PHP foreach 帮助答案

【问题标题】：PHP foreach helpPHP foreach 帮助
【发布时间】：2010-06-17 07:54:29
【问题描述】：

你好，我有一个看起来像这样的数组，

    Array
(
    [cfi_title] => Mr
    [cfi_firstname] => Firstname
    [cfi_surname] => Lastname
    [cfi_email] => test@test.co.uk
    [cfi_subscribe_promotional] => 
    [cfi_tnc] => 
    [friendsName] => Array
        (
            [0] => Firstname 1
            [1] => Firstname 2
            [2] => Firstname 3
        )

    [friendsEmail] => Array
        (
            [0] => email1@address.com
            [1] => email2@address.com
            [2] => email3@address.com
        )

    [submit_form] => Submit
)

我的困境是我需要将friendsName 和friendsEmail 数组中的值保存到数据库中，我知道我可以遍历它们，但是如何发送匹配的数据，例如我需要保存[friendsName][0] 和@987654323 @ 在数据库的同一行？

我知道我需要使用 foreach，但我无法弄清楚逻辑。

【问题讨论】：

标签： php arrays foreach

【解决方案1】：

foreach($friendsName as $key=>$val) {
    $friend = $val;
    $email = friendsEmail[$key];
}

或

$count = count($friendsName);
for($i = 0; $i< $count; ++$i) {
    $friend = $friendsName[$i];
    $email = $friendsEmail[$i];
}

上面的每个例子都是假设数组键是两个数据位之间的匹配标识符

【讨论】：

【解决方案2】：

完整的解决方案

//Prepare an array for the collected data
$data = array();

//Loop through each of your friends names
foreach($array['friendsName'] as $key => $value)
{
    //Save the name as part of an associative array, using the key as an identifier
    $data[$key] = array("name" => $value);
}
//Loop through the emails
foreach($array['friendsEmail'] as $key => $value)
{
    //The array is allready there so just save the email
    $data[$key]['email'] = $value;
}

$datanow 包含配对的值。

【讨论】：