ob_end_clean

<?php         imagejpeg($this->image->getCore(), null, $this->quality);

        $this->image->mime = image_type_to_mime_type(IMAGETYPE_JPEG);

        $buffer = ob_get_contents();

        ob_end_clean();



        return $buffer;

    }

<?php         imagepng($resource, null, -1);

        $this->image->mime = image_type_to_mime_type(IMAGETYPE_PNG);

        $buffer = ob_get_contents();

        ob_end_clean();



        return $buffer;

    }

<?php         imagegif($this->image->getCore());

        $this->image->mime = image_type_to_mime_type(IMAGETYPE_GIF);

        $buffer = ob_get_contents();

        ob_end_clean();



        return $buffer;

    }

<?php         imagewebp($this->image->getCore(), null, $this->quality);

        $this->image->mime = defined('IMAGETYPE_WEBP') ? image_type_to_mime_type(IMAGETYPE_WEBP) : 'image/webp';

        $buffer = ob_get_contents();

        ob_end_clean();

        

        return $buffer;

    }

<?php         imagebmp($this->image->getCore());

        $this->image->mime = defined('IMAGETYPE_BMP') ? image_type_to_mime_type(IMAGETYPE_BMP) : 'image/bmp';

        $buffer = ob_get_contents();

        ob_end_clean();

        

        return $buffer;

    }