Thank you was useful

<?php

    for ($n = 1; $n < 100; $n++) {

        print implode('.', array(intval(mt_rand(0,255)),
                           intval(mt_rand(0,255)),
                           intval(mt_rand(0,255)),
                           intval(mt_rand(0,255)))) . "\n";
    }

?>
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