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PHP Programming Challenge of the Day #1

Thread title: PHP Programming Challenge of the Day #1
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08-23-2011, 02:46 PM
#1
Arictos is offline Arictos
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  Old  PHP Programming Challenge of the Day #1

This is something that I find quite enjoyable that we do at work, it keeps us sharp :P See how you fair?

http://pastecode.com/1RC

We use the "Reply" button on PasteCode, and then paste it out to everyone at our work with our solutions at the end of the day.

08-23-2011, 04:55 PM
#2
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Pretty simple, replied.

edit: it seems to have gotten deleted from the paste so here it is
PHP Code:
<?
$a 
'Raphael';
$b 'Castiel';

echo 
"start $a $b <br />";

$a .= $b;
$b=substr($a,0,(strlen($a)-strlen($b)));
$a=substr($a,strlen($b));
echo 
"end $a $b <br />";
?>
This solution will work with any two strings regardless of length.

I'm interested in continuing with this so if you'd continue to post them that would be great. I'd also be happy to contribute if you want.

08-24-2011, 03:38 AM
#3
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PHP Code:
list($a$b) = array($b$a); 
Edit:

Originally Posted by Village Genius View Post
PHP Code:
<?
$a 
'Raphael';
$b 'Castiel';

echo 
"start $a $b <br />";

$a .= $b;
$b=substr($a,0,(strlen($a)-strlen($b)));
$a=substr($a,strlen($b));
echo 
"end $a $b <br />";
?>
In case anyone is interested, it occurred to me today that this is more or less an XOR swap.

08-25-2011, 08:13 PM
#4
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  Old

PasteCode doesn't modify the origional, but rather it gives you a new one :P

Good stuff so far though

Something one of my friends replied that isn't on this forum is:
http://pastecode.com/1eL

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08-25-2011, 08:50 PM
#5
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Originally Posted by Arictos View Post
PasteCode doesn't modify the origional, but rather it gives you a new one :P

Good stuff so far though

Something one of my friends replied that isn't on this forum is:
http://pastecode.com/1eL
That method would run into issues if the string itself has a ~ in it. That isn't really part of the challenge though.

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