<?php
setlocale(LC_ALL,"es_ES@euro","es_ES","esp");

function time_ago($time)
{
$periods = array("Segundo", "Minuto", "Hora", "D&iacute;a", "Semana", "Mes", "Año", "Decada");
$lengths = array("60", "60", "24", "7", "4.35", "12", "10");

$now = time();

$difference     = $now - $time;
$tense         = "Hace";

if($difference < 10){
    return "Hace instantes";
} else if (($difference > 10)&&($difference < 60)){
    return "Hace menos de un minuto";
} else if ($difference > 432000){//Equivalent to 5 days.
    return strftime(("El %A %d de %B del %Y"), $time);
}

for ($j = 0; $difference >= $lengths[$j] && $j < count($lengths)-1; $j++) {
    $difference /= $lengths[$j];
}

$difference = round($difference);



if ($difference != 1) {
    $periods[$j].= "s";
}

return "$tense $difference $periods[$j] ";
}

?>