Home Backend Development PHP Tutorial 百货公司类网站的商品图片是怎样显示的

百货公司类网站的商品图片是怎样显示的

Jun 13, 2016 pm 12:00 PM
class driver library php thinkphp

商城类网站的商品图片是怎样显示的
后台只上传一张最大象素的商品图片。
前台如果都显示这张大的,那网站太大了。
现在商城类的网站他们的图片是怎样显示的?
(前台那里可以看到小,中,大size的图片)
是不是通过php改那张最大象素的图片后显示?

还是另外有别的方法?
谢谢
------解决方案--------------------
生成缩略图....
------解决方案--------------------
生成不同比例的图片,需要什么比例,只要进行设置比例即可,可以找个php缩略图类

------解决方案--------------------
商城或类似CMS一般都有模板,上传图片后就按模板的尺寸生成多个缩略图保存在服务器
------解决方案--------------------
thinkphp框架下一个完整版,ThinkPHP\Library\Think\Image\Driver\Gd.class.php看这个类thumb方法
缩略图生成策略有2种,上传时同步生成,页面调用时生成

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