[ISDP] 20170518 2nd midterm 3

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Write a PHP script to extract the user name from the email address.
Sample String : [email protected]
Expected Output : rayy
[Exercise] Essay (Open question) - asked in 2016-2 CSIEB0270 - Internet System Design and Practice by (18k points)
ID: 24646 - Available when: 2017-05-18 09:30:00 - Due to: 2017-05-18 12:00:00
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**** * * * * ** ** ****** * ** ******* * * ******
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* * ****** ** * ** * *** * * ** * *
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** * * * ** ** *** * *** *** ****** **
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* *** ** * html>
* * ** * ***
* * *** * **


****** *

$string = * * * * *****

$token = * * ** ** * **
*** * * * ** * * ** *

?>


*** * *
* *** * * **** **
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** * * * * ** *** ** *** * ** * *
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* * * * ** * *** * ******** ** ** ** ** ***
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* * *** *** * ** * * * * ** * * ** **** * *
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* ******* *** *** *** * * * * * ***
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** **
* ** = *** *

$user = * ****** * **

echo ***** * * *


** ** **
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*** * ** * * *
* * ***
*** * * ****
*** * *
$mailid = ** * *
$user = * * * * * '@', true);
echo * * **
** *
* ** ***
* ******* *
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