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floor

Name

floor — Truncates the given argument to the integer portion.

Synopsis

int floor(i); float i: Number to be rounded

Returns

Next-lowest integer from the given argument; FALSE on error

Description

floor() is the opposite of ceil() . It rounds down a floating-point number to the next-lowest integer, no matter what the value of the floating-point number is.

Version

PHP 3, PHP 4

Example

Example 674. Truncate a floating-point number

$number = 12.923;
echo "The next smaller integer to $number is ", floor($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.