PHP日期对比问题

Question

我想查看日期是否在当月的第一个和最后一个月之间。我试图将下面的$ dateInfo字符串转换为日期，所以我可以比较这些值...我该如何实现这一点？ DateInfo必须采用以下格式。

变量：

$dateInfo = '20150624T14:49:59' 
$dFirst = new DateTime('first day of this month'); 
$dLast = new DateTime('last day of this month'); 

比较：

if(($dateInfo >= $dFirst) && ( $dateInfo<= $dLast)){ 
    echo 'something';} 
} 

Answer 1

尝试使用DateTime对象：

<?php 
$dateInfo = new DateTime('20150724T14:49:59'); 
$dFirst = new DateTime('first day of this month'); 
$dLast = new DateTime('last day of this month'); 

if (($dateInfo >= $dFirst) && ($dateInfo <= $dLast)) { 
    $string = "%s is between %s and %s"; 
    printf($string, $dateInfo->format('d/M/Y'), $dFirst->format('d/M/Y'), $dLast->format('d/M/Y')); 
} 

Answer 2

试试这个：

$dateInfo = strtotime('20150624T14:49:59'); 
$dFirst = strtotime(date('01-m-Y')); // first day of month 
$dLast = strtotime(date('Y-m-t')); // last day of month 

if(($dateInfo >= $dFirst) && ( $dateInfo<= $dLast)){ 
    echo 'something';} 
} 

祝你好运！

Answer 3

$dateInfo = new DateTime('20150624T14:49:59'); 

这个工作形成了我

Answer 4

您可以DateTime::getTimestamp比较时间戳。

$dateInfo = '20150724T14:49:59'; 

$myDate = new DateTime($dateInfo); 

$dFirst = new DateTime('first day of this month'); 
$dLast = new DateTime('last day of this month'); 

$occursThisMonth = $dFirst->getTimestamp() <= $myDate->getTimestamp() && 
        $myDate->getTimestamp() <= $dLast->getTimestamp();