subtracting timestamps

[newbiePHP]

Hey guys,

 

I have read so much stuff on timestamps over the last few hours that i think my head has melted.

 

I have a very simply problem.

 

I have 2 timestamps and I need to find the time between them.

 

I include a bit of the code I'm using.

 

I know from echos that $Realtime[0]= 2007-08-28 15:24:44    and $Timestamp[1]= 2007-08-28 10:00:01

 

but when i echo out $Realtime[1] i just get 0. I'm going to be taking timestamps away from each other a lot so I'm going to write a function that takes in 2 timestamps and returns there difference in H:m:s

 

Can someone help me with this please.

 

$Realtime[1] = $Realtime[0] - $Timestamp[1];

 

Any help would be great!!

Thanks

[PHP_PhREEEk]

strtotime might convert those to native Unix timestamps. You need to have it in Unix format to subtract... then you will need to convert it back into something meaningful to look at.

 

PhREEEk

[newbiePHP]

hey PHP_PhREEEk,

 

strtotime didn't seem to work. What parameters do you need to pass?

 

I just typed

strtotime($Realtime[0]); 

 

but it gave an error

 

Thanks for the reply

[PHP_PhREEEk]

<?php
$data = '2007-08-28 15:24:44';
$data = strtotime("$data");
echo "We converted 2007-08-28 15:24:44 to a Unix Timestamp: $data<br><br>"; 
echo "When converted back with date(), we get: " . date('Y-m-d H:i:s', $data);

 

PhREEEk

[newbiePHP]

Thats great PhREEEk

 

Thanks.

 

Just one last thing. if I had

$data = '2007-08-28 15:24:44';

 

How do I get $data=15:24:44;

In other words how do i knock of the date and just be left with the time?

[PHP_PhREEEk]

<?php
$data = '2007-08-28 15:24:44';
$data = strtotime("$data");
echo "We converted 2007-08-28 15:24:44 to a Unix Timestamp: $data<br><br>"; 
echo "When converted back with date(), we get: " . date('H:i:s', $data);

 

lol... time and date stuff is really easy...

 

PhREEEk

[newbiePHP]

Thanks for your help

[PHP_PhREEEk]

Quite welcome! = ^)

 

PhREEEk