total horas de dos fechas

[mjgonzalez]

Gracias !
Este es el codigo q apliq:

function hourdiff($hour_1 , $hour_2 , $formated=false)
{
$h1_explode = explode(":" , $hour_1);
$h2_explode = explode(":" , $hour_2);

$h1_explode[0] = (int) $h1_explode[0];
$h1_explode[1] = (int) $h1_explode[1];
$h2_explode[0] = (int) $h2_explode[0];
$h2_explode[1] = (int) $h2_explode[1];

$h1_to_minutes = ($h1_explode[0] * 60) + $h1_explode[1];
$h2_to_minutes = ($h2_explode[0] * 60) + $h2_explode[1];

if($h1_to_minutes > $h2_to_minutes)
{
$subtraction = $h1_to_minutes - $h2_to_minutes;
}
else
{
$subtraction = $h2_to_minutes - $h1_to_minutes;
}
$result = $subtraction / 60 / 60;

if(is_float($result) && $formated)
{
$result = (string) $result;
$result_explode = explode(".",$result);
return $result_explode[0].":".(($result_explode[1]*60)/10);
}
else
{
return $result;
}
}
pero igual no me funciona =(