1、写一个异常的实现上传文件
实例
<!--upload.html-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>上传附件</title>
</head>
<body>
<form action="index.php" method="post" enctype="multipart/form-data">
<input type="file" name="my_file" value="选择文件">
<button>上传</button>
</form>
</body>
</html>
<!--//index.php-->
<?php
namespace _1012;
use Exception;
class UploadException extends Exception
{
public function __construct($message = "", $code = 0, Throwable $previous = null)
{
parent::__construct($message, $code, $previous);
}
public function errInfo(){
$result = [
'code'=>$this->getCode(),
'message'=>$this->getMessage()
];
return $result;
}
}
try{
$fileExt = ["jpg","png","jpeg"];
$file = $_FILES["my_file"];
$fileName = $file["name"];
$tmpName = $file["tmp_name"];
$newPath = __DIR__.'/img/';
$errCode = $file["error"];
if($errCode>0){
switch ($errCode){
case 1:
case 2:
throw new UploadException('上传文件多大','104');
case 3:
throw new UploadException('文件上传不完整','105');
case 4:
throw new UploadException('没有文件上传','106');
default:
throw new UploadException('未知错误','107');
}
}
$fileType = explode('/',$file["type"])[1];
$newFileName = time().'_'.mt_rand().'.'.explode('.',$fileName)[1];
if(!in_array($fileType,$fileExt)){
throw new UploadException('文件类型不符','101');
}
if(is_uploaded_file1($tmpName)){
if(move_uploaded_file($tmpName,$newPath.$newFileName)){
echo '<script>alert("上传成功")</script>';
}else{
throw new UploadException('文件无法移动到指定目录请检查权限','102');
}
}else{
throw new UploadException('非法上传','103');
}
}catch (UploadException $e){
print_r($e->errInfo());
}运行实例 »
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