允许的内存大小在Browscap中耗尽

Question

I have downloaded the library browscap version 2.0 and added this code

$browscap = new Browscap('/tmp');
$browscap->doAutoUpdate = false;
$current_browser = $browscap->getBrowser();

The problem is when I am trying to get information about the current browser I'll have an error

Allowed memory size of 268435456 bytes exhausted (tried to allocate 281 bytes) in ....phpbrowscap-2.0/src/phpbrowscap/Browscap.php on line 677

I do not want to increase the memory because I will be losing performance since my code is executed on every load page. So I tried debugging the code, I noticed that he is checking a lot of browsers. There is a lot of values in $tmp_user_agents and he is looping over this variable.

Is there anyway to get the functionality of this library without taking too much time? Or am I missing something in how it works

Answer 1

Well Browscap has a very very huge database and to load that (and iterate over it) on EVERY single page hit is of course not very efficient. The "ini" file I downloaded on their website has 7.5MB!!! That PHP runs out of memory is easy to understand. I would not recommend to use this library in this case.

I only checked their website and the resource file - not the code - but it seems as if they only look for the User-Agent String to verify the browser (which is very easy to fake by the way).

Have you ever looked at this PHP function: http://php.net/manual/de/function.get-browser.php Enough output for your needs?