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@ 2013-09-03T11:00:38Z

<?php
$satz = '??halägerlo ich bi? .n.. der satz.';
$satz = preg_replace('/[^a-z0-9-üßäö]+\s/', ' ', $satz);
$satz = preg_replace('/[^a-z0-9-üßäö\s\?]+/', '', $satz);
print_r($satz);

Output
Performance
VLD
References
Branches

print_r: documentation ( source)
preg_replace: documentation ( source)

preferences:dark modelive preview

38.51 ms | 402 KiB | 5 Q