removing characters

[Alicia]

Hi,

 

May I know how can I remove all characters after the first 3 characters after .

 

e.g : 123.512645124

 

I want to maintain 123.512 without rounding up.

 

Please advise and thanks. I wanted to use strstr and trim functions but I am not able to use it to get what I want.. can some guru please assist .. thanks again

[smerny]

$number = 123.512645124;

$number = floor($number * 100) /100;

[sunfighter]

Without rounding up, using string functions:

<?php
$number = 123.512645124;
$part = explode('.', $number);
$part[1] = substr($part[1], 0, 3);
$number = implode('.', $part);
echo $number;
?>