round up?

[AV1611]

I need to round up to the nearest dollar so for example $51,000.01 would be 52,000.00

 

Doesn't seem to be a way? do I need to add like $499.99 to the value then round to the nearest instead? or is there an easier way?

 

Thanks.

[rarebit]

add half a unit (whatever you want to round to) then round down...

[DarkWater]

That's not rounding up by dollars, it's rounding up by thousands.  You could do:

 

<?php
$val = 51000.01;
$newval = ceil($val * pow(10, -3)) * pow(10, 3);
echo $newval;
?>

 

Yay math!  And to add the .00 back, just use like, number_format().

[AV1611]

just checking...

how can I make it a function (I suck at functions...)

 

ty.

 

[DarkWater]

<?php
function ceil_nearest($number, $power) {
    if ($power < 1) {
        return false;
    }
    return ceil($number * pow(10, ($power * -1))) * pow(10, $power);
}

 

All you need to know is powers of 10.

[dezkit]

All you need to know is powers of 10.

 

Is there a article about that on php.net ?

[DarkWater]

I think an 8th grade algebra class would suffice, dezkit.  If you really want me to explain them, PM me. =/

[AV1611]

<?php
function ceil_nearest($number, $power) {
    if ($power < 1) {
        return false;
    }
    return ceil($number * pow(10, ($power * -1))) * pow(10, $power);
}

 

All you need to know is powers of 10.

thank you

[DarkWater]

Change it to:

 

<?php
function ceil_nearest($number, $power) {
    if ($power < 1) {
        return false;
    }
    elseif (pow(10, $power) > $number) {
        return pow(10, $power);
    }
    return ceil($number * pow(10, ($power * -1))) * pow(10, $power);
}

[jordanwb]

Is there a article about that on php.net ?

 

Why would there be an article on this?

 

I think an 8th grade algebra class would suffice, dezkit.  If you really want me to explain them, PM me. =/

 

Owned.

[DarkWater]

Is there a article about that on php.net ?

 

Why would there be an article on this?

 

I think an 8th grade algebra class would suffice, dezkit.  If you really want me to explain them, PM me. =/

 

Owned.

 

Lol, I know, right? xD

[The Little Guy]

give this a try: http://phpsnips.com/snippet.php?id=58

[jordanwb]

^ +1 for that one.