<?php
$count = 10;
$group = 4;
for ( $i = 1; $i <= $count; $i += $group ) {
echo '<div class="row">' . "\n";
for ( $j = 0; $j < $group && $j + $i <= $count ; $j++ ) {
echo "\t" . '<span>'.($j + $i).'</span>' . "\n";
}
echo '</div>' . "\n";
}
?>
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