Finds whether a variable is a resource

# is_resource

(PHP 4, PHP 5, PHP 7, PHP 8)

is_resource — Finds whether a variable is a resource

### Description

is_resource(mixed `$value`): bool

Finds whether the given variable is a resource.

### Parameters

`value`

  The variable being evaluated.

### Return Values

Returns `true` if `value` is a resource, `false` otherwise.

### Examples

Example #1 is_resource() example

`<?php
$handle = fopen("php://stdout", "w");
if (is_resource($handle)) {
echo '$handle is a resource';
}
?>`

The above example will output:

    $handle is a resource

### Notes

> Note:

> is_resource() is not a strict type-checking method: it will return `false` if `value` is a resource variable that has been closed.

### See Also

- The resource-type documentation
- get_resource_type() - Returns the resource type

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