expendnumber.php

gistfile1.txt

<?php

$ten = 10;
$max = 15;
$current = 0;
$step = 0;
for ($i = 1; $i <= $max; $i++) {
    $b = $c = $i;
    $d = $current * 10;
    $count1 = $count2 = 0;
    while ($b % 10 == 0):
        $count1++;
        $b /= 10;
    endwhile;
    while ($c / 10 > 1 ):
        $count2++;
        $c /= 10;
    endwhile;
    $diff = abs($count1 - $count2);
    for ($k = 1; $k <= $diff; $k++) {
        $d *=10;
    }
    $current = $i + $d;
}

echo $current;