heb me toch nog eens verdiept in het schrijven van een class om files te uploaden.
Allereerst het script: (upload.php)
<?php
/**************************************************\
Deze class is gemaakt door Günther Peeters
en is vrij voor gebruik
\**************************************************/
class upload {
public $error = array(), $succes = array('code' => '0', 'message' => 'Not Executed');
private $maxWidth, $maxHeight, $resizeImage, $maxSize, $allowedExtention, $notAllowedExtention, $newName, $folder, $autoRename, $permissie;
// Construct
function __construct(){
}
/**************************************************\
Instellingen
\**************************************************/
// Maximum breedde van de afbeelding
public function setMaxWidth($maxWidth = NULL){
$this->maxWidth = isset($maxWidth) ? $maxWidth : NULL;
}
// Maximum hoogte van de afbeelding
public function setMaxHeight($maxHeight = NULL){
$this->maxHeight = isset($maxHeight) ? $maxHeight : NULL;
}
// Afbeelding aanpassen bij upload
public function resize($status = NULL){
if ($status === 1 || $status === 'on' || $status === true){
$this->resizeImage = 1;
}
}
// Maximum grootte van de file
public function setMaxSize($setMaxSize = NULL){
$this->maxSize = isset($setMaxSize) ? $setMaxSize : NULL;
}
// Toegestane extenties
public function allowedExtention($extention = NULL){
if (isset($this->notAllowedExtention) && in_array($extention, $this->notAllowedExtention)){
$this->error['extentionAllowed'][$extention] = 'Already Exists In Not Allowed';
} else {
$this->allowedExtention = isset($this->allowedExtention) ? $this->allowedExtention : array();
if (!in_array($extention, $this->allowedExtention)){
$this->allowedExtention[] = isset($extention) ? $extention : NULL;
}
}
}
// Niet toegestane extenties
public function notAllowedExtention($extention = NULL){
if (isset($this->allowedExtention) && in_array($extention, $this->allowedExtention)){
$this->error['extentionNotAllowed'][$extention] = 'Already Exists In Not Allowed';
} else {
$this->notAllowedExtention = isset($this->notAllowedExtention) ? $this->notAllowedExtention : array();
if (!in_array($extention, $this->notAllowedExtention)){
$this->notAllowedExtention[] = isset($extention) ? $extention : NULL;
}
}
}
// Nieuwe naam geven aan de upload file
public function setNewName($name = NULL, $autoRename = NULL){
if ($autoRename === 1 || $autoRename === 'on' || $autoRename === true){
$this->autoRename = 1;
} else {
$this->autoRename = 0;
}
$this->newName = isset($name) ? $name : NULL;
}
// Uploaden naar folder
public function setFolder($folder = NULL){
$folder = ltrim($folder, '/');
$folder = rtrim($folder, '/');
if (is_dir($folder)){
$this->folder = $folder;
} else {
$this->error['folder'] = 'Folder Not Exists (<a href="'.$folder.'">'.$folder.'</a>)';
}
}
/**************************************************\
Controle van File
\**************************************************/
public function execute($file = NULL){
if (isset($file['error']) && $file['error'] === 0){
if (!empty($file)){
// Controleer extentie
$tmp = explode('.', $file['name']);
$extension = end($tmp);
if ((isset($this->allowedExtention) && !in_array($extension, $this->allowedExtention)) || (isset($this->notAllowedExtention) && in_array($extension, $this->notAllowedExtention))){
$this->error['extention'] = 'File Extention Not Allowed ('.$extension.')';
}
// Controleer grootte van de file
if (isset($this->maxSize) && $file['size'] > $this->maxSize){
$this->error['maxSize']['message'] = 'File Too Big';
$this->error['maxSize']['allowed'] = $this->setMaxSize;
$this->error['maxSize']['file'] = $file['size'];
}
// Controleer bestaande file
$this->folder = isset($this->folder) ? $this->folder : NULL;
$newName = isset($this->newName) ? $this->newName.'.'.$extension : $file['name'];
if (file_exists($this->folder.'/'.$newName)){
$this->autoRename = isset($this->autoRename) ? $this->autoRename : 0;
// Automatisch hernoemen als file al bestaat
if ($this->autoRename == 1){
$newName = str_replace('.'.$extension, '', $newName);
$makeNewName = $newName;
while (file_exists($this->folder.'/'.$makeNewName.'.'.$extension)){
$makeNewName = $newName.'_'.time();
}
$newName = $makeNewName.'.'.$extension;
} else {
$this->error['exists'] = 'File Already Exists';
}
}
// Controleer afbeelding
if (strpos($file['type'], 'image') === 0 && (isset($this->maxWidth) || isset($this->maxHeight))){
list ($width, $height) = getimagesize($file['tmp_name']);
if (isset($this->resizeImage) && $this->resizeImage === 1){
if ($width > $this->maxWidth || $height > $this->maxHeight){
// Controleer Extentie
$tmp = explode('.', $file['name']);
$extension = end($tmp);
$extension = isset($extension) ? strtolower($extension) : NULL;
switch ($extension){
case 'jpg':
$src = @imagecreatefromjpeg($file['tmp_name']);
break;
case 'jpeg':
$src = @imagecreatefromjpeg($file['tmp_name']);
break;
case 'png':
$src = @imagecreatefrompng($file['tmp_name']);
break;
default:
$src = @imagecreatefromgif($file['tmp_name']);
break;
}
@imagealphablending($src, true);
// Controleer breedde
if ($width > $this->maxWidth){
$newWidth = $this->maxWidth;
$newHeight = round(($height / $width) * $this->maxWidth);
}
// Controleer hoogte
if ($height > $this->maxHeight){
$newWidth = round(($width / $height) * $this->maxHeight);
$newHeight = $this->maxHeight;
}
// Afbeelding aanpassen
$tmpImg = @imagecreatetruecolor($newWidth, $newHeight);
@imagealphablending($tmpImg, false);
@imagesavealpha($tmpImg, true);
@imagecopyresampled($tmpImg, $src, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);
switch ($extension){
case 'jpg':
@imagejpeg($tmpImg, $file['tmp_name'], 100);
break;
case 'jpeg':
@imagejpeg($tmpImg, $file['tmp_name'], 100);
break;
case 'png':
imagepng($tmpImg, $file['tmp_name'], 9);
break;
default:
imagegif($tmpImg, $file['tmp_name'], 100);
break;
}
@imagedestroy($src);
@imagedestroy($tmpImg);
}
} else {
// Breedde
if ($width > $this->maxWidth){ $this->error['maxWidth']['message'] = 'Image width to big'; }
if ($width > $this->maxWidth){ $this->error['maxWidth']['allowed'] = $this->maxWidth; }
if ($width > $this->maxWidth){ $this->error['maxWidth']['image'] = $width; }
// Hoogte
if ($height > $this->maxHeight){ $this->error['maxHeight']['message'] = 'Image height to big'; }
if ($height > $this->maxHeight){ $this->error['maxHeight']['allowed'] = $this->maxHeight; }
if ($height > $this->maxHeight){ $this->error['maxHeight']['image'] = $height; }
}
}
// Controleer permissie
$this->permissie = (fileperms($this->folder) & 0x0002) ? 1 : 0;
if ($this->permissie !== 1){ $this->error['permission'] = 'No permission to upload file ('.substr(sprintf('%o', fileperms($this->folder)), -4).')'; }
// Geen fouten gevonden
if (count(array_keys($this->error, true)) === 0){
// Start upload file
if (!move_uploaded_file($file['tmp_name'], $this->folder.'/'.$newName)){
$this->succes = array('code' => '0', 'message' => 'Failed');
} else {
$this->succes = array('code' => '1', 'message' => 'File Upload Succeed: <a href="'.$this->folder.'/'.$newName.'">'.$this->folder.'/'.$newName.'</a>', 'filename' => $newName);
}
}
} else {
// Geen file mee gegeven
$this->error['empty'] = 'No File Found';
}
} else {
// Alle andere fouten
$this->error['file'] = 'No File Found';
}
}
}
?>De werking:
<?php
/**************************************************\
Include upload-file
\**************************************************/
require_once('upload.php');
/**************************************************\
Instellingen
\**************************************************/
// Start een nieuw upload
$upload = new upload;
// Maximum toegelaten Breedte en Hoogte
$upload->setMaxWidth(100);
$upload->setMaxHeight(100);
// Afbeelding resizen als het groter is dan toegelaten (1, on, true => aan)
$upload->resize(1);
// Afbeelding een nieuwe naam geven, indien naam al bestaat een timestamp toevoegen
$upload->setNewName('test', 1);
// Alleen afbeeldingen met jpg toestaan
$upload->allowedExtention('jpg');
$upload->allowedExtention('jpeg');
// Uploaden naar folder images
$upload->setFolder('images');
/**************************************************\
Controleer POST
\**************************************************/
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['submit'])){
// Upload uitvoeren
$upload->execute($_FILES['file']);
}
/**************************************************\
Toon meldingen
\**************************************************/
print '<pre>';
print_r($upload);
print '</pre>';
/**************************************************\
Een simpel form als voorbeeld
\**************************************************/
print '<form action="" method="post" enctype="multipart/form-data">';
print ' <input type="file" name="file" id="file">';
print ' <input type="submit" name="submit" id="submit" value="upload">';
print '</form>';
?>Woordje uitleg:
Een nieuwe upload starten
$upload = new upload;
Voor afbeeldingen:
$upload->setMaxWidth(getal); // Zet maximum breedte van de afbeelding
$upload->setMaxHeight(getal); // Zet maximum hoogte van de afbeelding
$upload->resize(waarde); // Waarde = 1, true of on :: Hierbij wordt de afbeelding aangepast aan de ingegeven breedte en hoogte of er wordt een foutmelding gegeven
Maximum grootte van de file:
$upload->setMaxSize(getal);
Extenties toestaan of weigeren:
$upload->allowedExtention('extention'); // Dit laat de extentie toe
$upload->notAllowedExtention('extention'); // Dit laat de extentie niet toe
Benaming:
$upload->setNewName('name', status);
name: Geef de file deze naam
status: 1, on, true :: Als er al een file bestaat automatisch hernoemen met een timestamp
status: 0, off, enz... :: Toont de foutmelding dat deze file al bestaat
Uploaden naar:
$upload->setFolder('path/to/folder'); // Geen verder uitleg
Uploaden uitvoeren:
$upload->execute($_FILES['file']);
Foutmeldingen:
$upload->error
Er worden foutmeldingen getoond bij alles wat niet correct is.
Uw gedacht is goud waard!
Als je ideeën of opmerkingen hebt, hoor ik het graag.
