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@ 2013-09-29T05:50:29Z

<?php
$n = 1;
while ($n < 6){
	$sub = 'sub'.(string)$n;
    print_r($sub);
    $n = $n+1;
}

Output
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print_r: documentation ( source)

preferences:dark modelive preview

34.31 ms | 402 KiB | 5 Q