Encapsulation of PHP Single file, multiple single file, multi-file upload function

Form://s.php//to choose to upload a file when you can select more than one file at a time, then add multiple= "multiple", but also pay attention to Name= "MyFile1" and Name= "myfile[" The difference, single file, multi-file upload.
 
  
 <title>Untitled Document</title>Package for upload function://ss.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;} For single-file, multiple single-file, multiple-file uploads//The default allows uploading of files only for picture types, and only these picture types: $allowExt =array (' jpeg ', ' jpg ', ' png ', ' gif '), and check if the uploaded file is a real picture $ flag=true//Default upload Saved folder is local ' uploads ' folder, allow upload file size up to 2Mfunction uploadfile ($fileInfo, $path = './uploads ', $flag =true, $ALLOWEXT =array (' jpeg ', ' jpg ', ' png ', ' gif '), $maxSize =2097152) {//Judgment error number if ($fileInfo [' Error ']===upload_err_ok) {// Detects the size of the upload file if ($fileInfo [' Size ']> $maxSize) {$res [' mes ']= $fileInfo [' name ']. Upload file too large ';} $ext =getext ($fileInfo [' name ']);//detects the file type of the uploaded file if (!in_array ($ext, $allowExt)) {$res [' mes ']= $fileInfo [' name ']. ' illegal file type ';} Detects if the picture type is true if ($flag) {if (!getimagesize ($fileInfo [' tmp_name ')]) {$res [' mes ']= $fileInfo [' name ']. ' Not a real picture type ';}} Detects if the file is uploaded via HTTP post (!is_uploaded_file ($fileInfo [' tmp_name ')]) {$res [' mes ']= $fileInfo [' name ']. The file is not uploaded via HTTP post; if ($rES) return $res; If the error message is not displayed, return $res with if (@ $res);//$path = './uploads ';//If this folder is not present, create an if (!file_exists ($path)) {mkdir ($path, 0777,true); chmod ($path, 0777);} New file name unique $uniname=getuniname (); $destination = $path. ' /'. $uniName. '. $ext; the//@ symbol is used to not allow the client to see the error message, or to delete the IF (! @move_uploaded_file ($fileInfo [' Tmp_name '], $destination)) {$res [' mes ']= $fileInfo [' name ']. ' File move failed ';} $res [' mes ']= $fileInfo [' name ']. ' Upload success '; $res [' Dest ']= $destination; return $res;} else{//matching error message//NOTE! The error message does not have 5switch ($fileInfo [' ERROR ']) {Case 1: $res [' mes '] = ' The upload file exceeds the value of the upload_max_filesize option in the PHP configuration file '; Break;case 2: $res [ ' mes ' = ' exceeds the size of the HTML form max_file_size limit '; Break;case 3: $res [' mes '] = ' file part is uploaded '; break;case 4: $res [' mes '] = ' no option to upload file '; Break;case 6: $res [' mes '] = ' No temporary directory found '; Break;case 7: $res [' mes '] = ' file write failed '; Break;case 8: $res [' mes '] = ' uploaded file interrupted by php extension '; break;} return $res;}}? >//common.ss.php
 Post-upload file operation:
 '; $uploadFiles []= $res [' dest '];//if the error message is not displayed, use @ $uploadFiles []= $res [' dest '];} $uploadFiles =array_values (Array_filter ($uploadFiles));//This makes it easy to save to the database Print_r ($uploadFiles);//Print to view the results of uploading and saving?>

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