strval() converts any scalar value (string, integer, or double) to a string. Resource pointers passed to this function are converted to a string such as "Resource ID #1". If conversion of an array or object is attempted, the function only returns the type name of the value being converted (array and object, respectively).
Due to PHP's dynamic typing, use of strval() is almost never required. In most contexts where a scalar value should be a string, the value will simply act like a string. For example:
$double = 2.2; $string = "I am a string "; // The value of $double is used as a string - no explicit conversion is required print $string . $double; // Displays: I am a string 2.2
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.