您可以使用此问题：convert month from name to number

@Matthew的回答似乎运作良好：

$date = date_parse('July');;
echo $date["month"];

工作方案

$months = array("April","August","February");

usort($months,"compare_months");
var_dump($months);

function compare_months($a,$b) {
    $monthA = date_parse($a);
    $monthB = date_parse($b);

    return $monthA["month"] - $monthB["month"];
}