访问两个全局数组

Question

如何访问存储数组的两个全局变量？我想同时输出两个数组。

应该是"12345"；然后是"；abcde">

$number = [1,2,3,4,5];
$str = ["a", "b", "c", "d", "e"];


function twoMassive(){
$names = ["number", "str"];

foreach($names as $items){
yield $GLOBALS[$items];   // according to the plan, the elements of the $number 
// array should come out first, and then $str
}
};


foreach(twoMassive() as $items){
echo $items;
}

Answer 1

您可以使用yield from从数组中生成所有值：

<?php
$number = [1,2,3,4,5];
$str = ["a", "b", "c", "d", "e"];


function twoMassive(){
$names = ["number", "str"];

foreach($names as $items){
yield from $GLOBALS[$items];   // according to the plan, the elements of the $number 
// array should come out first, and then $str
}
};


foreach(twoMassive() as $items){
echo $items;
}

示例