- array_fill_keys: documentation ( source)
- range: documentation ( source)
<?php
$date = array_fill_keys(range(1, 12), array());
##Calculate Market Growth Multiplier
$numDates = count($date);
for ($i = 0; $i < $numDates; $i++) {
if ($i&1) {
continue;
}
echo $i;
}