PHP实现的多文件上传类及用法示例

本文实例讲述了PHP实现的多文件上传类及用法。分享给大家供大家参考，具体如下：

1、upFiles.css.php 文件

<?phpclass UploadFiles{ private $maxsize = '1000000'; //允许上传文件最大长度 private $allowtype = array('jpg','png','gif','jpeg');//允许上传文件类型 private $israndfile = true;//是否随机文件名 private $filepath;//上传路径 private $originName;//上传的源文件 private $tmpfileName;//临时文件名 private $newfileName;//新文件名 private $fileSize;//文件大小 private $fileType;//文件类型 private $errorNum = 0;//错误号 private $errorMessg = array();//错误消息 //对成员初始化 function __construct($options = array()){ foreach($options as $key=>$val){  $key = strtolower($key);  //查看传进来的数组里下标是否与成员属性相同  //print_r(array_keys(get_class_vars(get_class($this))));  if(!in_array($key,array_keys(get_class_vars(get_class($this))))){  continue;  }else{  $this->setOption($key,$val);  } } } private function setOption($key,$val){   $this->$key = $val; //echo $this->errorNum."<br>"; } //检查文件上传路径 private function checkfilePath(){ //echo $this->filepath; if(empty($this->filepath)){  $this->setOption('errorNum',"-5");  return false; } if(!file_exists($this->filepath) || !is_writable($this->filepath)){  if(!@mkdir($this->filepath,0755)){  $this->setOption('errorNum','-4');  return false;  } } return true; } //获取错误信息 private function getError(){ $str = "上传文件{$this->originName}出错---"; switch($this->errorNum){  case 4; $str .= "没有文件被上传";break;  case 3; $str .= "文件只被部分上传";break;  case 2; $str .= "超过文件表单允许大小";break;  case 1; $str .= "超过php.ini中允许大小";break;  case -1; $str .= "未允许的类型";break;  case -2; $str .= "文件过大，不能超过".$this->maxsize."个字节";break;  case -3; $str .= "上传失败";break;  case -4; $str .= "建立文件上传目录失败";break;  case -5; $str .= "必须指定上传路径";break;  default; $str .= "未知错误"; } return $str."<br>"; } //检查文件类型 private function checkfileType(){ //echo $this->fileType; if(!in_array(strtolower($this->fileType),$this->allowtype)){ $this->setOption('errorNum','-1');  return false; }else{  return true; } } //检查文件大小 private function checkfileSize(){ if($this->fileSize > $this->maxsize){  $this->setOption('errorNum','-2');  return false; }else{  return true; } } //处理随机文件名称 private function prorandFile(){ $ch = $this->israndfile; if($ch == 'true'){  return true; }else{  return false; } } // private function setFiles($name="",$tmp_name="",$size="",$error=""){ //检查上传路径 if(!$this->checkfilePath()){  //$this->errorMessg = $this->getError();  return false; } //echo $error."<br>"; if($error){ $this->setOption('errorNum',$error);  return false; } $arrstr  = explode('.',$name); $type   = end($arrstr); $this->setOption('originName',$name); $this->setOption('fileSize',$size); $this->setOption('fileType',$type); $this->setOption('tmpfileName',$tmp_name); return true; } //检查是否有文件上传 function checkFile($formname){ if(!@$_FILES[$formname]){  $this->setOption('errorNum',4);  return false; }else{  return true; } } //上传文件 function uploadeFile($formname){ if(!$this->checkFile($formname)){  $this->errorMessg = $this->getError();  return false; } $return  = true; $name   = @$_FILES[$formname]['name']; $tmp_name = @$_FILES[$formname]['tmp_name']; $size   = @$_FILES[$formname]['size']; $error  = @$_FILES[$formname]['error']; //$type   = $_FILES[$formname]['type']; if(is_array($name)){  $errors = array();  for($i=0; $i<count($name); $i++){  if($this->setFiles($name[$i],$tmp_name[$i],$size[$i],$error[$i])){   if(!$this->checkfileSize() || !$this->checkfileType()){   $errors[] = $this->getError();   $return = false;   }  }else{   $errors[] = $this->getError();   $return = false;  }  if(!$return) $this->setFiles();  }  if($return){  $newfileN = array();  for($i=0; $i<count($name); $i++){   if($this->setFiles($name[$i],$tmp_name[$i],$size[$i],$error[$i])){   if(!$this->copyFile()){    $errors[] = $this->getError();    $return = false;   }else{    $newfileN[] = $this->newfileName;   }   }   $this->newfileName = $newfileN;  }  }  //print_r($errors);  $this->errorMessg = $errors;  //echo $errors;  return $return; }else{  if($this->setFiles($name,$tmp_name,$size,$error)){  $return = true;  if($error) var_dump($error);  if($this->checkfileSize() && $this->checkfileType()){  }else{   $return = false;  }  }else{  $return = false;  }  if(!$return){  $this->errorMessg = $this->getError();  }  return $return; } } //获取上传后的文件名 function getnewFile(){  return $this->newfileName; } //把文件拷贝到指定的路径 function copyFile(){ $filepath = rtrim($this->filepath,'/')."/"; if(!$this->errorNum){  if($this->prorandFile()){   $this->newfileName = date('Ymdhis').rand(1000,9999).".".$this->fileType;  }else{   $this->newfileName = $this->originName;  }  if(!move_uploaded_file($this->tmpfileName,$filepath.$this->newfileName)){  $this->setOption('errorNum',-3);  return false;  }else{  return true;  } }else{  return false; } } //上传错误后返回的消息 function gteerror(){  $err = $this->errorMessg; return $err; } }?>