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User Agent iOS Version Number Detection Using Regular Expressions

If I have an iOS user agent like

Mozilla / 5.0 (iPhone, U, CPU iPhone OS 4_0, like Mac OS X, en-us) AppleWebKit / 532.9 (KHTML, e.g. Gecko) Version /4.0.5 Mobile / 8A293 Safari / 6531.22.7

or

Mozilla / 5.0 (iPhone, U, CPU iPhone OS 4_0, like Mac OS X, en-us) AppleWebKit / 532.9 (KHTML, e.g. Gecko) Mobile / 7D11

How can I detect an iOS version using regular expressions so that it returns, for example.

4.0

for the specified user agent?

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4 answers

RegEx, which works for me, is:

/OS ((\d+_?){2,3})\s/

iPad 5.1.1 has HTTP_USER_AGENT, like this:

"Mozilla/5.0 (iPad; CPU OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B206 Safari/7534.48.3"

, 3 iOS iPhone OS.

Ruby :

def version_from_user_agent(user_agent)
  version = user_agent.match(/OS ((\d+_?){2,3})\s/)
  version = version[1].gsub("_",".") if version && version[1]
end

, iOS

+9

, :

/iPhone OS (\d+)_(\d+)\s+/

, , , ...

php :

$txt = 'Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_0 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8A293 Safari/6531.22.7';
$reg = '/iPhone OS (\d+)_(\d+)\s+/';
$a   = array();
preg_match($reg, $txt, $a);

$str_version = $a[1].'.'.$a[2]; // This variable should now contain : 4.0
+5

2 3 , 4.0 6.1.3

/\b[0-9]+_[0-9]+(?:_[0-9]+)?\b/

Javascript:

> navigator.userAgent
  "Mozilla/5.0 (iPhone; CPU iPhone OS 6_1_2 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Mobile/10B146"
> navigator.userAgent.match(/\b[0-9]+_[0-9]+(?:_[0-9]+)?\b/);
  ["6_1_2"]

, , , iOS.

OS X Mac.

> navigator.userAgent
  "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_4) AppleWebKit/536.30.1 (KHTML, like Gecko) Version/6.0.5 Safari/536.30.1"
> navigator.userAgent.match(/\b[0-9]+_[0-9]+(?:_[0-9]+)?\b/);
  ["10_8_4"]

_ . .replace(/_/g,'.'); .split('_');.

_iOSDevice = !!navigator.platform.match(/iPhone|iPod|iPad/);
if(_iOSDevice)
 _iOSVersion = (navigator.userAgent.match(/\b[0-9]+_[0-9]+(?:_[0-9]+)?\b/)||[''])[0].replace(/_/g,'.');
+3

, - :

http://www.webapps-online.com/online-tools/user-agent-strings/dv/operatingsystem51849/ios

, :

(iPad|iPhone|iphone|iPod).*?(OS |os |OS\_)(\d+((_|\.)\d)?((_|\.)\d)?)

ios, x_y_z x.y.z, y z .

There are 7 lines of user agents that do not contain a version number, so these specific ones are not mapped. There is one sample line where the ios version is “7.1”, but the regular expression matches only the major version number “7” (that was enough for my use)

Like the tests on the page above, it was also tested against the ios10 agent strings listed on this page:

https://myip.ms/view/comp_browsers/1983/Safari_10.html

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