I have this simple file:
test.php
<?php
$date1='2018-01-09 16:14:01';
$date2='2018-01-09 17:30:04';
$dateS1 = new \DateTime($date1);
$dateS2 = new \DateTime($date2);
$dateDiff = $dateS1->diff($dateS2);
$result = $dateDiff->h . ' horas e ' . $dateDiff->i . ' minutos';
echo $result;
?>
In theory I should return the difference in hours and minutes, however, I only get back a blank page.
Do you think it could be the PHP version on my machine? I use version 5.1.6
According to the PHP Documentation the version must be greater than or equal to 5.3
For your version I found a Question already that can help you.
I've replicated your code in this website that contains the php server with 5.1.6 and it has a fatal error pois a classe nao está definida.
and as already stated in the php documentation the class datetime.diff is valid for php 5.3 or higher
As already replied, the class DateTime is available in versions PHP 5 >= 5.2.0 e PHP 7 .
What you can do around it is:
$data1 = '2018-01-09 16:14:01';
$data2 = '2018-01-09 17:30:04';
$unix_data1 = strtotime($data1);
$unix_data2 = strtotime($data2);
$nHoras = ($unix_data2 - $unix_data1) / 3600;
$nMinutos = (($unix_data2 - $unix_data1) % 3600) / 60;
printf('%02d:%02d', $nHoras, $nMinutos); // 01:16
Example on ideone