PHP - Manual: Ds\Set::copy
2024-11-15
(PECL ds >= 1.0.0)
Ds\Set::copy — Returns a shallow copy of the set
此函数没有参数。
Returns a shallow copy of the set.
示例 #1 Ds\Set::copy() example
<?php
$a = new \Ds\Set([1, 2, 3]);
$b = $a->copy();
// Updating the copy doesn't affect the original
$b->add(4);
print_r($a);
print_r($b);
?>
以上例程的输出类似于:
Ds\Set Object ( [0] => 1 [1] => 2 [2] => 3 ) Ds\Set Object ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 )