PHP上传文件类代码练习

提示：扫一扫查出行
【扫一扫了解最新限行尾号】
复制提示

类文件：

<?phpclass upload{ protected $fileName;
protected $uploadPath;
protected $maxSize;
protected $extarray;
protected $checkimg;
protected $mimeType;
protected $fileInfo;
protected $error;
protected $ext; public function __construct($fileName='filename',$uploadPath='uploads',$maxSize=2097152,$checkimg=true,$extarray=['jpeg','jpg','png','gif'],$mimeType=['image/jpeg','image/png','image/gif']){
$this->fileName=$fileName;
$this->uploadPath=$uploadPath;
$this->maxSize=$maxSize;
$this->checkimg=$checkimg;
$this->extarray=$extarray;
$this->mimeType=$mimeType;
$this->fileInfo=$_FILES[$this->fileName]; } //判断错误号
protected function checkError(){
if(!is_null($this->fileInfo)){
if($this->fileInfo['error']>0){
switch ($this->fileInfo['error']) {
case 1:
$this->error='文件超过了PHP配置中文件的大小';
break; case 2:
$this->error='文件超过了表单中的限制';
break;
case 3:
$this->error='文件部分被上传';
break;
case 4:
$this->error='没有选择上传文件';
break;
case 6:
$this->error='没有找到临时目录';
break;
case 7:
$this->error='文件不可写';
break;
case 8:
$this->error='由于PHP的扩展程序中断文件上传';
break; }
return false;
}
return true;
}
$this->error='文件上传出错';
return false; } //判断文件大小
protected function checkSize(){
if($this->fileInfo['size']>$this->maxSize){
$this->error='文件过大';
return false;
}
return true; } //判断文件类型
protected function getExt(){
$this->ext=strtolower(pathinfo($this->fileInfo['name'],PATHINFO_EXTENSION));
return $this->ext;
}
protected function checkExt(){
$this->getExt();
if(!in_array($this->ext, $this->extarray)){
$this->error='文件格式不正确,允许的格式为：jpeg,jpg,png,gif';
return false; }
return true;
} //判断mime类型
protected function checkMime(){
if(!in_array($this->fileInfo['type'],$this->mimeType)){
$this->error='不允许的文件类型';
return false;
}
return true;
} //判断是否是真正的图片 protected function checkImage(){
if ($this->checkimg) {
if(@!getimagesize($this->fileInfo['tmp_name'])){
$this->error='不是真正的图片';
return false;
}
return true;
# code...
}
} //判断是否是通过HTTP post方式上传
protected function checkHttppost(){
if(!is_uploaded_file($this->fileInfo['tmp_name'])){
$this->error='不是通过HTTP post方式上传';
return false;
}
return true;
} //显示错误
protected function showError(){
exit('<span style="color:red">'.$this->error.'</span>');
} //检查上传目录并创建
protected function checkPath(){
if(!file_exists($this->uploadPath)){
mkdir($this->uploadPath,0777,true);
}
} //创建唯一的文件名
protected function getName(){
return md5(uniqid(microtime(true),true)).'.'.$this->ext; } //上传文件
public function uploadFile(){
if ($this->checkError()&&$this->checkSize()&&$this->checkExt()&&$this->checkMime()/*&&$this->checkImage()*/&&$this->checkHttppost()) { $this->checkPath();
$this->uniName=$this->getName();
$this->destination=$this->uploadPath.'/'.$this->uniName; if(@move_uploaded_file($this->fileInfo['tmp_name'], $this->destination)){ return $this->destination;
}else{
$this->error='文件移动失败';
$this->showError();
}
# code...
}else{
$this->showError();
}
}
}