Join Up!
104886 members and counting!

 
downloads | documentation | faq | getting help | mailing lists | reporting bugs | php.net sites | links 
search for in the  
previousget_resource_typeimport_request_variablesnext
Last updated: Tue, 28 May 2002
view the printer friendly version or the printer friendly version with notes or change language to Czech | German | Spanish

gettype

(PHP 3, PHP 4 >= 4.0.0)

gettype -- Get the type of a variable

Description

string gettype ( mixed var)

Returns the type of the PHP variable var.

Varoitus

Never use gettype() to test for a certain type, since the returned string may be subject to change in a future version. In addition, it is slow too, as it involves string comparision .

Instead, use the is_* functions.

Possibles values for the returned string are:

  • "boolean" (since PHP 4)

  • "integer"

  • "double" (for historical reasons "double" is returned in case of a float, and not simply "float")

  • "string"

  • "array"

  • "object"

  • "resource" (since PHP 4)

  • "NULL" (since PHP 4)

  • "user function" (PHP 3 only, deprecated)

  • "unknown type"

For PHP 4, you should use function_exists() and method_exists() to replace the prior usage of gettype() on a function.

See also settype(), is_array(), is_bool(), is_float(), is_integer(), is_null(), is_numeric(), is_object(), is_resource(), is_scalar(), and is_string().

User Contributed Notes
gettype
add a note about notes
There are no user contributed notes for this page.
previousget_resource_typeimport_request_variablesnext
Last updated: Tue, 28 May 2002
Copyright © 2001, 2002 The PHP Group
All rights reserved.
This mirror generously provided by: http://phpbuilder.com/
Last updated: Thu Oct 31 18:34:28 2002 EST