php opencart crop调整大小#opencart

Posted 2021-05-04

public function cropresize($filename, $width, $height) {
		if (!is_file(DIR_IMAGE . $filename)) {
			if (is_file(DIR_IMAGE . 'no_image.jpg')) {
				$filename = 'no_image.jpg';
			} elseif (is_file(DIR_IMAGE . 'no_image.png')) {
				$filename = 'no_image.png';
			} else {
				return;
			}
		}

		$extension = pathinfo($filename, PATHINFO_EXTENSION);

		$image_old = $filename;
		$image_new = 'cache/' . utf8_substr($filename, 0, utf8_strrpos($filename, '.')) . '-' . (int)$width . 'xx' . (int)$height . '.' . $extension;

		if (!is_file(DIR_IMAGE . $image_new) || (filectime(DIR_IMAGE . $image_old) > filectime(DIR_IMAGE . $image_new))) {
			list($width_orig, $height_orig, $image_type) = getimagesize(DIR_IMAGE . $image_old);

			if (!in_array($image_type, array(IMAGETYPE_PNG, IMAGETYPE_JPEG, IMAGETYPE_GIF))) {
				return DIR_IMAGE . $image_old;
			}

			$path = '';

			$directories = explode('/', dirname($image_new));

			foreach ($directories as $directory) {
				$path = $path . '/' . $directory;

				if (!is_dir(DIR_IMAGE . $path)) {
					@mkdir(DIR_IMAGE . $path, 0777);
				}
			}

			if ($width_orig != $width || $height_orig != $height) {
				$image = new Image(DIR_IMAGE . $image_old);
				$image->resize($width, $height,'h');
				$image->save(DIR_IMAGE . $image_new);
			} else {
				copy(DIR_IMAGE . $image_old, DIR_IMAGE . $image_new);
			}
		}

		$imagepath_parts = explode('/', $image_new);
		$new_image = implode('/', array_map('rawurlencode', $imagepath_parts));

		if (isset($this->request->server['HTTPS']) && (($this->request->server['HTTPS'] == 'on') || ($this->request->server['HTTPS'] == '1'))) {
			return $this->config->get('config_ssl') . 'image/' . $new_image;
		} else {
			return $this->config->get('config_url') . 'image/' . $new_image;
		}
	}