how to calculate 2 hours from the time request made in seconds - php

Question

My server time is GMT, so I convert it to Asia/Kuala Lumpur timing.I need to calculate time difference between current time and the time request was made. The time request was made is stored in database and retrieved in $reset_req variable.
$reset_req="2015-06-30 11:30:23";
$timezone_offset = +8; // us central time (gmt-6) for me
if(isset($reset_req)){
$request_date2 = strtotime($reset_req)+$timezone_offset*60*60;
}
echo "current time= ".strtotime(time());
echo"<br/>";
echo "time req made=".strtotime($request_date2);
echo"<br/>";
$timediff = strtotime(time()) - strtotime($request_date2); // in seconds
if($timediff < 2 hours)//how to calculate 2 hours here
{
//do something
}

Answer 1

Everyone already said how to calculate 2 hours (2* 3600sec). But what they didn't tell you is that you can't do this: strtotime(time()); time(); already gives you a Unix timestamp so you can't convert it twice.
Your Code should look more like this
<?php
$reset_req = "2015-06-30 11:30:23";
$timezone_offset = +8; // us central time (gmt-6) for me
if(isset($reset_req)){
$request_date2 = strtotime($reset_req)+$timezone_offset*60*60;
$current = time();
} else {
echo '$reset_req was not set';
exit;
}
echo "current time= " . $current . "<br />";
echo "time req made=" . $request_date2 . "<br />";
$timediff = $current - $request_date2; // in seconds
if($timediff < (2*3600))//how to calculate 2 hours here
{
echo "less than 7200 sec have past since $request_date2. Past: $timediff seconds";
}else{
echo "more than 7200 sec have past since $request_date2. Past: $timediff seconds";
}
?>

Answer 2

$hour = 3600; //an hour has 3600 seconds
if($timediff < 2 * $hour )
{
//do something
}

Answer 3

$timediff is in seconds. So you have to convert that to hours or convert the 2 hours to seconds and then need to compare like as follows:
replace
if($timediff < 2 hours)//how to calculate 2 hours here
{
//do something
}
with
if($timediff < (2*3600))//how to calculate 2 hours here
{
//do something
}

Answer 4

Try this
<?php
$reset_req = "2015-06-30 11:30:23";
//set default timezone here
date_default_timezone_set("Asia/Kuala_Lumpur");
$request_date2 = '';
if(isset($reset_req))
{
$request_date2 = strtotime($reset_req);
}
echo "Current time = ".time();
echo"<br/>";
echo "Time req made =".$request_date2;
echo"<br/>";
$timediff = time() - $request_date2; // in seconds
echo "<br>Time Differnce : ".$timediff;
//how to calculate 2 hours here
if($timediff < 2*3600)
{
//do something
}
?>