如何使用php将数组拆分为2 ?

Help me to split or divide an array into 2 different arrays. Here is my single array

帮我把一个数组分割成两个不同的数组。这是我的单个数组

$array = array("1","2","3","4","5","6");

I want the above array into two array like below

我想把上面的数组分成如下所示的两个数组

$array1 = array("1","2","3");

$array2 = array("4","5","6");

3 个解决方案

#1

Use array_chunk:

使用array_chunk:

$pieces = array_chunk($array, ceil(count($array) / 2));

---

If you want them in separate variables (instead of a multi-dimensional array), use list:

如果你想把它们放在单独的变量中(而不是多维数组)，请使用列表:

list($array1, $array2) = array_chunk($array, ceil(count($array) / 2));

#2

array_slice works well as long as you know how many elements you want in each array:

只要知道每个数组中需要多少元素，array_slice就能很好地工作:

$array1 = array_slice($array, 0, 3);
$array2 = array_slice($array, 3, 3);

#3

If you want to split an array in two sub-array with an index delimiter that is not array_size/2, you can use the function array_slice like that :

如果您想将一个数组分成两个子数组，其中一个索引分隔符不是array_size/2，那么可以使用函数array_slice:

$init_array = array("foo", "bar", "toto");
$index = 1;
$array_1 = array_slice($init_array, 0, $index);
$array_2 = array_slice($init_array, $index);

To print the result :

打印结果:

print_r($init_array);
print_r($array_1);
print_r($array_2);

The output :

输出:

Array([0] => foo [1] => bar [2] => toto)
Array([0] => foo)
Array([0] => bar [1] => toto)