Does php determine whether a web crawler or a browser accesses a website?

It is used to distinguish between browser and web crawler access. the main implementation code is as follows: php determines whether a web crawler or a browser accesses a website? December 25, 2013 score 2.6, out of 5 stars 10 votes + Add comments 136 read

I added an access count to my blog last night.

The main implementation code is as follows:

// Determine whether the crawler function isCrawler () {$ userAgent = strtolower ($ _ SERVER ['http _ USER_AGENT ']); $ spiders = array ('googlebot ', // Google crawler 'baidider Ider ', // Baidu crawler 'Yahoo! Slurp ', // Yahoo crawler 'yodaobot', // Youdao crawler 'msnbot '// Bing crawler // more crawler keywords); foreach ($ spiders as $ spider) {$ spider = strtolower ($ spider); if (strpos ($ userAgent, $ spider )! = False) {return true;} return false ;}