Round number down the to the nearest hundredth using php [duplicate]

Question

I'm probably not looking hard enough but the common question about php rounding is rounding up, not down.

For example I am trying round this..

<?php $roundDown = 768; ?>

Down to..

<?php var_dump($roundDown) /* 700 */ ?>

Whats the simplest method to do this, or is it because the number is closer to 800 that it's not technically rounding?

Whats the function that I need to do this if it's not rounding?

A little point in the right direction would be much appreciated.

Answer 1

You can try ceil() and floor() function.

 echo floor(768 / 100) * 100;  // Output:700
 echo ceil(768 / 100) * 100;  // Output:800