<html> <body> <form method="post" action="./upload.php" name="frmUpload" enctype="multipart/form-data" > <input type="file" name="userfile" style="WIDTH: 282px"> <input type="submit" align="center" name="upfiles" value="确定"> </form> <form method="post" action="./upload.php" name="frmUpload" enctype="multipart/form-data" > <input type="file" name="userfile[]" style="WIDTH: 282px"> <input type="file" name="userfile[]" style="WIDTH: 282px"> <input type="file" name="userfile[]" style="WIDTH: 282px"> <input type="submit" align="center" name="upfiles" value="确定"> </form> </body> </html>
upload.php
<?php class File_upload{ public $upload_path='./upload/';//上传文件的路径 public $allow_type=array();//允许上传的文件类型 public $max_size='20480';//允许的最大文件大小 public $overwrite=false;//是否设置成覆盖模式 public $renamed=false;//是否直接使用上传文件的名称，还是系统自动命名 /** * 私有变量 */ private $upload_file=array();//保存上传成功文件的信息 private $upload_file_num=0;//上传成功文件的数目 private $succ_upload_file=array();//成功保存的文件信息 /** * 构造器 * * @param string $upload_path * @param string $allow_type * @param string $max_size */ public function __construct($upload_path='./upload/',$allow_type='jpg|bmp|png|gif|jpeg',$max_size='204800') { $this->set_upload_path($upload_path); $this->set_allow_type($allow_type); $this->max_size=$max_size; $this->get_upload_files(); } /** * 设置上传路径，并判定 * * @param string $path */ public function set_upload_path($path) { if(file_exists($path)){ if(is_writeable($path)){ $this->upload_path=$path; }else{ if(@chmod($path,'0666')) $this->upload_path=$path; } }else{ if(@mkdir($path,'0666')){ $this->upload_path=$path; } } } //设置上传文件类型 public function set_allow_type($types){ $this->allow_type=explode("|",$types); } //上传文件 public function get_upload_files() { foreach ($_FILES AS $key=>$field) { $this->get_upload_files_detial($key); } } //上传文件数据存放到数组中 public function get_upload_files_detial($field){ if(is_array($_FILES["$field"]['name'])) { for($i=0;$i<count($_FILES[$field]['name']);$i++) { if(0==$_FILES[$field]['error'][$i]) { $this->upload_file[$this->upload_file_num]['name']=$_FILES[$field]['name'][$i]; $this->upload_file[$this->upload_file_num]['type']=$_FILES[$field]['type'][$i]; $this->upload_file[$this->upload_file_num]['size']=$_FILES[$field]['size'][$i]; $this->upload_file[$this->upload_file_num]['tmp_name']=$_FILES[$field]['tmp_name'][$i]; $this->upload_file[$this->upload_file_num]['error']=$_FILES[$field]['error'][$i]; $this->upload_file_num++; } } } else { if(0==$_FILES["$field"]['error']) { $this->upload_file[$this->upload_file_num]['name']=$_FILES["$field"]['name']; $this->upload_file[$this->upload_file_num]['type']=$_FILES["$field"]['type']; $this->upload_file[$this->upload_file_num]['size']=$_FILES["$field"]['size']; $this->upload_file[$this->upload_file_num]['tmp_name']=$_FILES["$field"]['tmp_name']; $this->upload_file[$this->upload_file_num]['error']=$_FILES["$field"]['error']; $this->upload_file_num++; } } } /** * 检查上传文件是构满足指定条件 * */ public function check($i) { if(!empty($this->upload_file[$i]['name'])){ //检查文件大小 if($this->upload_file[$i]['size']>$this->max_size*1024)$this->upload_file[$i]['error']=2; //设置默认服务端文件名 $this->upload_file[$i]['filename']=$this->upload_path.$this->upload_file[$i]['name']; //获取文件路径信息 $file_info=pathinfo($this->upload_file[$i]['name']); //获取文件扩展名 $file_ext=$file_info['extension']; //检查文件类型 if(!in_array($file_ext,$this->allow_type))$this->upload_file[$i]['error']=5; //需要重命名的 if($this->renamed){ list($usec, $sec) = explode(" ",microtime()); $this->upload_file[$i]['filename']=$sec.substr($usec,2).'.'.$file_ext; unset($usec); unset($sec); } //检查文件是否存在 if(file_exists($this->upload_file[$i]['filename'])){ if($this->overwrite){ @unlink($this->upload_file[$i]['filename']); }else{ $j=0; do{ $j++; $temp_file=str_replace('.'.$file_ext,'('.$j.').'.$file_ext,$this->upload_file[$i]['filename']); }while (file_exists($temp_file)); $this->upload_file[$i]['filename']=$temp_file; unset($temp_file); unset($j); } } //检查完毕 } else $this->upload_file[$i]['error']=6; } /** * 上传文件 * * @return true */ public function upload() { $upload_msg=''; for($i=0;$i<$this->upload_file_num;$i++) { if(!empty($this->upload_file[$i]['name'])) { //检查文件 $this->check($i); if (0==$this->upload_file[$i]['error']) { //上传文件 if(!@move_uploaded_file($this->upload_file[$i]['tmp_name'],$this->upload_file[$i]['filename'])) { $upload_msg.='上传文件'.$this->upload_file[$i]['name'].' 出错:'.$this->error($this->upload_file[$i]['error']).'!<br>'; }else { $this->succ_upload_file[]=$this->upload_file[$i]['filename']; $upload_msg.='上传文件'.$this->upload_file[$i]['name'].' 成功了<br>'; } }else $upload_msg.='上传文件'.$this->upload_file[$i]['name'].' 出错:'.$this->error($this->upload_file[$i]['error']).'!<br>'; } } echo $upload_msg; } //错误信息 public function error($error) { switch ($error) { case 1: return '文件大小超过php.ini 中 upload_max_filesize 选项限制的值'; break; case 2: return '文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值'; break; case 3: return '文件只有部分被上传'; break; case 4: return '没有文件被上传'; break; case 5: return '这个文件不允许被上传'; break; case 6: return '文件名为空'; break; default: return '出错'; break; } } //获取成功的数据信息为数组(备用) public function get_succ_file(){ return $this->succ_upload_file; } } $upload=new File_upload('./upload/','jpg|bmp|png|gif|jpeg'); $upload->upload(); $t=$upload->get_succ_file(); print_r($t);