[英]Accessing elements in a multidimensional array in PHP
我試圖將列表中的每個子域與其主域名相關聯,我這樣做是這樣的:
<?php
$main_domains = ['example.co.uk','example.com','example.org'];
$subdomains = ['sub.example.com','ftp.example.org','ftp.example.co.uk','mail.example.com'];
$results = [];
foreach ($subdomains as $subdomain) {
foreach ($main_domains as $domain) {
if (strpos($subdomain, $domain) !== false) {
$results[$domain][] = $subdomain;
continue;
}
}
}
最終$results
包含以下內容:
array(3) {
["example.com"]=>
array(2) {
[0]=>
string(15) "sub.example.com"
[1]=>
string(16) "mail.example.com"
}
["example.org"]=>
array(1) {
[0]=>
string(15) "ftp.example.org"
}
["example.co.uk"]=>
array(1) {
[0]=>
string(17) "ftp.example.co.uk"
}
}
但是,我現在想這樣回顯信息:
<main domain> <sub domain>
<main domain> <sub domain>
...
IE:
example.com sub.example.com
example.com mail.example.com
example.org ftp.example.org
example.co.uk ftp.example.co.uk
我怎樣才能做到這一點?
最重要的是建立初始結構。
$dom=array('example.co.uk'=>array('ftp.example.co.uk','zzz.example.co.uk'));
foreach($dom as $domain=>$sub){
foreach($sub as $s){
echo $domain.' '.$s."\n";
}
}
輸出:
example.co.uk ftp.example.co.uk
example.co.uk zzz.example.co.uk
正是你所要求的。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.