(PHP 4 >= 4.0.2, PHP 5, PHP 7)
get_resource_type — Returns the resource type
$handle
) : stringThis function gets the type of the given resource.
handleThe evaluated resource handle.
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.
| Version | Description |
|---|---|
| 5.3.0 |
If handle is not a resource this
functions returns NULL. Formerly, FALSE has been returned.
|
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";
?>