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| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> <script language="javascript" type="text/javascript"> function AddInput(){ var input=document.createElement('input'); var br=document.createElement('br'); input.setAttribute('type','file'); input.setAttribute('name','files[]'); document.myForm.appendChild(br); document.myForm.appendChild(input); } </script> </head> <body> <?php
class UploadFile { protected $user_post_file = array(); protected $save_file_path; protected $max_file_size; protected $last_error; protected $allow_type = array('gif', 'jpg', 'png', 'zip', 'rar', 'txt', 'doc', 'pdf','docx'); protected $final_file_path; protected $save_info = array();
function __construct($file, $path, $size = 2097152, $type = '') { $this->user_post_file = $file; if(!is_dir($path)){ mkdir($path); chmod($path,0777); } $this->save_file_path = $path; $this->max_file_size = $size; if ($type != '') $this->allow_type = $type; }
function upload() { for ($i = 0; $i < count($this->user_post_file['name']); $i++) { if ($this->user_post_file['error'][$i] == 0) { $name = $this->user_post_file['name'][$i]; $tmpname = $this->user_post_file['tmp_name'][$i]; $size = $this->user_post_file['size'][$i]; $mime_type = $this->user_post_file['type'][$i]; $type = $this->getFileExt($this->user_post_file['name'][$i]); if (!$this->checkSize($size)) { $this->last_error = "The file size is too big. File name is: ".$name; $this->halt($this->last_error); continue; } if (!$this->checkType($type)) { $this->last_error = "Unallowable file type: .".$type." File name is: ".$name; $this->halt($this->last_error); continue; } if(!is_uploaded_file($tmpname)) { $this->last_error = "Invalid post file method. File name is: ".$name; $this->halt($this->last_error); continue; } $basename = $this->getBaseName($name, ".".$type); $basename = iconv("UTF-8","gb2312", $basename); $saveas = $basename.time().".".$type; $this->final_file_path = $this->save_file_path."/".$saveas; if(!move_uploaded_file($tmpname, $this->final_file_path)) { $this->last_error = $this->user_post_file['error'][$i]; $this->halt($this->last_error); continue; } $this->save_info[] = array("name" => $name, "type" => $type, "mime_type" => $mime_type, "size" => $size, "saveas" => $saveas, "path" => $this->final_file_path); } } return count($this->save_info); }
function getSaveInfo() { return $this->save_info; }
function checkSize($size) { if ($size > $this->max_file_size) { return false; } else { return true; } }
function checkType($extension) { foreach ($this->allow_type as $type) { if (strcasecmp($extension , $type) == 0) return true; } return false; }
function halt($msg) { printf("<b><UploadFile Error:></b> %s <br>\n", $msg); }
function getFileExt($filename) { $stuff = pathinfo($filename); return $stuff['extension']; }
function getBaseName($filename, $type) { $basename = basename($filename, $type); return $basename; } } if (!empty($_POST['submit'])) { $upload = new UploadFile($_FILES['files'], './tmp'); $num = $upload->upload(); if ($num != 0) { echo "上传成功<br>"; echo $num."个文件上传成功"; } else { echo "上传失败<br>"; } } ?> <form name="myForm" enctype="multipart/form-data" method="POST" action=""> <input type="file" name="files[]"> <input type="submit" name="submit" value="上传"><a href="#" onclick="AddInput()">再上传一张</a> </form> </body> </html>
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