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get_resource_id

(PHP 8)

get_resource_id Returns an integer identifier for the given resource

Description

get_resource_id ( resource $res ) : int

This function provides a type-safe way for generating the integer identifier for a resource.

Parameters

res

The evaluated resource handle.

Return Values

The int identifier for the given res.

This function is essentially an int cast of res to make it easier to retrieve the resource ID.

Examples

Example #1 get_resource_id() example

<?php
$handle = fopen('./storage/logs/lumen.log', 'rt');

echo (int) $handle . "\n\n";

echo get_resource_id($handle);

?>

The above example will output:

698

698

See Also

© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.get-resource-id.php