get_resource_type
(PHP 4 >= 4.0.2, PHP 5, PHP 7)
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 NULL and generate an error if handle is not a resource.
Changelog
Version | Description |
|---|---|
PHP 5.3.0 | If handle is not a resource this functions returns NULL. Formerly, FALSE has been returned. |
Examples
Example #1 get_resource_type() example
<?php
// prints: mysql link
$c = mysql_connect();
echo get_resource_type($c) . "\n";
// prints: stream
$fp = fopen("foo", "w");
echo get_resource_type($fp) . "\n";
// prints: domxml document
$doc = new_xmldoc("1.0");
echo get_resource_type($doc->doc) . "\n";
?>← get_defined_vars
gettype →
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