开始吧&end month和Year中month的时间戳

常用函数:http://php.net//manual/ru/function.cal-days-in-month.phphttp://php.net/manual/ru/function.mktime.php

<?php
    $array = array('Month' => 07, 'Year' => 2014);
    $daysCount = cal_days_in_month(CAL_GREGORIAN, $array['Month'], $array['Year']); //obtain month days count
    $firstDay = mktime(0, 0, 0, $array['Month'], 1, $array['Year']); //obtain timestamp of specified month first day
    $lastDay = mktime(0, 0, 0, $array['Month'], $daysCount, $array['Year']); //obtain timestamp of specified month last day
    echo 'First: '.$firstDay.' Last: '.$lastDay;
?>

可能是这样的:

$start_month_str = $array['year'] . '-' . $array['month'] . '-1 midnight';
$end_month_str = $start_month_str . ' + 1 month - 1 minute';
$start_month_stamp = strtotime($start_month_str);
$end_month_stamp = strtotime($end_month_str);