yii2 對遠端圖片壓縮處理的小經驗

要求安裝imageine

在類中 use yii\imagine\Image;

public function getImg($url,$path,$quality=80)
{
    $filename = pathinfo($url)['basename'];
// 判斷本地是否存在改檔案
if(file_exists('./img/lvyou/'.$filename))
        return false;
// 獲得圖片的大小
$re = getimagesize($url);
$width = $re['0'];
$height =   $re['1'
 
];
// 若不存在則獲得遠端圖片
$curl = curl_init($url);
curl_setopt($curl,CURLOPT_RETURNTRANSFER,1);
$imagedata = curl_exec($curl);
curl_close($curl);
// 儲存遠端圖片到伺服器
$filePath = \Yii::getAlias('@webroot/img/' . $path . '/' .$filename);
$tp = @fopen($filePath,'a');
fwrite($tp,$imagedata);
fclose($tp);
// 再進行壓縮
$img = new Image
 
();
Image::thumbnail($url, $width, $height)
        ->save($filePath, ['quality' => $quality]);
// 返回壓縮後的圖片
return $filename;
}