get_browser() results empty/unknown result

I try to get browser information that includes platform,browser,version,... in php. But it gives result only for IE,Firefox. It won't give the result for other开发者_JAVA技巧 browser. Tell me the reason.

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Make sure you have an up-to-date browscap configuration file -- see Browser Capabilities Project.

And make sure the new browscap.ini file that you've downloaded is referenced in your php.ini file, by the browscap directive.

For example, here's what I have just put in my php.ini file, to test an up-to-date file :

[browscap]
; http://php.net/browscap
browscap = /home/squale/temp/1/php_browscap.ini