分解数组，以便每个第二个元素位于不同的数组中

Question

因此，我想采用一个“未排序”数组，并从“未排序”数组中取出第二个元素，然后将其放入一个新数组中，所以剩下的就是两个数组。

$unsorted = array("present","Bob","late","Jessie","late","Carl","present","Jessica","absent","Adam","present","Hope");

我想创建一个for循环，但是找不到任何函数来创建两个数组。

任何帮助将不胜感激，谢谢！

Answer 1

一种选择是使用经典foreach循环。$unsorted = array("present","Bob","late","Jessie","late","Carl","present","Jessica","absent","Adam","present","Hope");$array1 = array();$array2 = array();foreach( $unsorted as $key => $val ) {    if ( $key % 2 ) $array2[] = $val;    else $array1[] =  $val;}$array1 将导致：Array(    [0] => present    [1] => late    [2] => late    [3] => present    [4] => absent    [5] => present)$array2 将导致：Array(    [0] => Bob    [1] => Jessie    [2] => Carl    [3] => Jessica    [4] => Adam    [5] => Hope)

Answer 2

很简单，但需要一些理解：$unsorted = array("present","Bob","late","Jessie","late","Carl","present","Jessica","absent","Adam","present","Hope");$sorted = array_map(null, ...array_chunk($unsorted, 2));print_r($sorted);