Question

我有2 array datas，("a","b","c")和("x","y","z")，如何混合它们并将结果放在(ax)|(ay)|(az)|(bx)|(by)|(bz)|(cx)|(cy)|(cz)？（每个$array1 + $array2组合成一个新词）。

$array1 = array("a","b","c");
foreach($array1 as $data1){

}
$array2 = array("x","y","z");
foreach($array2 as $data2){

}
//$output = '(ax)|(ay)|(az)|(bx)|(by)|(bz)|(cx)|(cy)|(cz)';

Answer 1

$array = array();
$array1 = array("a","b","c");
$array2 = array("x","y","z");
foreach($array1 as $data1){
 foreach($array2 as $data2){
  $array[] = '('.$data1.$data2.')';
 }
}
echo implode('|', $array);

Answer 2

<?php

$array1 = array("a","b","c");
$array2 = array("x","y","z");

$array3 = array();

foreach($array1 as $data1){
    foreach($array2 as $data2){
        $array3[] = "($data1$data2)";
    }
}

echo implode('|', $array3);

// (ax)|(ay)|(az)|(bx)|(by)|(bz)|(cx)|(cy)|(cz)

Answer 3

您需要使用嵌套循环：

$items = array();

foreach($array1 as $a)
{
    foreach($array2 as $b)
    {
        $items[] = '(' . $a . $b . ')';
    }
}
echo implode('|', $items); // (ax)|(ay)|(az)|(bx)|(by)|(bz)|(cx)|(cy)|(cz)

php 2 foreach结果好坏参半

3 个答案: