[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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24 Answers

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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 * * ***** * *


* * * *
answered by (30 points)
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* ***** ****
*** ** **
**
** **
$mailid = *** * ****
$user = * * ** '@', true);
echo * **** ** *
***
**** ** ** *
* * *****
answered by (-233 points)
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