php高级完美多文件上传类程序-PHP源码

$action = $_GET['action'];
require_once('auc.main.class.inc.php');

$auc = new auc();

if ($action == 'uploadfile') {
$auc = new auc();

$result = $auc->upload("file");
if (is_array($result)) {
echo 'Something Went Wrong';
echo '

';

  var_dump($result);

  echo '

';
} else {
echo 'All OK';
}
} else {
?>

类文件

class auc {
public $errors = array(); //array used to store any errors that occur.
public $upload_dir = ''; //the upload_dir being used by the script
public $make_safe = false; //default don't modify the file name to safe version
public $max_file_size = 1048576; //Max File Size in Bytes, 1MB
public $overwrite = false; //default don't overwrite files that already exsist
public $check_file_type = false; //don't check for file type by default but can check for allowed and denied files.
public $allowed_mime_types = array('image/jpeg', 'image/png', 'image/gif', 'image/tiff'); //array of allowed mime types used when check_file_type is set to allowed
public $denied_mime_types = array('application/x-php', 'text/html'); //array of denied mime types used when check_file_type is set to denied

/**
* Check if the upload dir is valid, if it is not valid attempt to make the dir, if dir is succesfully created chmod it to 0777.
* If any elments fail return false else set upload_dir and return true.
* @param string $dir
* @param boolean $mkdir
* @return true or false
*/
public function upload_dir($dir, $mkdir = false) {
$errors =& $this->errors;
$status = true;

if (!is_dir($dir)) {
if ($mkdir) {
if (!mkdir($dir)) {
$status = false;
} else {
if (!chmod($dir, 0777)) $status = false;
}
} else {
$status = false;
}
}

if ($status) {
$this->upload_dir = $dir;
return true;
} else {
$errors['general'][] = 'Upload Dir is Not Valid and/or a dir could not be created/chmod.';
return false;
}
}

/**
* check that the upload dir is valid and that it is writeable
*
* @param string $dir
* @return true or false
*/
public function check_dir($dir) {
if (!is_dir($dir) || !is_writable($dir)) return false;

return true;
}

/**
* make the uploaded file name safe
*
* @param string $file_name
* @return safe file name
*/
public function make_safe($file_name) {
return str_replace(' ', '_', $file_name);
}

/**
* Check the Attemted Uploads for errors etc if everything goes good move the file, to the upload_dir.
*
* @param array $object
* @return unknown
*/
public function upload($object) {
$errors =& $this->errors;

if (empty($errors['general'])) {
if (empty($this->upload_dir)) $this->upload_dir = dirname(__FILE__).'/'; //if no default upload_dir has been specified used the current dir.

if ($this->check_dir($this->upload_dir)) {
$files = $_FILES[$object];
$count = count($files['name']) - 1;

echo '

';

    var_dump($files);

    echo '

';

for ($current = 0; $current <= $count; $current++) {
$error = '';
try {
//check for $_FILES Errors
switch ($files['error'][$current]) {
case 0 : break;
case 1 : $error = $files['name'][$current].' exceeds the upload_max_filesize directive in php.ini'; break;
case 2 : $error = $files['name'][$current].' exceeds the MAX_FILE_SIZE directive that was specified in the HTML form'; break;
case 3 : $error = $files['name'][$current].' was only partially uploaded'; break;
case 4 : $error = 'No file was uploaded'; break;
case 6 : $error = 'Missing a temporary folder'; break;
case 7 : $error = 'Failed to write '.$files['name'][$current].' to disk'; break;
case 8 : $error = $files['name'][$current].' stopped by extension'; break;
default : $error = 'Unidentified Error, caused by '.$files['name'][$current]; break;
}
if ($error)
throw new TrigerErrorException($error, $files['name'][$current]);

//check that the file is not empty
if ($files['size'][$current] <= 0)
throw new TrigerErrorException($files['name'][$current].' is empty', $files['name'][$current]);

//check that the file does not exceed the defined max_file_size
if ($this->max_file_size) {
if ($files['size'][$current] >= $this->max_file_size)
throw new TrigerErrorException($files['name'][$current].' exceeds defined max_file_size', $files['name'][$current]);
}

if ($this->check_file_type == 'allowed' && !in_array($files['type'][$current], $this->allowed_mime_types)) {
throw new TrigerErrorException($files['name'][$current].' is not an allowed type', $files['name'][$current]);
} elseif ($this->check_file_type == 'denied' && in_array($files['type'][$current], $this->denied_mime_types)) {
throw new TrigerErrorException($files['name'][$current].' is a denied type', $files['name'][$current]);
}

//if make_safe is true call make safe function
if ($this->make_safe)
$files['name'][$current] = $this->make_safe($files['name'][$current]);

//if overwrite is false and the file exists error
if (!$this->overwrite && file_exists($this->upload_dir.$files['name'][$current]))
throw new TrigerErrorException($files['name'][$current].' already exsists', $files['name'][$current]);

//move the uploaded file, error if anything goes wrong.
if (!move_uploaded_file($files['tmp_name'][$current], $this->upload_dir.$files['name'][$current]))
throw new TrigerErrorException($files['name'][$current].' could not be moved', $files['name'][$current]);
} catch (TrigerErrorException $e) {
$errors[$files['name'][$current]][] = $e->Message();
}
}

if (empty($errors)) {
//return true if there where no errors
return true;
} else {
//return the errors array if there where any errros
return $errors;
}
} else {
//return false as dir is not valid
$errors['general'][] = "The Specified Dir is Not Valid or is Not Writeable";
return false;
}
}
}
}

/**
* Handle the Exceptions trigered by errors within upload code.
*
*/
class TrigerErrorException extends Exception {
protected $file = "";
public function __construct($message, $file = "", $code = 0) {
$this->file = $file;
parent::__construct($message, $code);
}

public function Message() {
return "{$this->message}";
}
}
?>