回复讨论(解决方案)
理论上 php 可以做任何事情
事实上php一直在做这件事情
事实上php一直在做这件事情
php与mysql，这两只，就可以搞定所有网站后台？
不然你以为PHP能做啥呢？？？
php可以让你做自己想做的事。
相信php，它可以
php还可以制作“阿姆斯特朗回旋加速喷气”
网站商品搜索系统，其实和php关系不大，你的商品存在数据库中，说白了还是靠数据库去搜索么。和语言没什么关系。
比如mysql的like就能搞定基本需求。
若是你的搜索要过去强大，数据多，支持分词等，那你可以使用sphinx。
不过依旧可以用php来调用。
PHP可以做很多事、
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