PHP - Manual: Ds\Map::clear
2024-11-15
(PECL ds >= 1.0.0)
Ds\Map::clear — Removes all values
Removes all values from the map.
此函数没有参数。
没有返回值。
示例 #1 Ds\Map::clear() example
<?php
$map = new \Ds\Map([
"a" => 1,
"b" => 2,
"c" => 3,
]);
print_r($map);
$map->clear();
print_r($map);
?>
以上例程的输出类似于:
Ds\Map Object ( [0] => Ds\Pair Object ( [key] => a [value] => 1 ) [1] => Ds\Pair Object ( [key] => b [value] => 2 ) [2] => Ds\Pair Object ( [key] => c [value] => 3 ) ) Ds\Map Object ( )