The strpos(String Position) function will allow you to check if one string contains another string and will also determine the first occurrence of that string. This function has been very useful to me when parsing web pages and should prove useful for you too.
For more information, check out the website:
http://howtostartprogramming.com/PHP/...
On this page of the site you can watch the video online PHP Tutorial 21 - Find If String Contains a String (PHP For Beginners) with a duration of hours minute second in good quality, which was uploaded by the user TeachMeComputer 11 October 2011, share the link with friends and acquaintances, this video has already been watched 67,890 times on youtube and it was liked by 628 viewers. Enjoy your viewing!