如何用PHP将十进制整数转换为字节？

Question

I need to get how much bytes is a decimal integer with php. For example how can I know if 256,379 is 3-bytes with php? I need a php function to pass 256,379 as input and get 3 as output. How can I have it?

Answer 1

You need calculate logarithm like this:

echo ceil( log ($nmber, 256) );