How to identify web-crawler?

Question

How can I filter out hits from webcrawlers etc. Hits which not is human..

I use maxmind.com to request the city from the IP.. It is not quite cheap if I have to pay

Answer 1

I found this package, it's actively being developed and I'm quite liking it so far:

https://github.com/JayBizzle/Crawler-Detect

It's simple as this:

use Jaybizzle\CrawlerDetect\CrawlerDetect;

$CrawlerDetect = new CrawlerDetect;

// Check the user agent of the current 'visitor'
if($CrawlerDetect->isCrawler()) {
    // true if crawler user agent detected
}

// Pass a user agent as a string
if($CrawlerDetect->isCrawler('Mozilla/5.0 (compatible; Sosospider/2.0; +http://help.soso.com/webspider.htm)')) {
    // true if crawler user agent detected
}

// Output the name of the bot that matched (if any)
echo $CrawlerDetect->getMatches();