Question

我正在尝试使用PHP和Paypal的NVP TransactionSearch方法显示一系列交易。

我成功地显示了交易，但我无法整理响应并仅显示我之后的特定值 - 在这种情况下，每个事务只有以下4个值：

L_TIMESTAMP, 
L_TYPE, 
L_TRANSACTIONID

我目前的代码是：

$request = http_build_query(array(
    "METHOD"    => $action,
    "VERSION"   => $config['version'],
    "USER"      => $config['username'],
    "PWD"       => $config['password'],
    "SIGNATURE" => $config['signature'],
    "STARTDATE" => $start,
    "EMAIL" => $email,
));

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_VERBOSE, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);    
curl_setopt($ch, CURLOPT_POSTFIELDS, $request);

$result = curl_exec($ch);

if (!$result) {
    echo 'no results';
}

parse_str($result, $result);

foreach($result as $key => $value){
    echo $key.' => '.$value."<br />";
}

将一切输出如下：

L_TIMESTAMP0 => 2014-01-15T11:29:21Z
L_TIMESTAMP1 => 2014-01-15T11:09:05Z
L_TIMEZONE0 => GMT
L_TIMEZONE1 => GMT
L_TYPE0 => Refund
L_TYPE1 => Payment
L_TRANSACTIONID0 => 7MY22222222222914
L_TRANSACTIONID1 => 2045555555555594D

and so on...

我怎么能这样输出呢:(所以它经历了每个事务然后是下一个而不是每个'值'到下一个，再加上不显示TIMEZONE键）

L_TIMESTAMP0 => 2014-01-15T11:29:21Z
L_TYPE0 => Refund
L_TRANSACTIONID0 => 7MY22222222222914

L_TIMESTAMP1 => 2014-01-15T11:09:05Z
L_TYPE1 => Payment
L_TRANSACTIONID1 => 2045555555555594D

Answer 1

我认为数组数组将是更好的选择：

foreach($result as $k => $v) {
    preg_match('~([A-Z_]+)(\d+)$~', $k, $m);
    $nested[$m[2]][$m[1]] = $v;
}

创建一个这样的嵌套数组：

Array
(
    [0] => Array
        (
            [L_TIMESTAMP] => 2014-01-15T11:29:21Z
            [L_TIMEZONE] => GMT
            [L_TYPE] => Refund
            [L_TRANSACTIONID] => 7MY22222222222914
        )

    [1] => Array
        (
            [L_TIMESTAMP] => 2014-01-15T11:09:05Z
            [L_TIMEZONE] => GMT
            [L_TYPE] => Payment
            [L_TRANSACTIONID] => 2045555555555594D
        )

)

从中生成所需的输出应该很容易。

Answer 2

您可以在包装循环中使用array_filter。像这样：

for ($i = 0; ; $i++) {
        $arr = array_filter($result, function ($v) use ($i) {
                return substr($v, -1) == $i;
        });
        if (!$arr) break;
        foreach($arr as $key => $value){
            echo $key.' => '.$value."<br />";
        }
}

PHP - 遍历数组并仅显示某些值

2 个答案: