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upload文件上传
秋闲独醉
Original
390 people have browsed it

单文件上传

  1. <?php
  2.     if(isset($_FILES['userfile'])){
  3.         $error =  $_FILES['userfile']['error'];
  4.         // var_dump($error);
  5.         if($error){
  6.         switch($error){
  7.             case 1: echo "上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值.";
  8.             break;
  9.             case 2: echo "上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值.";
  10.             break;
  11.             case 3: echo "文件只有部分被上传。";
  12.             break;
  13.             case 4: echo "没有文件被上传。";
  14.             break;
  15.             case 6: echo "找不到临时文件夹。";
  16.             break;
  17.             case 7: echo "文件写入失败。";
  18.             default: echo "未知错误";
  19.         }
  20.     }else{
  21.         $name =pathinfo($_FILES['userfile']['name'])['filename'];
  22.         $ext =  pathinfo($_FILES['userfile']['name'])['extension'];
  23.         $newFileName = 'upload/'.md5($name).'.'.$ext;
  24.         // var_dump($newFileName,$_FILES['userfile']['tmp_name']);
  25.         if(move_uploaded_file($_FILES['userfile']['tmp_name'],"$newFileName")){
  26.             echo "上传成功";
  27.         }else{
  28.             echo '123';
  29.         }
  31.     }
  32. }
  33. ?>
  35. <!DOCTYPE html>
  36. <html lang="en">
  38. <head>
  39.     <meta charset="UTF-8">
  40.     <meta http-equiv="X-UA-Compatible" content="IE=edge">
  41.     <meta name="viewport" content="width=device-width, initial-scale=1.0">
  42.     <title>文件上传功能</title>
  43. </head>
  45. <body>
  46.     <h1>单文件上传功能</h1>
  47.     <form action="demo.php" method="POST" enctype="multipart/form-data">
  48.         <input type="hidden" name="MAX_FILE_SIZE" value="1048576">
  49.         <input type="file" name="userfile" id="">
  50.         <button>上传</button>
  51.     </form>
  52. </body>
  54. </html>

多文件上传

  1. <?php
  2. // var_dump($_FILES);
  3. $message = "";
  4. foreach($_FILES['userfile']['error'] as $key => $value){
  5.     if(!$value){
  6.         switch($value){
  7.             case 1: $message .="第{$key}个文件上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值。"."<br>";
  8.             break;
  9.             case 2: $message .="第{$key}个文件上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值。"."<br>";
  10.             break;
  11.             case 3: $message .="第{$key}个文件文件只有部分被上传。"."<br>";
  12.             break;
  13.             case 4: $message .="第{$key}个文件没有文件被上传。"."<br>";
  14.             break;
  15.             case 6: $message .="第{$key}个文件找不到临时文件夹。"."<br>";
  16.             break;
  17.             case 7: $message .="第{$key}个文件文件写入失败。"."<br>";
  18.             // default: echo "未知错误";
  19.         }
  20.     }
  21. }
  22. if($message){
  23.     echo $message;
  24.     exit;
  25. }
  26. foreach($_FILES['userfile']['error'] as $key => $value){
  27.     if(is_uploaded_file($_FILES['userfile']['tmp_name'][$key])){
  28.         $newFileName = 'upload/'.$_FILES['userfile']['name'][$key];
  29.         $oldFileName =  $_FILES['userfile']['tmp_name'][$key];
  30.         move_uploaded_file($oldFileName,$newFileName);
  31.         echo "上传成功";
  32.         }else{
  33.             echo "未知错误";
  34.         }
  35. }
  36. ?>
  38. <!DOCTYPE html>
  39. <html lang="en">
  41. <head>
  42.     <meta charset="UTF-8">
  43.     <meta http-equiv="X-UA-Compatible" content="IE=edge">
  44.     <meta name="viewport" content="width=device-width, initial-scale=1.0">
  45.     <title>文件上传功能</title>
  46. </head>
  48. <body>
  49.     <h1>多文件上传功能</h1>
  50.     <form action="demo.php" method="POST" enctype="multipart/form-data">
  51.         <!-- <input type="hidden" name="MAX_FILE_SIZE" value="1048576"> -->
  52.         <input type="file" name="userfile[]" id="" multiple>
  53.         <button>上传</button>
  54.     </form>
  55. </body>
  57. </html>
Correcting teacher：PHPzPHPz

Correction status：qualified

Teacher's comments：
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