php图片本地化

public function img($imageUrl)
    {
        $imageData = file_get_contents($imageUrl);
        $base64Image = base64_encode($imageData);
        $pos = strpos($base64Image, ',');
        if ($pos !== false) {
            $base64Image = substr($base64Image, $pos + 1);
        }
        $binaryData = base64_decode($base64Image);
        $tempFilePath = tempnam(sys_get_temp_dir(), 'img');
        file_put_contents($tempFilePath, base64_decode($base64Image));
        $imageInfo = getimagesize($tempFilePath);
        $mime = $imageInfo['mime'];
        $size = filesize($tempFilePath);
        $ext = mime2ext($mime);
 
        $targetPath = './public/uploads/Base64Image/';
        $fileName = date('Y-m-d-', time()).uniqid().'.'.$ext;
        file_put_contents($targetPath . $fileName, $binaryData);
        $path = '/public/uploads/Base64Image/'.$fileName;
        return $path;
    }