PHP日期比较问题

Question

I am trying to see if a date is between the first and last of the current month. I have tried to convert the following $dateInfo string to a date, so I can compare the values... How can I accomplish this? DateInfo has to be in the format below.

Variables:

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

The comparison:

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

Answer 1

Try using DateTime object:

<?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

Try this:

$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';}
}

Good luck!

Answer 3

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

这对我有效

Answer 4

You can compare timestamps with DateTime::getTimestamp .

$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();