Working with decimal numbers in PHP

Question

I want to somehow round the numbers for a rating system in PHP as follows:

4.6667 = 4.6 5.0001 = 5.0 

Is there any way to do this? (BTW, I read the data from the database.)

Answer 1

You do not agree with any rule. For instance:

 4.6667 = 4.6 5.0001 = 5.1 

See these functions anyway:

round
ceil
floor

And number_format .

Answer 2

Use this:

 echo round(1.45667, 2); 

The number "2" is the number of decimal places you want.

This is conclusion 1.46.