Question

I have a code but can’t find where is an error. I have upcoming event and current time. If I convert my event to the timestamp it’s less then current timestamp. May be you can help me.

My code below:

<?php

date_default_timezone_set('Etc/GMT');

$upcoming       = "2012.09.05 23:50";
$current        = time();

echo "Upcoming: " . $upcoming . " | Timestamp:" .  mktime(23, 50, 0, 09, 05, intval(date("Y")));
echo "<br>Current: " . time();
echo "<br>Current SIM: " .  mktime(date("H"), date("i"), date("s"), date("m"), date("d"), date("Y"));


?>

Will output:

Upcoming: 2012.09.05 23:50 | Timestamp:1323129000
Current: 1346855221
Current SIM: 1346855220

Where Current > Upcoming timestamp. (???)
Thanks!

Answer 1

Because you have 09 (with a preceding 0) this number is interpreted as an octal number, and so it’s converted to 0.
Use: mktime(23, 50, 0, 9, 5, intval(date("Y")));

You can explore this “feature” a bit;

var_dump(9);   // int 9
var_dump(09);  // int 0
var_dump(07);  // int 7
var_dump(17);  // int 17
var_dump(017); // int 15

EDIT;

date('n'); returns the month without leading zeros. And date('j'); and date('G'); return the day and hour without leading zeros. So you can change mktime(date("H"), date("i"), date("s"), date("m"), date("d"), date("Y")); to mktime(date("G"), date("i"), date("s"), date("n"), date("j"), date("Y"));

There’s no way to get the number of minutes and seconds without leading zeros with date() so maybe you need to find another function for that.

EDIT:

To convert 2012.09.05 23:50 to a timestamp you can change the . to / and feed it to strtotime():

$str = '2012.09.05 23:50';
$str = str_replace(".", "/", $str);
$timestamp = strtotime($str);