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decbin

Name

decbin — Returns the binary representation of the specified decimal integer argument.

Synopsis

string decbin(dec); int dec: Decimal number

Returns

String binary representation of an integer

Description

Converts a decimal number into a string containing its binary representation. The largest decimal value that can be converted is 2147483647. If you have to deal with larger numbers, you need to write a custom function to handle the values.

Version

PHP 3, PHP 4

Example

Example 669. Get the binary representation of an integer

$number = 42;
echo "The binary of $number is ", decbin($number);

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PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at http://www.opencontent.org/openpub/). The authors of this book have elected not to choose any options under the OPL. This online book was obtained from http://www.fooassociates.com/phpfer/ and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.