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



gettype — Finds the type of a value.


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


String containing the type of the value


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


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

// 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));


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 The authors of this book have elected not to choose any options under the OPL. This online book was obtained from 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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