<?php
function get_time_differenceFromToday($fromDate)
{
$uts[‘start’] = strtotime( $fromDate );//date format YYYY-MM-DD HH:MM:SS
$uts[‘end’] = time();//unix timestamp //strtotime( $end )
if( $uts[‘start’]!==-1 && $uts[‘end’]!==-1 )
{
if( $uts[‘end’] >= $uts[‘start’] )
{
$diff = $uts[‘end’] – $uts[‘start’];

if($diff > 604800)
{
return date(“m-d-Y H:i”,strtotime($fromDate));
}
else
{
if( $weeks=intval((floor($diff/604800))) )
$diff = $diff % 604800;
if( $days=intval((floor($diff/86400))) )
$diff = $diff % 86400;
if( $hours=intval((floor($diff/3600))) )
$diff = $diff % 3600;
if( $minutes=intval((floor($diff/60))) )
$diff = $diff % 60;
$diff = intval( $diff );
if($weeks==0)
{
$weeks = “”;
}
else
{
$weeks = $weeks.” week “;
}
if ($days == 0)
{
$days = “”;
}
else
{
$days = $days.” days “;
}
if($hours == 0)
{
$hours = “”;
}
else
{
$hours = $hours.” hours “;
}
if ($minutes == 0)
{
$minutes = “”;
}
else
{
$minutes = $minutes.” minute “;
}
if ($diff == 0)
{
$second = “”;
}
else
{
$second = $diff.” second “;
}
return ” “.$weeks.$days.$hours.$minutes.$second.”ago”;
//return( array(‘weeks’=>$weeks,’days’=>$days, ‘hours’=>$hours, ‘minutes’=>$minutes, ‘seconds’=>$diff) );
}

}
else
{
return “Ending date/time is earlier than the start date/time”;
}
}
else
{
return “Invalid date/time data detected”;
}
return( false );
}

Calculate number of days,hours, minute, seconds passed from todays date to some past date

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