PHP多檔案一件上傳類–upload.class.php
最近在學習PHP，寫了一個多檔案上傳類練練手，與單檔案相比，主要注意以下幾點：
- 在表單中，的multiple屬性要用到，這樣可以選擇多個檔案
- 擷取檔案名稱時，要用$_FILES[]循環讀取上傳，具體實作方式見代碼
- *貌似可以通過js的var files = doucument.getElementById(‘files’).files，然後通過循環得到上傳各檔案的名稱，傳遞給PHP背景進行操作，但具體實作方式我還不懂。。希望各路大神嘗試一下，給予解答！
- 檔案類型我預設選的是圖檔，大小預設是3m，大家可以自己根據需求改一改，或者再寫一個set()方法，直接進行設定。
-
注釋不少，應該很容易看明白
代碼塊
網頁html代碼：
<html>
<head>
<title>檔案上傳測試</title>
<script type="text/javascript" src="uploadFile.js"></script>
</head>
<body>
<!-- <form action="upload.php" method="post" enctype="multipart/form-data"> -->
<form action="upload.class.php" method="post" enctype="multipart/form-data">
<label for="file">Filename:</label>
<input type="file" name="fileNames[]" id="files" multiple="multiple" />
<br />
<input type="submit" name="" value="Submit" />
</form>
</body>
</html>
背景的PHP代碼：
<?php
/**
* 支援多檔案上傳
* 面向對象
* jaywong20170910
*/
date_default_timezone_set('Asia/Shanghai');
class uploadFile{
//成員屬性
protected $fileNames;
protected $supportType;
protected $maxSize;
protected $filepath;
protected $fileInfo;
protected $error = null;
protected $upFileName;
//成員屬性初始化
public function __construct($fileNames='fileNames',
$supportType = ['image/jpg','image/png','image/gif','image/jpeg','image/tiff'],
$maxSize = ,$filepath = '/users/jaywong/sites/uploadTest'){
$this->fileNames = $fileNames;
$this->supportType = $supportType;
$this->maxSize = $maxSize;
$this->filepath = $filepath;
$this->fileInfo = $_FILES[$this->fileNames];
}
//判斷錯誤
protected function judgeError($i){
if($this->fileInfo['error'][$i]){
switch ($fileInfo['error'][$i]){
case :
$this->error = 'UPLOAD_ERR_INI_SIZE:上傳的檔案超過了 php.ini 中 upload_max_filesize 選項限制的值';
return false;
case :
$this->error = 'UPLOAD_ERR_FORM_SIZE:上傳檔案的大小超過了 HTML 表單中 MAX_FILE_SIZE 選項指定的值。';
return false;
case :
$this->error = 'UPLOAD_ERR_PARTIAL';
return false;
case :
$this->error = 'UPLOAD_ERR_NO_FILE';
return false;
case :
$this->error = 'UPLOAD_ERR_NO_TMP_DIR';
return false;
case :
$this->error = 'UPLOAD_ERR_CANT_WRITE';
return false;
}
}
}
//判斷檔案mime類型
protected function judgeMime($i){
if(!in_array($this->fileInfo['type'][$i],$this->supportType)){
$this->error = $this->fileInfo['name'][$i].'不支援檔案類型.<br>';
return false;
}
}
//判斷檔案是否超過允許最大值
protected function judgeSize($i){
if($this->fileInfo['size'][$i]>$this->maxSize){
$this->error = $fileName.'檔案太大了，超過了3m.<br>';
return false;
}
}
//建立目錄
protected function createDir(){
if(!file_exists($this->filepath)){
mkdir($this->filepath);
}
}
//給上傳檔案命名
protected function newName($i){
$basename = $this->fileInfo['name'][$i];
$filename = pathinfo($basename,PATHINFO_FILENAME);
$extention = pathinfo($basename,PATHINFO_EXTENSION);
$this->upFileName = $filename.date("Y-m-d H:i:s").'.'.$extention;
}
//上傳檔案
protected function upFile($i){
$this->newName($i);
if(is_uploaded_file($this->fileInfo['tmp_name'][$i])){
move_uploaded_file($this->fileInfo['tmp_name'][$i],$this->filepath.'/'.$this->upFileName);
echo $this->upFileName."上傳成功.<br>";
return array('name'=>$this->fileInfo['name'][$i],
'type'=>$this->fileInfo['type'][$i],'size'=>$this->fileInfo['size'][$i],
'newname'=>$this->newName($i));
}
}
//循環上傳檔案
public function loopUpFiles(){
// $fileInfo = $_FILES[$fileNames];
$n = count($this->fileInfo['name']);//$_FILES must be usedfor reading files information.
for($i = ; $i < $n; $i++){
//判斷是否有錯誤
$this->judgeError($i);
//判斷檔案mime類型
$this->judgeMime($i);
//判斷檔案大小
$this->judgeSize($i);
//建立目錄
$this->createDir();
//上傳檔案
if(is_null($this->error)){
$this->upFile($i);
}
}
}
//檢視錯誤接口
public function getError(){
return $this->error;
}
//清空對象
function __destruct(){
}
}
$upFiles = new uploadFile();
$upFiles->loopUpFiles();
?>
![php寫一個簡潔的登入頁面[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)