What is the Ds\Set merge() function in PHP?
The Ds\Set::merge() function in PHP is used to add all the given values to a set.
Syntax
The Ds\Set::merge() function can be declared as shown in the code snippet below:
Ds\Set public Ds\Set::merge ( mixed $values )
mixed ＄values: These are the values to be added to the set.
Return value
The Ds\Set::merge() function returns the set after adding the given values to it.
The values are not added to the original set. The values are added to a copy of the set and the original set remains unaffected.
Example
Consider the code snippet below, which demonstrates the use of the Ds\Set::merge() function.
<?php$s1 = new \Ds\Set([1, 2, 3]);var_dump($s1->merge([4, 5]));$s2 = new \Ds\Set(['a', 'b', 'c', 'd']);var_dump($s2->merge(['e']));?>
Explanation
-
In line 3, we declare a set
s1. -
In line 4, we add the given values to
s1usingDs\Set::merge(). -
In line 6, we declare another set
s2. -
In line 7, we add the given values to
s2usingDs\Set::merge().