What is PhpDig?
PhpDig is a PHP MySQL based
Web Spider & Search Engine.

gettype
Prev	LXV. Variable-Related Functions	Next

gettype

Name

gettype — Finds the type of a value.

Synopsis

string gettype(value); mixed value: Value whose type you want to find

Returns

String containing the type of the value

Description

gettype() returns the type of the value argument. The value returned is one ofinteger,double,string, array,class,object, unknown type, orNULL.

Example

Example 1383. Find the type for an undefined variable

// $value has not been defined - let's see what type it is
$type = gettype ($value);
print "The type of variable <i>\$value</i> is <i>$type</i>.";

Example 1384. Show the type for each value in a list of values

<pre>
<?
// Make a list of values to test
$values = array (
    'array (1,2)' => array (1,2),
    'TRUE' => TRUE,
    1.23 => 1.23,
    1 => 1,
    '0xFF' => 0xFF,
    'NULL' => NULL,
    "dir('.')" => dir('.'),
    "opendir ('.')" => opendir ('.'),
    "'1.23'" => '1.23',
    'Hello' => 'Hello',
);

// Loop through the values
// Displaying the type for each value
foreach ($values as $key => $value)
    printf ("<b>%-24s</b> %s\n", $key, gettype ($value));

?>
</pre>

Prev	Home	Next
get_resource_type	Up	intval

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.