Как изменить размер изображения в этом коде

Question

Как изменить размер изображения в этом коде

Yii::$app->params['uploadPath'] = Yii::$app->basePath . '/uploads/';
if ($model->load(Yii::$app->request->post())) {
$image = UploadedFile::getInstance($model, 'photo');
$model->filename = $image->name;
$ext = end((explode(".", $image->name)));
$model->photo = Security::generateRandomKey().".{$ext}";
$path = Yii::$app->params['uploadPath'] . $model->photo;
if($model->save()){
$image->saveAs($path);
return $this->redirect(['view', 'id' => $model->id]);
}
} else {
return $this->render('create', [
'model' => $model,
]);
}

Я хочу, чтобы изображение изменило размер кода.
Так какой код добавлен в этот код?

0

php yii2

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Accepted Answer

Try this code:
// add this method on your controller and then use resize
function resize($imagePath, $destinationWidth, $destinationHeight, $destinationPath)
{
if (file_exists($imagePath)) {
$imageInfo = getimagesize($imagePath);
$sourceWidth = $imageInfo[0];
$sourceHeight = $imageInfo[1];
$source_aspect_ratio = $sourceWidth / $sourceHeight;
$thumbnail_aspect_ratio = $destinationWidth / $destinationHeight;
if ($sourceWidth <= $destinationWidth && $sourceHeight <= $destinationHeight) {
$thumbnail_image_width = $sourceWidth;
$thumbnail_image_height = $sourceHeight;
} elseif ($thumbnail_aspect_ratio > $source_aspect_ratio) {
$thumbnail_image_width = (int) ($destinationHeight * $source_aspect_ratio);
$thumbnail_image_height = $destinationHeight;
} else {
$thumbnail_image_width = $destinationWidth;
$thumbnail_image_height = (int) ($destinationWidth / $source_aspect_ratio);
}
$destinationWidth = $thumbnail_image_width;
$destinationHeight = $thumbnail_image_height;
$mimeType = $imageInfo['mime'];
$destinationWidth = $thumbnail_image_width;
$destinationHeight = $thumbnail_image_height;
$destination = imagecreatetruecolor($destinationWidth, $destinationHeight);
if ($mimeType == 'image/jpeg' || $mimeType == 'image/pjpeg') {
$source = imagecreatefromjpeg($imagePath);
imagecopyresampled($destination, $source, 0, 0, 0, 0, $destinationWidth, $destinationHeight, $sourceWidth, $sourceHeight);
$destinationPath = $destinationPath;
imagejpeg($destination, $destinationPath);
} else if ($mimeType == 'image/gif') {
$source = imagecreatefromgif($imagePath);
imagecopyresampled($destination, $source, 0, 0, 0, 0, $destinationWidth, $destinationHeight, $sourceWidth, $sourceHeight);
$destinationPath = $destinationPath;
imagegif($destination, $destinationPath);
} else if ($mimeType == 'image/png' || $mimeType == 'image/x-png') {
$source = imagecreatefrompng($imagePath);
imagecopyresampled($destination, $source, 0, 0, 0, 0, $destinationWidth, $destinationHeight, $sourceWidth, $sourceHeight);
$destinationPath = $destinationPath;
imagepng($destination, $destinationPath);
} else {
echo 'This image type is not supported.';
}
} else {
echo 'The requested file does not exist.';
}
}
// ==========================================================
$destinationPath = Yii::$app->params['uploadPath'] ."resize/". $model->photo;//note: create new directory (resize) in uploads directory
$this->resize($path, $destinationWidth=100, $destinationHeight=100, $destinationPath);

2