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@ 2014-04-30T15:40:32Z

<?php

$tpl = "AR42-8LNA-%sEQ3";

$char = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";

foreach($char as $letter) {
    printf($tpl, $letter);
    echo PHP_EOL;
}

Output
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printf: documentation ( source)

preferences:dark modelive preview

45.25 ms | 402 KiB | 5 Q