Today's written upload class, pure practiced hand, for the new students to learn

Last Update:2015-01-12 Source: Internet

Author: User

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/*
*@ File Upload
*@ to obtain an upload instance, use Upload::getinstance (); Please refer to the class interface for the specific use method
* @auther Sauteed
* @email [email protected]
* @blogwww. 92zyw.com
* */
Class upload{

private static $instance = null;

protected $destDir;//storage Directory of uploaded files
protected $allowType;//type of upload allowed
protected $denyType;//reject the type of file to upload
protected $mutilUpload;//Whether multiple file uploads are allowed
protected $maxUpload;//maximum number of uploaded bytes

Private function __construct (array $options =null) {
$this->destdir = ' upload ';/* str_replace (' \ \ ', '/', Strstr (GETCWD (), ' test ', true)); */
$this->allowtype = array (' jpg ', ' gif ');
$this->denytype = Array (' PHP ');
$this->mutilupload=false;
$this->maxupload = ' 202800 ';
Is_dir ($this->destdir) or mkdir ($this->destdir);
if (Isset ($options)) {
foreach ($options as $k = = $v) {
$this $k = $v;
}
}
}
Single-Case mode
public static function getinstance (array $options =null) {
if (static:: $instance = = null) {
if (Isset ($options)) {
Static:: $instance = new Upload ($options);
}else{
Static:: $instance = new Upload ();
}
}
return static:: $instance;
}
/* *
* Upload a single file
* @param array
*
* */
Public function upload (array $file) {
try {
return $this->move ($file [' name '], $file [' tmp_name ']);
} catch (Uploadexception $e) {
Exceptionpage::showmsg ($e. GetMessage (), $e->geterrno);
}

}
/*
* Multiple File Upload
* @ received parameter is array format such as: Array (' name ' = = $file [' name], ' tmp_name ' = = $file [' Tmp_file '])
*
* */
Public function Mutilupload (array $files) {
if (! $this->uploadavailable ()) {
throw new Uploadexception ("Do not allow multiple file uploads");
return false;
}
foreach ($files as $file) {
if (!isset ($file) &&!is_array ($file)) {
throw new Uploadexception (' Please verify that the array parameters meet the requirements of multiple file uploads! ');
}
$this->move ($file [' name '], $file [' tmp_name ']);
}
return true;
}
/* Copy File
* @param string
* @param string
* */
protected function Move ($file, $tmp _name) {
$filename = $this->destdir. $file;
$fileTmpName = Date (' Ymdhis ', Time ()). '. '. PathInfo ($file) [' extension '];
$result = Move_uploaded_file ($tmp _name, "{$this->destdir}/{$fileTmpName}");
if (!result) {
throw new Uploadexception (' file does not exist or cannot be moved because of some unpredictable cause);
}
return $result;
}

protected function uploadavailable ($file) {
$size = FileSize ($file);
if ($size > $this->maxupload) {
return false;
}
return false;
}
}

/* Exception class */
Class expection{
protected $msg;
protected $errno;

Public Function GetMessage () {
return $this->msg;
}
Public Function Geterrno () {
return $this->errno;
}
}

/* Upload Exception class */
Class Uploadexpection extends expection{
Public function __construct ($msg, $errno =null) {
$this->msg = $msg;
if (Isset ($errno)) {
$this->errno =null;
}else{
$this->errno = $errno;
}
}
}
Class exceptionpage{
static $instance = null;
Public $html = ';
Public function __construct ($msg, $errno = ") {

$html. = ' $html. = ' $html. = ' <title> exception page </title> ';
$html. = ' $html. = ' <body> ';
$html. = "<div><p> exception: {$msg}</p>";
if (Isset ($errno)) {
$html. = ' <p> exception code: {$errno}</p> ';
}
$html. = ' </div> ';
$html. = ' </body> ';
$html. = ' Echo $html;
}
public static function ShowMsg ($msg, $errno) {
New Exception ($msg, $errno);
}
}

Today's written upload class, pure practiced hand, for the new students to learn

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

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