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remove dublicate lines form

111111
1111
11
222
222
33333
4444
1111
22

<textarea name="lines" cols="70" rows="30">
<?php 
$a=array_unique(explode("\n", $_POST['lines']));
#natsort($a);
echo implode("\n",$a);
?>
</textarea>


result:
111111
1111
11
222
33333
4444
22
to form lines remove dublicate by BlackHalt on Jun 08, 2007
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