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PHP - Manual: Ds\Set::merge - 互联网笔记

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PHP官方手册 - 互联网笔记

PHP - Manual: Ds\Set::merge

2025-05-14

Ds\Set::merge

(PECL ds >= 1.0.3)

Ds\Set::mergeReturns the result of adding all given values to the set

说明

public Ds\Set::merge(mixed $values): Ds\Set

Returns the result of adding all given values to the set.

参数

values

A traversable object or an array.

返回值

The result of adding all given values to the set, effectively the same as adding the values to a copy, then returning that copy.

注意:

The current instance won't be affected.

示例

示例 #1 Ds\Set::merge() example

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

var_dump($set->merge([3, 4, 5]));
var_dump($set);
?>

以上示例的输出类似于:

object(Ds\Set)#2 (6) {
  [0]=>
  int(1)
  [1]=>
  int(2)
  [2]=>
  int(3)
  [3]=>
  int(4)
  [4]=>
  int(5)
}
object(Ds\Set)#1 (3) {
  [0]=>
  int(1)
  [1]=>
  int(2)
  [2]=>
  int(3)
}
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官方地址:https://www.php.net/manual/en/ds-set.merge.php

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