(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.
handle
The 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";
?>