How does PHP find the content between two characters in a given string?

How does PHP find the content between two characters in a given string? & Lt; divclass = & quot; well & quot; & gt; & lt; p & gt; query IP address: & lt; code & gt; 219.245.125.100 & lt; /code & gt; from: in Xi'an city, Shaanxi province, how does PHP find the content between a specific two characters in a given string?

IP address to query:219.245.125.100From: Xi'an University of Electronic Science and Technology, Xi'an, Shaanxi province

GeoIP: Xidian, China

You have queried 14 times today and can query up to 100 times.

As shown above, you want to obtain "from:" and"

GeoIP: "How to deal with" xi 'an Electronic Technology University, Xi'an, Shaanxi province?

------ Solution --------------------

PHP code

$ S = <
IP address to query:219.245.125.100From: Xi'an University of Electronic Science and Technology, Xi'an, Shaanxi province
GeoIP: Xidian, China
You have queried 14 times today and can query up to 100 times.
Div; preg_match ('/from :(.*?) <\/P>
/', $ S, $ m); echo $ m [1];
------ Solution --------------------
Save the given string in $ current0

$ Current = '<

   
/', $ Current, $ result );
Echo $ result [1];