Online PHP editor | output for CQlI1

@ 2015-11-01T13:47:06Z

<?php

/**
 * @param string $start
 * @param string $end
 * 
 * @return string[]
 */
function date_period_grid($start, $end)
{
    $start = new DateTime($start);
    $end   = new DateTime($end);
    
    $i = $end->diff($start);

	$days   = $i->days;
	$months = $i->y * 12 + $i->m + ($i->d ? 1 : 0);
	$years  = $i->y + (($i->m || $i->d) ? 1 : 0);
	
    if ($years > 1) {
    	$period = new DatePeriod($start, new DateInterval('P1Y'), $years);
    } elseif ($months > 1) {
    	$period = new DatePeriod($start, new DateInterval('P1M'), $months);
    } else {
    	$period = new DatePeriod($start, new DateInterval('P1D'), $days);
    }
    
    $result = [];
    foreach ($period as $date) {
        $result[] = $date->format('Y-m-d');
    }
    
    return $result;
}

var_dump(date_period_grid('2012-07-01', '2015-11-01'));

Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: array(5) { [0]=> string(10) "2012-07-01" [1]=> string(10) "2013-07-01" [2]=> string(10) "2014-07-01" [3]=> string(10) "2015-07-01" [4]=> string(10) "2016-07-01" }
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array(5) { [0]=> string(10) "2012-07-01" [1]=> string(10) "2013-07-01" [2]=> string(10) "2014-07-01" [3]=> string(10) "2015-07-01" [4]=> string(10) "2016-07-01" }

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