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Re: How to convert binary to hexadecimal

by ikegami (Pope)
on Oct 11, 2007 at 13:49 UTC ( #644230=note: print w/ replies, xml ) Need Help??

in reply to How to convert binary to hexadecimal

That's a totally pointless requirement, but the following does achieve it:

$hex = sprintf('%X', oct("0b$bin"));

oct converts the binary representation of the number to a number, then sprintf '%X' converts it to its hex representation. It's never represented in decimal.

Update: Or maybe you're actually interested in converting bytes to their hex representation:

$hex = sprintf('%02X', ord($byte));

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