get hours, days, from two differents dates. PHP

================================================ v0.1 ============================================

<?php
function GetTimeFormat( $actual_date, $last_join )
{
$pDate = new DateTime('2019-11-30 03:55:06'); // actual date
$sDate = new DateTime('2019-11-30 11:55:06'); //last join

$aTime = $pDate -> diff( $sDate );

$aYears = $aTime -> format('%Y');
$aMonths = $aTime -> format('%m');
$aDays = $aTime -> format('%d');
$aHour = $aTime -> format('%H');
$aMin = $aTime -> format('%i');
$aSec = $aTime -> format('%s');

if ( $aYears == 00 && $aMonths == 0 && $aDays == 0 && $aHour == 0 && $aMin == 0 ) $time = 'few secs.';
else if ( $aYears == 00 && $aMonths == 0 && $aDays == 0 && $aHour == 0 ) $time = $aMin . ' minutes.';
else if ( $aYears == 00 && $aMonths == 0 && $aDays == 0 ) $time = $aHour . ' hours and ' . $aMin . ' minutes.';
else if ( $aYears == 00 && $aMonths == 0 ) $time = $aDays . ' days, ' . $aHour . ' hours and ' . $aMin . ' minutes';
else if ( $aYears == 00 ) $time = $aMonths . ' months, ' . $aDays . ' days, ' . $aHour . ' hours and ' . $aMin . ' minutes';
else  $time = $aYears . ' years, ' . $aMonths . ' months, ' . $aDays . ' days, ' . $aHour . ' hours and ' . $aMin . ' minutes';
echo $time;

//output 09 hours and 0 minutes
?>