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批改狀態(tài)：合格
老師批語：你的命名很規(guī)范, 語義化很好
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>上傳文件</title> </head> <body> <form action="demo1.php" method="post" enctype="multipart/form-data"> <!--設(shè)置上傳文件大小最大為3M 這段代碼一定要放到文件提交框之前--> <!-- 1M = 1024K = 1024*1024Byte=1048576Byte--> <input type="hidden" name="MAX_FILE_SIZE" value="3145728"> <input type="file" name="my_file" id=""> <!--button默認(rèn)為提交按鈕--> <button>上傳</button> </form> </body> </html>
點(diǎn)擊 "運(yùn)行實(shí)例" 按鈕查看在線實(shí)例
<?php
// 自定義異常類
class CustomException extends Exception
{
public function errorInfo()
{
$str="<h3>
<strong>錯(cuò)誤代碼：{$this->getCode()} --- </strong>
<span style='color: red'>{$this->getMessage()}</span>
</h3>";
return $str;
}
}點(diǎn)擊 "運(yùn)行實(shí)例" 按鈕查看在線實(shí)例
<?php
require 'CustomException.php'; //引入CustomException.php
class FUpload
{
public $flie;
// 原始文件名稱
protected $fileName;
// 臨時(shí)文件名
protected $fileTmpName;
//文件類型
protected $fileType;
//文件錯(cuò)誤代碼
protected $fileError;
//文件大小
protected $fileSize;
//文件保存路徑
protected $savePath;
//保存的文件名
protected $saveFileName;
// 允許上傳的文件后綴
protected $allowExts=['jpg','jpeg','png','gif'];
public function __construct($file,$savePath='')
{
$this->file=$file;
$this->fileName=$file['name'];
$this->fileTmpName=$file['tmp_name'];
$this->fileType=$file['type'];
$this->fileError=$file['error'];
$this->fileSize=$file['size'];
$this->savePath=$savePath;
if (!file_exists($savePath)){
mkdir($savePath,2019,true);//創(chuàng)建多級目錄
}
}
public function __get($name)
{
return $this->$name;
}
public function __set($name, $value)
{
$this->$name=$value;
}
//文件上傳
public function upload()
{
// 判斷是否上傳成功
$this->getFileError();
//判斷文件后綴名是否符合要求
$extension=$this->getExtension();
$this->saveFileName=date('YmdHis',time()).mt_rand(1,99).'.'.$extension;
if(is_uploaded_file($this->fileTmpName)){
if (move_uploaded_file($this->fileTmpName,$this->savePath.$this->saveFileName)){
echo '<script>alert("上傳成功");history.back();</script>';
}else{
throw new CustomException('文件無法移動(dòng)到指定目錄, 請檢查目錄的寫權(quán)限',103);
}
}else{
throw new CustomException('非法操作',102);
}
}
//判斷是否上傳成功
protected function getFileError()
{
if($this->fileError>0){
switch ($this->fileError){
case 1:
throw new CustomException('上傳的文件超過了 php.ini 中 upload_max_filesize選項(xiàng)限制的值。',1);
case 2:
throw new CustomException('上傳文件的大小超過了 HTML 表單中 MAX_FILE_SIZE 選項(xiàng)指定的值。上傳文件不允許超過3M',2);
case 3:
throw new CustomException('文件只有部分被上傳。上傳文件不完整',3);
case 4:
throw new CustomException('沒有文件被上傳',4);
case 6:
throw new CustomException('找不到臨時(shí)文件夾',6);
case 7:
throw new CustomException('文件寫入失敗',7);
default:
throw new CustomException('未知錯(cuò)誤',8);
}
}
}
//判斷文件后綴名是否符合要求
protected function getExtension()
{
$myfile=explode('.',$this->fileName);
$extension=array_pop($myfile);
if(!in_array($extension,$this->allowExts)){
throw new CustomException('不允許上傳'.$extension.'文件類型',101);
}
return $extension;
}
}點(diǎn)擊 "運(yùn)行實(shí)例" 按鈕查看在線實(shí)例
<?php
require 'FUpload.php';
try{
$obj=new FUpload($_FILES['my_file'],'uploads/img/');
$obj->upload();
}catch (CustomException $e){
echo $e->errorInfo();
}點(diǎn)擊 "運(yùn)行實(shí)例" 按鈕查看在線實(shí)例
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