PHP array_merge()函数 (PHP array_merge() function)

array_merge() function is used to merge two or more arrays, it returns a new array with merged elements.

array_merge()函数用于合并两个或多个数组，它返回一个具有合并元素的新数组。

Syntax:

句法：

    array_merge(array1, array2,...);

It accepts two or more arrays and returns a new array with merged elements.

它接受两个或多个数组，并返回带有合并元素的新数组。

Examples:

例子：

    Input:
$arr1 = array(10, 20, 30, 40, 50);
$arr2 = array(60, 70, 80, 90, 10);
Output:
Array
(
[0] => 10
[1] => 20
[2] => 30
[3] => 40
[4] => 50
[5] => 60
[6] => 70
[7] => 80
[8] => 90
[9] => 10
)

PHP code 1: Merging two indexed arrays

PHP代码1：合并两个索引数组

<?php
$arr1 = array(10, 20, 30, 40, 50);
$arr2 = array(60, 70, 80, 90, 10);
//merging arrays
$arr3 = array_merge($arr1, $arr2);
//printing
print_r ($arr3);
?>

Output

输出量

Array
(
[0] => 10
[1] => 20
[2] => 30
[3] => 40
[4] => 50
[5] => 60
[6] => 70
[7] => 80
[8] => 90
[9] => 10
)

PHP code 2: Merging two associative arrays having different keys and values

PHP代码2：合并两个具有不同键和值的关联数组

<?php
$arr1 = array("a" => "Hello", "b" => "Hi");
$arr2 = array("c" => "Bye!", "d" => "Nothing");
//merging arrays
$arr3 = array_merge($arr1, $arr2);
//printing
print_r ($arr3);
?>

Output

输出量

Array
(
[a] => Hello
[b] => Hi
[c] => Bye!
[d] => Nothing
)

PHP Code 3: Merging two associative arrays having different keys and duplicate value

PHP代码3：合并两个具有不同键和重复值的关联数组

<?php
$arr1 = array("a" => "Hello", "b" => "Hi");
$arr2 = array("c" => "Hello", "d" => "Hi");
//merging arrays
$arr3 = array_merge($arr1, $arr2);
//printing
print_r ($arr3);
?>

Output

输出量

Array
(
[a] => Hello
[b] => Hi
[c] => Hello
[d] => Hi
)

PHP Code 4: Merging two associative arrays having duplicate keys and unique values

PHP代码4：合并两个具有重复键和唯一值的关联数组

<?php
$arr1 = array("a" => "Hello", "b" => "Hi");
$arr2 = array("a" => "Okay!", "d" => "Nothing");
//merging arrays
$arr3 = array_merge($arr1, $arr2);
//printing
print_r ($arr3);
?>

Output

输出量

Array
(
[a] => Okay!
[b] => Hi
[d] => Nothing
)

PHP Code 5: Merging indexed and associative arrays

PHP代码5：合并索引数组和关联数组

<?php
$arr1 = array(10, 20, 30, 40);
$arr2 = array("c" => "Hello", "d" => "Hi");
//merging arrays
$arr3 = array_merge($arr1, $arr2);
//printing
print_r ($arr3);
?>

Output

输出量

Array
(
[0] => 10
[1] => 20
[2] => 30
[3] => 40
[c] => Hello
[d] => Hi
)

翻译自: https://www.includehelp.com/php/array_merge-function-with-example.aspx