- abs: documentation ( source)
- floor: documentation ( source)
<?php
function dias_transcurridos($fecha_i,$fecha_f)
{
$formato="d-m-Y";
$diff = abs(DateTime::createFromFormat($formato,$fecha_i)-DateTime::createFromFormat($formato,$fecha_f));
$years = floor($diff / (365*60*60*24));
$months = floor(($diff - $years * 365*60*60*24) / (30*60*60*24));
$days = floor(($diff - $years * 365*60*60*24 - $months*30*60*60*24)/ (60*60*24));
return $days;
};
echo dias_transcurridos(" 2014-06-01"," 2014-06-03");