PHP Manual
Set
Removes all values

Ds\Set::clear

(PECL ds >= 1.0.0)

Ds\Set::clear — Removes all values

说明

public Ds\Set::clear ( void ) : void

Removes all values from the set.

参数

此函数没有参数。

返回值

没有返回值。

范例

Example #1 Ds\Set::clear() example

 <?php
$set = new \Ds\Set([1, 2, 3]);
print_r($set);

$set->clear();
print_r($set);
?>

以上例程的输出类似于：

Ds\Set Object
(
    [0] => 1
    [1] => 2
    [2] => 3
)
Ds\Set Object
(
)

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