get_resources

(PHP 7, PHP 8)

get_resourcesReturns active resources

Descripción

get_resources(?string $type = null): array

Returns an array of all currently active resources, optionally filtered by resource type.

Nota: This function is meant for debugging and testing purposes. It is not supposed to be used in production environments, especially not to access or even manipulate resources which are normally not accessible (e.g. the underlying stream resource of SplFileObject instances).

Parámetros

type

If defined, this will cause get_resources() to only return resources of the given type. A list of resource types is available.

If the string Unknown is provided as the type, then only resources that are of an unknown type will be returned.

If omitted, all resources will be returned.

Valores devueltos

Returns an array of currently active resources, indexed by resource number.

Historial de cambios

Versión Descripción
8.0.0 type is nullable now.

Ejemplos

Ejemplo #1 Unfiltered get_resources()

<?php
$fp
= tmpfile();
var_dump(get_resources());
?>

El resultado del ejemplo sería algo similar a:

array(1) {
  [1]=>
  resource(1) of type (stream)
}

Ejemplo #2 Filtered get_resources()

<?php
$fp
= tmpfile();
var_dump(get_resources('stream'));
var_dump(get_resources('curl'));
?>

El resultado del ejemplo sería algo similar a:

array(1) {
  [1]=>
  resource(1) of type (stream)
}
array(0) {
}

Ver también

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