get_defined_vars
gettype
Variable handling Functions
PHP Manual

# get_resource_type

(PHP 4 >= 4.0.2, PHP 5)

get_resource_type — Returns the resource type

### Description

string get_resource_type ( resource `$handle` )

This function gets the type of the given resource.

### Parameters

`handle`

  The evaluated resource handle.

### Return Values

If the given `handle` is a resource, this function will return a string representing its type. If the type is not identified by this function, the return value will be the string Unknown.

This function will return `FALSE` and generate an error if `handle` is not a resource.

### Examples

Example#1 get_resource_type() example

`<?php
// prints: mysql link
$c = mysql_connect();
echo get_resource_type($c) . "\n";
// prints: file
$fp = fopen("foo", "w");
echo get_resource_type($fp) . "\n";
// prints: domxml document
$doc = new_xmldoc("1.0");
echo get_resource_type($doc->doc) . "\n";
?>`

get_defined_vars
gettype
Variable handling Functions
PHP Manual