Round off a number

[iBram007]

I have this:

$size = @filesize($path);
$size = $size/1024;
$size = // wich function?

when $size = 0.2365489
the output has to be this: 0.24

wich function do I need?

[freakysid]

Two choices:

1) Use printf() to format the number when it is printed out
http://www.php.net/manual/en/function.printf.php

printf( %.2f, $size );

or

2) use round() to actually round the value
http://www.php.net/manual/en/function.round.php

$size = round($size, 2);

[iBram007]

thanx, another question:

my server time is now 7.27 in the morning
at home it is now 00.27 in the moring,
i tried to fix it like this:

gmdate("d M Y H:i",time() - 25200);

But this doesn't work...

[Son Nguyen]

What do you mean it doesn't work?
It returns a string, so it should be:

echo gmdate("d M Y H:i",time() - 25200);

[freddydoesphp]

How about:

print date("d M Y H:i", mktime(date("H") - 7,0,0,date("m"),date("d"),date("Y"))); 

[iBram007]

Freddydoesphp's output: 02 Mar 2001 05:49 (here it is 0:49)
SonNguyen' output: 02 Mar 2001 05:49 (here it is 0:49)

Both codes works, but they have a wrong output



oh, freakysid,

your printf( %.2f, $size );
gives the following error:
Warning: printf(): too few arguments in /myhosts/www/pubhtmldir

your $size = round($size, 2);
gives the following error:
Warning: Wrong parameter count for round() in /myhost/www/pubhtml/index.php on line 89


eeeeehhhhhhh, I'm in trouble

[exbabylon]

i don't know about time... but as for the rounding...

$size = round ($size, 3); 

that should work... I just tried it!

[freddydoesphp]

Okay use this for the rounding

$size = number_format($size, 2); 

For the date offset

Do you want to make your home time the same as the server time?

print date("d M Y H:i", mktime(date("H") + 7,0,0,date("m"),date("d"),date("Y"))); 

[freakysid]

he,he - I'm pretty ignorant about printf

As for round() wrong number of parameters. My code was for php4. Are u using php3?

[iBram007]

Freakysid, I'm sure I have PHP4 installed!
so...
I'll try your stuff tonight!

And Freddy

Do you want to make your home time the same as the server time?

No, I just want to turn back server time 7 hours

[Son Nguyen]

One thing, you called gmdate -> GMT date, so your call will return GMT-7 and not servertime -7

use this:
echo date("d M Y H:i",time() - 25200);

[iBram007]

Yeah, that works fine!
I've got the solution for my first problem now now the second

round a number off...

[freddydoesphp]

Hmm... You must be doing something different than everyone else, because I just did these two and they both work exactly as shown below.

<?
$num = 3434.42635675367;
print round($num, 2);
?>

prints 3434.43

AND

<?
$num = 3434.42635675367;
print number_format($num, 2);
?>

prints 3,434.43

[iBram007]

thnx thnx thnx, everything works fine now, except:

this:

$time = @date("d M Y H:i",time() - 25200, filemtime($path)); 

when I echo $time, there nothing printed...

[freddydoesphp]

What is with the three args for the date function, it only takes two, the format to disalpy the date and time source. YOu have an extra one in there, the filemtime(*) what purpose is to serve? try taking the @ off to see what error you are getting

[iBram007]

well, normally it's this:

$time = @date("d M Y H:i", filemtime($path)); 

This function works! I'm using this to get upload date of a file (php ftp prog)
But I want this time offset

So I tried this:

$time = @date("d M Y H:i",time() - 25200, filemtime($path)); 

But this doesn't work...

Oh, I tried to leave the "@", but it's the same, when i print the $time, it's a blank field...

[freddydoesphp]

From the manual

int filemtime (string filename)

Returns the time the file was last modified, or false in case of an error. The time is returned as a Unix timestamp

So since filemtime() returns a unix timestamp you should be able to use for subtractubg 7 hours from it

$time = date("d M Y H:i", filemtime($path) - 25200); 

BTW What is with your other post the links got sorted by date see my reply.

[Marty H.]

For those on php3 the round function can be used to round a number to 2 decimal places as follows.

$num = 0.12345;
$num = $num*100; //out put is 12.345
$num=round($num); //rounds number to 12
$num=$num/100; //out put is 0.12 

If you need 3 decimal places change the 100's to 1000's. It is crude but works on both php3 and php4.

[iBram007]

Everything is all right now!!!
Thank you very much!

I'm using this now:
for the date:

$time = date("d M Y H:i",filemtime($path) - 25200); 

in stead of round(), i use this:

printf ("%.2f",$size); 

up to my next thread