PHP - Php Time (not Timedate) Difference

i have searched everywhere and no code seems to work. i have time1 and time 2 in the format Y-m-d H:i:s. i just don't know how to find the difference.

old time: 2011-04-11 20:15:46
   
new time: 2011-04-11 21:00:11

after i have the difference, i need to get a resource production per hour which is stored in the database and calculate the new value of the resource.


$production_per_hour = 100;
$time_old = "2011-04-11 20:15:46";
$time_new = "2011-04-11 21:00:11";
$current_resources = "500";

Problem;  Need to check to see if someone who requested a password re-set has done so with in 24hrs.  IF not- then it needs to prompt them to re-submit the request and deletes the previous re-submit code sent to them in their email.

I have everything else figured out (deleting re-set code) but I have not figured the checking of if they have done so within the 24hr time period.  Please tell me if the code below will accurately tell me if they complied with the 24 hour rule.

$time1 = '1284675867';// logged at the time of password re-set request.  Retrieved from database
$time2 = time();// captured in script when they actually re-set their password
$difference_between = $time2 - $time1;
if($difference_between >= '5,200,000')
{
echo "Sorry- you have exceeded the 24 hr rule and need to re-submit your request";
}


Compared to all that I have seen.........it appears rather simplistic.  Am I missing something or will this simple approach work?

For some reason when I echo $diff and $time_remaining it ALWAYS echos with values of 3 and 7 and not sure why.

Code: [Select]
$lock_date = $row['lock_date'];
                    $current_time = time();
                   
                    // Find out if user is locked out of their account
                    if (($lock_date != "0000-00-00 00:00:00") && strtotime($lock_date) < $current_time) {
                       
                        $lock_date = strtotime($lock_date);
                        $diff = $current_time - $lock_date;                       
                        $diff = floor($diff/6000);

                        // Take minutes and perform tasks
                        if ($diff <= 10) {
                           
                            // Calculate time remaining
                            $time_remaining = 10 - $diff;

                            // Account locked error
                            $errors = true;
                            $message = "Account is locked! Must wait " .$time_remaining." minutes to log in again!";
                           
                            $output = array('errorsExist' => $errors, 'message' => $message);
                           
                        } else {
                           
                            // Clear the lock
                            $query = "UPDATE users_logins_attempts SET lockDate = NULL, ip_address = NULL, failed_logins = 0 WHERE users_id = '".$users_id."'";
                            $result = mysqli_query($dbc,$query);
                           
                            // Account locked error
                            $errors = true;
                            $message = "Account is unlocked. You may now try to log in again!";
                           
                            $output = array('errorsExist' => $errors, 'message' => $message);
                           
                        }
                       
                    }

Hi,

I am trying to get the difference in time in mins, hours etc thingy. Now, for some reason I cannot get the right minutes or hours difference between two time stamps. Here is my code:

Code: [Select]
$postedTime=strtotime($comment_from_db->date_posted);
$currentTime=time();
$mins=floor(($currentTime-$postedTime)/60);
if($mins<=1){
echo $mins." minute ago by";
}elseif($mins>1){
if($mins>60){
$hrs=floor($mins/60);
if($hrs>24){
}else{
if($hrs<2){
echo $hrs. " hour ago by";
}else{
echo $hrs. " hours ago by";
}
}
}else{
echo $mins." minutes ago by";
}
}
Now, for a comment posted like 25 mins ago it shows it was posted 4 hours ago. For a comment posted around 10 hours ago it shows it was posted 16 hours ago.

What is the problem here?

I was doing a test and checked the time in seconds after an interval of 2 mins. Here are the results:
Comment posted: 1306669490
Current time: 1306683920

The difference is around 14430. This is not equal to 2 minutes. So, I am starting to think if the time I am getting is wrong? Should it have 10 digits? or less? I am not sure what is going on. Please, advice.

Thanks.

hiii,

Im wanting to calculate the time difference between $out2 and $in2 and out put it into a spreadsheet:
Code: [Select]
$m=0;
while ($m < $num9) {
$fullname=mysql_result($result9,$m,"username");
$date=mysql_result($result9,$m,"date");
$in1=mysql_result($result9,$m,"in1");
$out1=mysql_result($result9,$m,"out1");
$in2=mysql_result($result9,$m,"in2");
$out2=mysql_result($result9,$m,"out2");

$out2f=date("G:i:s",strtotime($out2));
$in2f=date("G:i:s",strtotime($in2));

echo  date("D",strtotime($date)). "\t" . $fullname . "\t" . $in1 . "\t". $out1 . "\t" . $in2 . "\t" . $out2 . "\t" . date("G:i:s",strtotime($out2f-$in2f)) . "\t" . "\n";
$m++;
}


header("Content-disposition: attachment; filename=spreadsheet.xls");
why does this code return 00:00:00 ?