php文件上传类的分享
本文实例为大家分享了php文件上传类的具体代码,供大家参考,具体内容如下
<?php $upload = new UpLoad(); $upload->uploadFile('fm'); /*打印错误信息*/ // var_dump($upload->errorNumber); // var_dump($upload->errorInfo); class UpLoad{ //文件上传路径 protected $path = 'upload/'; //允许文件上传的后缀 protected $allowSuffix = ['jpg','jpeg', 'gif','wbmp','png']; //mime类型 protected $allowMime =['image/jpg','image/jpeg', 'image/gif','image/wbmp','image/png']; //允许上传的大小 protected $maxSize = 2000000; //是否启用默认的前缀 protected $isRandName =true ; //文件的前缀 protected $prefix = 'up_'; //错误号和错误信息 protected $errorNumber; protected $errorInfo; //文件的信息 //文件名 protected $oldName; //文件的后缀 protected $suffix; //文件的大小 protected $size; //文件的mime protected $mime; //文件的临时文件的路径 protected $tmpName; //文件新名字 protected $newName; //构造方法 //因为成员属性比较多就用数组来显示 public function __construct($arr =[]){ foreach ($arr as $key=>$value){ $this->setOption($key,$value); } } //判断$key是不是我的成员属性,如果是就设置 protected function setOption($key,$value){ //得到所有的成员属性 $keys = array_keys(get_class_vars(__CLASS__)); if(in_array($key, $keys)){ $this->$key = $value; } } //文件上传函数 //key 就是input框中的name属性值 public function uploadFile($key){ //判断有没有设置路径 path if(empty($this->path)){ $this->setOption('errorNumber',-1 ); return false; } //判断该路径是否存在是否可写 if (!$this->check()){ $this->setOption('errorNumber', -2); return false; } //判断$_FILES里面的error信息是否为0,如果为0则说明文件信息在服务器端可以直接获取,提取信息保存到成员属性中 $error = $_FILES[$key]['error']; if($error){ $this->setOption('errorNumber', -3); return false; }else { //提取文件相关信息并且保存到成员属性中 $this->getFileInfo($key); } //判断文件的大小、mime、后缀是否符合 if(!$this->checkSize() || !$this->checkMime()|| !$this->checkSuffix()){ return false; } //得到新的文件名字 $this->newName = $this->createNewName(); //判断是否是上传文件,并且是移动上传文件 if(is_uploaded_file($this->tmpName)){ if(move_uploaded_file($this->tmpName, $this->path.$this->newName)){ return $this->path.$this->newName; }else { $this->setOption('errorNumber', -7); return false; } }else{ $this->setOption('errorNumber', -6); return false; } } //检测文件夹是否存在,是否可写 protected function check(){ //文件夹不存在或者不是目录。创建文件夹 if(!file_exists($this->path) ||!is_dir($this->path)){ return mkdir($this->path,0777,true); } //判断文件是否可写 if(!is_writeable($this->path)){ return chmod($this->path, 0777); } return true; } //根据key得到文件信息 protected function getFileInfo($key){ //得到文件的名字 $this->oldName = $_FILES[$key]['name']; //得到文件的mime类型 $this->mime = $_FILES[$key]['type']; //得到文件的临时文件 $this->tmpName = $_FILES[$key]['tmp_name']; //得到文件大小 $this->size = $_FILES[$key]['size']; //得到文件后缀 $this->suffix = pathinfo($this->oldName)['extension']; } //判断文件大小 protected function checkSize(){ if($this->size > $this->maxSize){ $this->setOption('errorNumber', -3); return false; } return true; } //判断mime类型 protected function checkMime(){ if(!in_array($this->mime, $this->allowMime)){ $this->setOption('errorNumber', -4); return false; } return true; } //判断后缀 protected function checkSuffix(){ if(!in_array($this->suffix, $this->allowSuffix)){ $this->setOption('errorNumber', -5); return false; } return true; } //创建新名字 protected function createNewName(){ if($this->isRandName){ $name = $this->prefix.uniqid().'.'.$this->suffix; }else { $name = $this->prefix.$this->oldName; } return $name; } public function __get($name){ if($name == 'errorNumber'){ return $this->errorNumber; }elseif ($name == 'errorInfo'){ return $this->getErrorInfo(); } } protected function getErrorInfo(){ switch ($this->errorNumber){ case -1: $str = '文件路径没有设置'; break; case -2: $str = '文件不是目录或者不可写'; break; case -3: $str = '文件超过指定大小'; break; case -4: $str = 'mime类型不符合'; break; case -5: $str = '文件后缀不符合'; break; case -6: $str = '不是上传文件'; break; case -7: $str = '移动失败'; break; case 1: $str = '超出ini设置大小'; break; case 2: $str = '超出html表单大小'; break; case 3: $str = '文章只有部分上传'; break; case 4: $str = '没有文件上传'; break; case 6: $str = '找不到临时文件'; break; case 7: $str = '文件写入失败'; break; } return $str; } }
<!doctype html> <html lang="en"> <head> <meta charset="UTF-8" /> <title>文件上传</title> </head> <body> <form action="UpLoad.php" method="post" enctype="multipart/form-data" > <input type="file" name="fm" value=""><br> <input type="submit" value="上传文件" /><br> </form> </body> </html>
注意:input中的name必须和上传类中的uploadFile中是传值一致!
更多精彩内容请参考php文件上传操作汇总进行学习。
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