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  • get_resources()

    版本:php7

    (PHP 7)

    Returns active resources

    说明

    get_resources([string $type]): array

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

    参数

    $type

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

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

    If omitted, all resources will be returned.

    返回值

    Returns anarrayof currently active resources, indexed by resource number.

    范例

    Unfilteredget_resources()

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

    以上例程的输出类似于:

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

    Filteredget_resources()

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

    以上例程的输出类似于:

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

    参见

    ¿Se pueden usar con matrices de más de una dimensión?

    上篇:get_required_files()

    下篇:getenv()