本文章總結了關於php文件上傳及錯誤代碼的介紹，有需要學習的朋友可參考一下本文章。
上傳操作代碼
代碼如下 復制代碼<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
<title></title>
</head>
<body>
<?php
if($_FILES['myfile']['error'] > 0) { //判斷文件是否可以成功上傳到服務器，0表示上傳成功
echo 'Error: ';
switch ( $_FILES['myfile']['error'] ) {
case UPLOAD_ERR_OK:
$response = 'There is no error, the file uploaded with success.';
break;
case UPLOAD_ERR_INI_SIZE:
$response = 'The uploaded file exceeds the upload_max_filesize directive in php.ini.';
break;
case UPLOAD_ERR_FORM_SIZE:
$response = 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.';
break;
case UPLOAD_ERR_PARTIAL:
$response = 'The uploaded file was only partially uploaded.';
break;
case UPLOAD_ERR_NO_FILE:
$response = 'No file was uploaded.';
break;
case UPLOAD_ERR_NO_TMP_DIR:
$response = 'Missing a temporary folder. Introduced in PHP 4.3.10 and PHP 5.0.3.';
break;
case UPLOAD_ERR_CANT_WRITE:
$response = 'Failed to write file to disk. Introduced in PHP 5.1.0.';
break;
case UPLOAD_ERR_EXTENSION:
$response = 'File upload stopped by extension. Introduced in PHP 5.2.0.';
break;
default:
$response = 'Unknown error';
break;
}
echo $response;
exit; //如果$_FILES['myfile']['error']大於0都是有錯誤，輸出錯誤信息並退出程序
}
//獲取上傳文件的MIME類型中的主類型和子類型
list($maintype,$subtype)=explode("/",$_FILES['myfile']['type']);
if ($maintype=="text") { //通過主類型限制不能上傳文本文件，例如.txt .html .php等文件文件
echo '問題: 不能上傳文本文件。';
exit; //如果用戶上傳文本文件則退出程序
}
$upfile = './uploads/'.time().$_FILES['myfile']['name']; //定義上傳後的位置和新文件名
if ( is_uploaded_file($_FILES['myfile']['tmp_name']) ) { //判斷是否為上傳文件
if ( !move_uploaded_file($_FILES['myfile']['tmp_name'], $upfile) ) { //從移動文件
echo '問題: 不能將文件移動到指定目錄。';
exit;
}
}else{
echo '問題: 上傳文件不是一個合法文件: ';
echo $_FILES['myfile']['name'];
exit;
}
echo '文件 : '.$upfile.' 上傳成功, 大小為 : ' .$_FILES['myfile']['size'].'！<br>'; //如果文件上傳成功則輸出
?>
</body>
</html>
html
代碼如下 復制代碼<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
<title></title>
</head>
<body>
<form action="upload.php" method="post" enctype="multipart/form-data">
<input type="hidden" name="MAX_FILE_SIZE" value="1000000">
選擇文件：<input type="file" name="myfile">
<input type="submit" value="上傳文件">
</form>
</body>
</html>
一些常見的上傳文件時錯誤代碼
0 | UPLOAD_ERR_OK | 文件成功上傳
1 | UPLOAD_ERR_INI_SIZE | Size exceeds upload_max_filesize in php.ini.
2 | UPLOAD_ERR_FORM_SIZE | Size exceeds MAX_FILE_SIZE specified in HTML form.
3 | UPLOAD_ERR_PARTIAL | 文件沒有完整上傳
4 | UPLOAD_ERR_NO_FILE | 沒有上傳文件
5 | UPLOAD_ERROR_E | As expliained by @Progman, removed in rev. 81792
6 | UPLOAD_ERR_NO_TMP_DIR | 找不到臨時文件夾
7 | UPLOAD_ERR_CANT_WRITE | 磁盤不可寫
8 | UPLOAD_ERR_EXTENSION | File upload stopped by extension.
