Question 41368 in PHP Question posted in
Official manual can be found here.

PHP tell if a timestamp lies anywhere in the previousDay

Currently I am doing this to take the difference in days for two timestamps

function getDifferenceInDaysTillNow($timestamp) {
    try {
      $streakLastAwardedAtDateTime = DateTime::createFromFormat('U', $timestamp);
      $streakLastAwardedAtDateTime->setTimezone(new DateTimeZone('Asia/Kolkata'));

      $nowDateTime = new DateTime();
      $nowDateTime->setTimezone(new DateTimeZone('Asia/Kolkata'));

      $diff = $streakLastAwardedAtDateTime->diff($nowDateTime);
      return $diff->format('%a');
    }catch(Exception $e) {
      throw new Exception($e);
    }
  }

PHP Fiddle for the above approach

This gives a difference of 1 (1day) if the timestamps have 24hours difference.

But I just want to know if a timestamp lies in the previous day.
For example it can just be a difference of 2hours or 6hours doesn’t matter.

I want to return a Boolean (true or false) telling if the provided timestamp lies in the previousDay or not.

Any help is appriciated.
Thank you.

Tags:

2

Answers


  1. 0

    For this, you can simply check if the y or m property is greater than 0. If yes, return false. If the d difference is greater than 1, then also we need to return false since the difference is more than 1 day.

    Additional check is to make sure the timestamp isn’t the same day as today.

    <?php
function getDifferenceInDaysTillNow($timestamp) {
    try {
      $streakLastAwardedAtDateTime = DateTime::createFromFormat('U', $timestamp);
      $streakLastAwardedAtDateTime->setTimezone(new DateTimeZone('Asia/Kolkata'));
  
      $nowDateTime = new DateTime();
      $nowDateTime->setTimezone(new DateTimeZone('Asia/Kolkata'));
  
      // check difference between lastStreakAward and now
      $diff = $streakLastAwardedAtDateTime->diff($nowDateTime);
      if($diff->y > 0 || $diff-> m > 0 || $diff->d > 1) return false;
      return date("Y-m-d", $timestamp) != date("Y-m-d");
    }catch(Exception $e) {
        throw new Exception($e);
    }
}

$timestamp = 1670211229; // Monday, 5 December 2022 09:03:49 GMT+05:30
var_dump(getDifferenceInDaysTillNow($timestamp));

    Online Demo

    Login or Signup to reply.
  2. 0

    A DateTime object is created from the timestamp, then converted to the correct time zone with setTimeZone and the time is set to 00:00. Then it can be compared directly with ‘yesterday’.

    $timestamp = 1670211229;  //5 December 2022 09:03:49

$timeZone = new DateTimeZone('Asia/Kolkata');
$date = date_create('@'.$timestamp)
  ->setTimeZone($timeZone)
  ->setTime(0,0,0,0)
;
$isTimeStampFromYesterday = ($date == date_create('yesterday',$timeZone));
    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search