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单文件上传和多文件上传和批量上传

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2020年05月13日 16:31:531251浏览

单文件上传

  1. <?php
  3. printf('<pre>%s</pre>',print_r($_FILES,true));
  5. //自定义上传类
  6. class UploadException extends Exception{
  7. //    在异常类中可以访问并且中写 Exception 中的四个属性，通过 __toString()格式化异常输出信息
  9.     public function __toString()
  10.     {
  11.         return <<< UPLOAD
  12.     <style>
  13.         table {border-collapse: collapse;border:1px solid black;text-align: center;}
  14.         td {border:1px solid black;padding: 5px;}
  15.         tr:first-of-type {background-color:#eee;}
  16.         tr:last-of-type td {color: coral;}
  17.     </style>
  18.     <table>
  19.         <tr>
  20.             <td>代码</td><td>信息</td><td>文件</td><td>行号</td>
  21.         </tr>
  22.         <tr>
  23.             <td>$this->code</td><td>$this->message</td><td>$this->file</td><td>$this->line</td>
  24.         </tr>
  25.     </table>
  26. UPLOAD;
  27.     }
  28. }
  29. ///////////////////////////////////////////////////////
  31. try{
  32.     // 上传出错的代码
  33.     $errorCode = $_FILES['my_pic']['error'];
  34.     if ($errorCode > UPLOAD_ERR_OK) {
  35.         switch ($errorCode) {
  36.             case UPLOAD_ERR_INI_SIZE:
  37.                 throw new UploadException('上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值', 1);
  38.                 break;
  39.             case UPLOAD_ERR_FORM_SIZE:
  40.                 throw new UploadException('上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值', 2);
  41.                 break;
  42.             case UPLOAD_ERR_PARTIAL:
  43.                 throw new UploadException('文件只有部分被上传', 3);
  44.                 break;
  45.             case UPLOAD_ERR_NO_FILE:
  46.                 throw new UploadException('没有文件被上传', 4);
  47.                 break;
  48.             case UPLOAD_ERR_NO_TMP_DIR:
  49.                 throw new UploadException('找不到临时文件夹', 6);
  50.                 break;
  51.             case UPLOAD_ERR_CANT_WRITE:
  52.                 throw new UploadException('文件写入失败', 7);
  53.                 break;
  54.             default:
  55.                 // 测试时建议关掉default: 避免误报影响
  56.                 throw new UploadException('未知类型错误', 8);
  57.         }
  58.     }
  60.     // 判断文件类型
  61.     $fileType = $_FILES['pic']['type'];
  62.     if (strstr($fileType, '/', true) !== 'image') throw new UploadException('文件类型错误',9);
  64.     $tempName =$_FILES['pic']['tmp_name'];
  65.     if (is_uploaded_file($tempName)){
  66.         // 将文件从临时目录 移动到用户自定义的目标目录中
  67.         // 临时文件名
  68.        echo  $originalFileName=$_FILES['pic']['name'];
  69.        echo '<br>';
  70.         // 目录文件名
  71.        echo  $destFileName =  'uploads/'.md5(time().mt_rand(1,1000)).strstr($originalFileName, '.');
  72.         if (move_uploaded_file($tempName,$destFileName)){
  73.             echo "<p>$originalFileName: 上传成功~~</p>";
  74.             // 预览
  75.             echo "<img src='{$destFileName}' width='200'>";
  76.         }else{
  77.             echo "<p>$originalFileName: 没有成功~~</p>";
  78.         }
  79.     }
  84. }catch (UploadException $e){
  85.     echo $e;
  86. }
  87. ?>
  89. <!doctype html>
  90. <html lang="en">
  91. <head>
  92.     <meta charset="UTF-8">
  93.     <meta name="viewport"
  94.           content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
  95.     <meta http-equiv="X-UA-Compatible" content="ie=edge">
  96.     <title>Document</title>
  97. </head>
  98. <body>
  99. <form action="" method="post" enctype="multipart/form-data">
  100.     <fieldset>
  101.         <legend>单文件上传 </legend>
  102.         <input type="hidden" name="MAX_FILE_SIZE" VALUE="50000">
  103.         <input type="file" name="pic">
  104.         <button>上传</button>
  105.     </fieldset>
  106. </form>
  108. </body>
  109. </html>

多文件上传

  1. <?php
  3. printf('<pre>%s</pre>',print_r($_FILES,true));
  5. //自定义上传类
  6. class UploadException extends Exception{
  7. //    在异常类中可以访问并且中写 Exception 中的四个属性，通过 __toString()格式化异常输出信息
  9.     public function __toString()
  10.     {
  11.         return <<< UPLOAD
  12.     <style>
  13.         table {border-collapse: collapse;border:1px solid black;text-align: center;}
  14.         td {border:1px solid black;padding: 5px;}
  15.         tr:first-of-type {background-color:#eee;}
  16.         tr:last-of-type td {color: coral;}
  17.     </style>
  18.     <table>
  19.         <tr>
  20.             <td>代码</td><td>信息</td><td>文件</td><td>行号</td>
  21.         </tr>
  22.         <tr>
  23.             <td>$this->code</td><td>$this->message</td><td>$this->file</td><td>$this->line</td>
  24.         </tr>
  25.     </table>
  26. UPLOAD;
  27.     }
  28. }
  29. ///////////////////////////////////////////////////////
  31. try{
  32. //     上传出错的代码
  33.     $errorCode = $_FILES['my_pic']['error'];
  34.     if ($errorCode > UPLOAD_ERR_OK) {
  35.         switch ($errorCode) {
  36.             case UPLOAD_ERR_INI_SIZE:
  37.                 throw new UploadException('上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值', 1);
  38.                 break;
  39.             case UPLOAD_ERR_FORM_SIZE:
  40.                 throw new UploadException('上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值', 2);
  41.                 break;
  42.             case UPLOAD_ERR_PARTIAL:
  43.                 throw new UploadException('文件只有部分被上传', 3);
  44.                 break;
  45.             case UPLOAD_ERR_NO_FILE:
  46.                 throw new UploadException('没有文件被上传', 4);
  47.                 break;
  48.             case UPLOAD_ERR_NO_TMP_DIR:
  49.                 throw new UploadException('找不到临时文件夹', 6);
  50.                 break;
  51.             case UPLOAD_ERR_CANT_WRITE:
  52.                 throw new UploadException('文件写入失败', 7);
  53.                 break;
  54.             default:
  55.                 // 测试时建议关掉default: 避免误报影响
  56.                 throw new UploadException('未知类型错误', 8);
  57.         }
  58.     }
  60.     foreach ($_FILES as $file){
  61. //        print_r($file);
  62.         if ($file['error'] ===0){
  63.          $destFile='uploads/'.md5(time().mt_rand(1,1000)).strstr($file['name'], '.');;
  64.             if (move_uploaded_file($file['tmp_name'],$destFile)){
  65.                 echo "<p>$destFile: 上传成功~~</p>";
  66.                 // 预览
  67.                 echo "<img src='{$destFile}' width='200'>";
  68.             }else{
  69.                 echo "<p>$destFile: 没有成功~~</p>";
  70.             }
  71.         }
  72.     }
  76. }catch (UploadException $e){
  77.     echo $e;
  78. }
  79. ?>
  81. <!doctype html>
  82. <html lang="en">
  83. <head>
  84.     <meta charset="UTF-8">
  85.     <meta name="viewport"
  86.           content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
  87.     <meta http-equiv="X-UA-Compatible" content="ie=edge">
  88.     <title>Document</title>
  90. </head>
  91. <body>
  92. <form action="" method="post" enctype="multipart/form-data">
  93.     <fieldset>
  94.         <legend>单文件上传 :异常处理</legend>
  95.         <input type="hidden" name="MAX_FILE_SIZE" VALUE="50000">
  96.         <input type="file" name="pic1">
  97.         <input type="file" name="pic2">
  98.         <input type="file" name="pic3">
  100.         <button>上传</button>
  101. <!--        <input type="button" value="上传">-->
  102.     </fieldset>
  103. </form>
  105. </body>
  106. </html>

批量上传

  • <input type="file" name="pic[]" multiple> 多选并上传文件时候 天添加multiple 这样可以选多个文件并且上传
    ```
    <?php

printf(‘<pre>%s</pre>‘,print_r($_FILES,true));

//自定义上传类
class UploadException extends Exception{
// 在异常类中可以访问并且中写 Exception 中的四个属性，通过 __toString()格式化异常输出信息

  1. public function __toString()
  2. {
  3.     return <<< UPLOAD
  4. <style>
  5.     table {border-collapse: collapse;border:1px solid black;text-align: center;}
  6.     td {border:1px solid black;padding: 5px;}
  7.     tr:first-of-type {background-color:#eee;}
  8.     tr:last-of-type td {color: coral;}
  9. </style>
  10. <table>
  11.     <tr>
  12.         <td>代码</td><td>信息</td><td>文件</td><td>行号</td>
  13.     </tr>
  14.     <tr>
  15.         <td>$this->code</td><td>$this->message</td><td>$this->file</td><td>$this->line</td>
  16.     </tr>
  17. </table>

UPLOAD;
}
}
///////////////////////////////////////////////////////

try{
// 上传出错的代码
$errorCode = $_FILES[‘my_pic’][‘error’];
if ($errorCode > UPLOAD_ERR_OK) {
switch ($errorCode) {
case UPLOAD_ERR_INI_SIZE:
throw new UploadException(‘上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值’, 1);
break;
case UPLOAD_ERR_FORM_SIZE:
throw new UploadException(‘上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值’, 2);
break;
case UPLOAD_ERR_PARTIAL:
throw new UploadException(‘文件只有部分被上传’, 3);
break;
case UPLOAD_ERR_NO_FILE:
throw new UploadException(‘没有文件被上传’, 4);
break;
case UPLOAD_ERR_NO_TMP_DIR:
throw new UploadException(‘找不到临时文件夹’, 6);
break;
case UPLOAD_ERR_CANT_WRITE:
throw new UploadException(‘文件写入失败’, 7);
break;
default:
// 测试时建议关掉default: 避免误报影响
throw new UploadException(‘未知类型错误’, 8);
}
}

  1. // 判断文件类型

// $fileType = $_FILES[‘pic’][‘type’];
// if (strstr($fileType, ‘/‘, true) !== ‘image’) throw new UploadException(‘文件类型错误’,9);

if ($_FILES[‘pic’]){
foreach ($_FILES[‘pic’][‘error’] as $key=>$error) {
print_r($error);
// 只要判断 error===0
if ($error === 0){
//临时文件的名字
$tmpFileName=$_FILES[‘pic’][‘tmp_name’][$key];
//原始文件名
$originalFileName = $_FILES[‘pic’][‘name’][$key];

  1.         //目标文件名
  2.       $destFileName = 'uploads/'.md5(time().mt_rand(0,10000)).strstr($originalFileName,',');
  4.       // 移动文件
  5.       move_uploaded_file($tmpFileName,$destFileName);
  6.       // 预览
  7.       echo "<img src='{$destFileName}' width='200'>";
  8.   }

}
};

}catch (UploadException $e){
echo $e;
}
?>

<!doctype html>

<html lang="en">

<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>

</head>

<body>

<form action="" method="post" enctype="multipart/form-data">
<fieldset>
<legend>单文件上传 :异常处理</legend>
<input type="hidden" name="MAX_FILE_SIZE" VALUE="50000">
<input type="file" name="pic[]">
<input type="file" name="pic[]">
<input type="file" name="pic[]">


<button>上传</button>
</fieldset>
</form>

</body>
</html>
```

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