3v4l.org

run code in 150+ php & hhvm versions
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<?php $text='UK"H+O%pSWh]UZ-T%UhRGzAGh '; $outText=''; for($i=0;$i<strlen($text);$i++) { $outText .= $text[$i] ^ $text[$i % 32]; } echo $outText; ?>
Output for 4.3.0 - 7.1.0
]1cY@C