如何确定今天是否是PHP中每个月的第二个星期四？
这是我想的，但似乎不起作用。
if (date('d', strtotime('second thursday')))
这将与本月第二个星期四的日期相呼应：
<?php
echo date('d', strtotime('second thursday of this month'));
// Will echo 10, which is correct for april 2014
echo date('d', strtotime('second thursday of next month'));
// Will echo 08, which is correct for may 2014
echo date('d', strtotime('second thursday of previous month'));
// Will echo 13, which is correct for march 2014
针对您的问题的If声明：
<?php
if (date('d') == date('d', strtotime('second thursday of this month'))) {
echo 'Second thursday!';
} else {
echo 'Not the second thursday';
}