how to compare between two dates in php

Question

I have two dates start and end that are already booked

<?php
$arr2 = range(strtotime($_POST['start']), strtotime($_POST['end']), "86400");
//$arr2 = range(strtotime($row['check_out_date']),strtotime($row['check_in_date']), "86400");
//echo $arr1; 
array_walk_recursive($arr2, function(&$element) {
  $element = date("j-n-Y", $element);
});
//array_walk_recursive($arr2, function(&$element) { $element = date("d-n-Y", $element); });
$es = array();
//array_push($events, $e);
$name = json_encode($es);
//echo $name;    
foreach ($arr2 as $values) {
  $arr4[] = $values;
  echo $values;
}
?>

in arr4[] i am getting the between dates that are already booked like b/w 1-3 all dates, same i am getting that user want to booked dates,

how to compare that two dates, and match if dates are matching between then show alert dates are matching, else perfom insert query, so please help.

Answer 1

There are several ways to compare dates in PHP, but the method I use is using PHP's built-in DateTime class:

<?php
$timezone = new DateTimezone('America/Chicago');
$start = DateTime::createFromFormat('Y-m-d H:i:s','2016-01-01 00:00:00',$timezone);
$end = DateTime::createFromFormat('Y-m-d H:i:s','2016-02-02 00:00:00',$timezone);
// PHP 5.2.2 allows you to compare dates using differential operators
// Otherwise use DateTime::diff, http://php.net/manual/en/datetime.diff.php
if($start == $end){
    echo "Same!\n";
}
else {
    echo "Not Same!\n"
}
?>

Answer 2

this is my fanction to do that The function return a clause to date diffrent

you can compare some date and the current in 2 ways

timeDiff('123556568') // time()

timeDiff('20-6-2020') // any date format

timeDiff('20-6-2020','20-2-2120') // two dates 

timeDiff('143556568','123556568') // two dates 



    function timeDiff($time2_, $time1_ = false) {
            $date1 = new \DateTime();
            if ($time1_) {
// check if it timestamp or not 
                $time1 = preg_match('/[-\/]/', $time1_) ? strtotime($time1_) : $time1_;
                $date1->setTimestamp($time1);
            }
            $date2 = new \DateTime();
            $time2 = preg_match('/[-\/]/', $time2_) ? strtotime($time2_) : $time2_;
            $date2->setTimestamp($time2);
            $interval = $date1->diff($date2);
// get diffrence
            $diffrent_ = $interval->format('%Y Years %m Months %d Days %H:%I:%S');
// clean from zero values

            $diffrent = str_replace(['00 Years', ' 0 Months', ' 0 Days', '00:00:00'], '', $diffrent_);
// some change for 01 & s
            $returner = str_replace(['01 Years', ' 1 Months', ' 1 Days'], ['01 Year', ' 1 Month', ' 1 Day'], $diffrent);
            return trim($returner);
        }