[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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