Quick way to generate your DOB arrays

A quick way to generate arrays for DOB drop down fields

$days = array();
$mons = array();
$years = array();

$days = array();
$mons = array();
$years = array();

for($i=1;$i<=31;$i++)
{
 $days[$i] = date("d", mktime(0, 0, 0,0, $i));
}

for($i=1;$i<=12;$i++)
{
 $mons[$i] = date("M", mktime(0, 0, 0, $i));
}

for($i=1950;$i<=1988;$i++)
{
 $years[$i] = $i;
}