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<?php $z=$j=$argv[1];while($j){$i=(--$j&&$i)?$z.str_pad('',strlen($z)*($z-2)).$z:str_repeat($z,$z);echo"$i\n";}

Success #stdin #stdout #stderr 0.02s 52472KB

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Standard output is empty

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PHP Notice:  Undefined offset: 1 in /home/jDRDHZ/prog.php on line 1

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PHP (php 7.3.5)

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