Description:
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In the Danish and Norwiegan alphabeth we have the chars ?, ? and ?
The correct sequence is ??? (end of alphabeth after z)
sort(), sorts it ???

Reproduce code:
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$theString="???";
$theString=str_split($theString);
sort($theString);
$theString=implode($theString);
echo $theString

// Outputs ???

Expected result:
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???

:)

Actual result:
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???