0
How do I subtract an example time:
<?php
$hora = "00:12:00"
eco $hora;
?>
How do I get like this :
11:12:00
0
How do I subtract an example time:
<?php
$hora = "00:12:00"
eco $hora;
?>
How do I get like this :
11:12:00
2
$hora = "00:12:00";
echo date("g:i:s", srttotime("-1 Hour", strtotime($hora)));
1
One option is to use the method sub
to subtract an interval using the DateInterval
in which PT1H
represents 1 hour. See:
$date = new DateTime('00:12:00');
$date->sub(new DateInterval('PT1H'));
echo $date->format('h:i:s') . "\n";
Behold working at Ideone.
0
I believe that this is not the appropriate way to do this, but I created this function for such action:
<?php
function menosUmaHora($string) {
$hora = explode(':', $string);//Cria uma array com 3 posições: 0 hora, 1 minuto, 2 segundo
$hora[0] = (int) $hora[0]; //converte de string para inteiro
$hora[1] = (int) $hora[1]; //converte de string para inteiro
$hora[2] = (int) $hora[2]; //converte de string para inteiro
if ($hora[0] <= 0) { //Verifica se o valor da posição hora é menor ou igual a 0
$hora[0] = 11; //Se sim, posição hora agora é 11
} else {
$hora[0] --; //Se não, posição hora terá 1 subtraido
}
return implode(':', $hora);//Monta a string em ordem hh:mm:ss e retorna
}
$string = "00:12:00";
echo "Old hour: " . $string . '<br>';
echo "New hour: " . menosUmaHora($string);
?>
-1
Returns one hour before the current date and time.
date('d/m/Y H:i', strtotime('-1 hour', strtotime(date('Y-m-d H:i:s'))));
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