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How do I convert bits into ints?

by faq_monk (Initiate)
on Oct 08, 1999 at 00:20 UTC ( #580=perlfaq nodetype: print w/replies, xml ) Need Help??

Current Perl documentation can be found at

Here is our local, out-dated (pre-5.6) version:

To turn a string of 1s and 0s like 10110110 into a scalar containing its binary value, use the pack() function (documented in pack):

    $decimal = pack('B8', '10110110');

Here's an example of going the other way:

    $binary_string = join('', unpack('B*', "\x29"));

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[LanX]: Maße and Masse are two very different words.
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[Tanktalus]: choroba: thanks, not sure why it wasn't doing that for me, but will try to figure it out. :)
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[Tanktalus]: anyway, next is to figure out how to get postgres to agree that these are the same :)

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