ uniName = getUniName (); $ destination = $ path. '/'. $ uniName. '. '. $ ext; if (! Move_uploaded_file ($ fileInfo ['tmp _ name'], $ destination) {$ res ['Mes '] = $ fileInfo ['name']. 'File moving failed';} $ res ['Mes '] = $ fileInfo ['name']. 'uploaded successfully'; $ res ['dest'] = $ destination; return $ res;} else {// Match error message switch ($ fileInfo ['error']) {case 1: $ res ['Mes '] = 'the uploaded file exceeds the value of the upload_max_filesize option in the PHP configuration file'; break; case 2: $ res ['Mes '] = 'size beyond the size limit of form MAX_FILE_SIZE'; break; case 3: $ res ['Mes '] = 'upload part of file'; break; case 4: $ res ['Mes '] = 'file not selected'; break; case 6: $ res ['Mes'] = 'no temporary directory found '; break; case 7: case 8: $ res ['Mes '] = 'system error'; break;} return $ res ;}}
  
DoAction5.php
  
  
  
   ';$uploadFiles[]=$res['dest'];}$uploadFiles=array_values(array_filter($uploadFiles));print_r($uploadFiles);
  
The above is implemented through functions and downloaded and encapsulated into a class:
  
Html:
  
  
  
Upload. class. php
  
  
  
   FileName = $ fileName; $ this-> maxSize = $ maxSize; $ this-> allowMime = $ allowMime; $ this-> allowExt = $ allowExt; $ this-> uploadPath = $ uploadPath; $ this-> imgFlag = $ imgFlag; $ this-> fileInfo = $ _ FILES [$ this-> fileName];} /*** check whether an error occurred while uploading the file * @ return boolean */protected function checkError () {if (! Is_null ($ this-> fileInfo) {if ($ this-> fileInfo ['error']> 0) {switch ($ this-> fileInfo ['error']) {case 1: $ this-> error = 'exceeds the value of the upload_max_filesize option in the PHP configuration file '; break; case 2: $ this-> error = 'exceeds the value set by MAX_FILE_SIZE in the form '; break; case 3: $ this-> error = 'File partially upload'; break; case 4: $ this-> error = 'upload file not selected'; break; case 6: $ this-> error = 'temporary directory not found '; break; case 7: $ this-> error = 'File writable '; break; case 8: $ this-> error = 'File Upload interrupted due to PHP extensions'; break;} return False;} else {return true ;}} else {$ this-> error = 'File Upload error '; return false ;}} /*** check the size of the uploaded file * @ return boolean */protected function checkSize () {if ($ this-> fileInfo ['size']> $ this-> maxSize) {$ this-> error = 'upload file is too large '; return false;} return true;}/*** check extension * @ return boolean */protected function checkExt () {$ this-> ext = strtolower (pathinfo ($ this-> fileInfo ['name'], PATHINFO_EXTENSION); if (! In_array ($ this-> ext, $ this-> allowExt) {$ this-> error = 'unsupported extension '; return false;} return true ;} /*** check file type ** @ return boolean */protected function checkMime () {if (! In_array ($ this-> fileInfo ['type'], $ this-> allowMime) {$ this-> error = 'unsupported file type '; return false ;} return true;}/*** check whether the image is real * @ return boolean */protected function checkTrueImg () {if ($ this-> imgFlag) {if (! @ Getimagesize ($ this-> fileInfo ['tmp _ name']) {$ this-> error = 'not a real image'; return false;} return true ;}} /*** check whether the * @ return boolean */protected function checkHTTPPost () {if (! Is_uploaded_file ($ this-> fileInfo ['tmp _ name']) {$ this-> error = 'file not uploaded through http post '; return false ;} return true;}/*** display error */protected function showError () {exit (''. $ this-> error. '');}/*** create */protected function checkUploadPath () {if (! File_exists ($ this-> uploadPath) {mkdir ($ this-> uploadPath, 0777, true );}} /*** generate a unique string * @ return string */protected function getUniName () {return md5 (uniqid (microtime (true), true ));} /*** Upload file ** @ return string */public function uploadFile () {if ($ this-> checkError () & $ this-> checkSize () & $ this-> checkExt () & $ this-> checkMime () & $ this-> checkTrueImg () & $ this-> checkHTTPPost ()) {$ this-> checkUploadPath (); $ this-> uniName = $ this-> getUniName (); $ this-> destination = $ this-> uploadPath. '/'. $ this-> uniName. '. '. $ this-> ext; if (@ move_uploaded_file ($ this-> fileInfo ['tmp _ name'], $ this-> destination) {return $ this-> destination ;} else {$ this-> error = 'File movement failed'; $ this-> showError () ;}} else {$ this-> showError ();}}}
  
DoAction6.php
  
  
  
   uploadFile();echo $dest;