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is_scalar

Name

is_scalar — Tests whether a value is a scalar.

Synopsis

bool is_scalar(value);
mixed value: Value or variable to test

Returns

TRUE if the value is a scalar; FALSE otherwise

Description

is_scalar() tests whether a value is a scalar value. Values of types boolean, double, integer, or string are considered to be scalar values.

If the value is a scalar, the function returns TRUE. If not, FALSE is returned.

Version

PHP Version: 4.0.5+

See also

gettype()

Example

Example 1399. Test whether a value is a scalar

$value = array (1);

if (is_scalar ($value))
    print "Value \$value is a scalar value.";
else
    print "Value \$value is not a scalar value.";



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.

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