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@ 2018-12-13T20:08:32Z

<?php

$a = 'a';
$n = 50;
$i = 0;
$k = 0;

while ( $i < $n ) echo str_repeat($a, ++$i) . PHP_EOL;

Output
Performance
VLD
References
Branches

str_repeat: documentation ( source)

preferences:dark modelive previewkey bindings

38.73 ms | 404 KiB | 5 Q