正则表达式以匹配来自url的所有内容，但不包含子域

Question

i have the regex ~[^\\.]*\\.[az]{3}$~ which matches test.net for following url over preg_match:

url.test.net

Now i need a regex which matches test.net for the following url:

p59027s1628.url.test.net

Can anyone help me with that?

Answer 1

Try this regex:

(?<=url.).*$

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Regex live here.

Explaining:

(?<=url.)       # looks for "url." - without taking it
.*$             # matches everything till the end

Hope it helps.

Answer 2

You can use following regex :

[^.]+\.[a-z]*\.[a-z]{3}$

See demo https://regex101.com/r/bV7tM6/1

Or more precise you can use following regex:

(?:[a-z]*\.){2}[a-z]{3}$

See demo https://regex101.com/r/bV7tM6/2