My First RegExp Try

Whenever I see the pattern I see on the examples of php.net/preg_match, I get much frustrated because I can't understand a thing, but when I saw the term "regular expressions" on a job pre-test question and it got connected with preg_match.

I discovered that this pattern is called regular expression which is explained in Regular Expression Details on php.net and from this I studied about regular expressions and applied it tonight using my new PHP code result previewer, and here's one of my bookmarked test