[ISDP] 20170518 2nd midterm 3

Question

Write a PHP script to extract the user name from the email address.
Sample String : [email protected]
Expected Output : rayy

Answer 1

Hidden content!
***** ** ** * *** ****** * * * * ** * * * * **

Answer 2

Hidden content!
** ***** * *** * * ** ** **** ** ** * *
* ** *** ** * * ** *** *** * * * * * ***

Answer 3

Hidden content!
**
* * * **** ** *** ** **
** = * * * ** '@', true);

echo * ** * * * * * *
* *****

Answer 4

Hidden content!
** * *** ** * *** * ** * **** ** ** * *** *