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我生成了一个看起来有点像这样的“主”数组:

Array ( [userID] => 152 [email] => xxxxx@googlemail.com [name] => Jay jay go go [stream] => 616 ) 
Array ( [userID] => 133 [email] => damxxxxian@indigo.com [name] => Damian T [stream] => 616 ) 
Array ( [userID] => 154 [email] => julie@indigo.com [name] => Julie1000 E [stream] => 615 [PROGRAMME] => Designer ) 
Array ( [userID] => 153 [email] => jay@indigo.com [name] => James1000 G [stream] => 616 [PROGRAMME] => Apple Develpepr ) 

这是通过单个数组循环的输出,因此这 4 个数组中的每一个都有键 0 - 3。

我的问题是我希望创建一个表来保存所有这些数据,每一行代表一个用户,但数组键可能略有不同。例如,前 2 个用户没有“程序”数组键/值,但我希望有一列说“程序”,但对于在他们的数组中没有这个的用户来说,它是空的。

希望这是有道理的。

4

3 回答 3

2

这可以通过将所有这些数组合并到一个数组中来实现。循环遍历数组中的每个项目,收集键(in_array 可能会有所帮助)。循环遍历您的键数组以打印出表中的所有列标题,然后当您的脚本需要输出数组时,您可以简单地在每个人上循环运行,在每个属性映射到列时循环遍历每个属性。这有点抽象,但我认为你可以填写其余部分。祝你好运!

于 2013-01-22T16:47:56.590 回答
1

您可以列出要包含在表中的列,然后对于每个用户,使用isset检查每列是否有值:

$columnNames = array('userID', 'email', 'name', 'stream', 'PROGRAMME');

foreach ($users as $user) {
    echo '<tr>';
    foreach ($columnNames as $columnName) {
        echo '<td>';
        if (isset($user[$columnName])) {
            echo htmlspecialchars($user[$columnName]);
        }
        echo '</td>';
    }
    echo '</tr>';
}
于 2013-01-22T16:52:50.597 回答
1

如果我没有弄错您的问题,通过这样做,您可以使用最大数组键创建新数组;

$data = array(
    array('userID' => 152, 'email' => 'xxxxx@googlemail.com', 'name' => 'Jay jay go go', 'stream' => 616),
    array('userID' => 133, 'email' => 'damxxxxian@indigo.com', 'name' => 'Damian T', 'stream' => 616),
    array('userID' => 154, 'email' => 'julie@indigo.com', 'name' => 'Julie1000 E', 'stream' => 615, 'PROGRAMME' => 'Designer'),
    array('userID' => 153, 'email' => 'jay@indigo.com', 'name' => 'James1000 G', 'stream' => 616, 'PROGRAMME' => 'Apple Develpepr'),
);
$max_len = null;
$max_arr = null;
// First we find max array to grab its keys
foreach ($data as $i => $a) {
    $len = count($a);
    if ($max_len === null || $len > $max_len) {
        $max_len = $len;
        $max_arr = $data[$i];
    }
}
$max_arr_keys = array_keys($max_arr);
$data_new = array();
foreach ($data as $i => $a) {
    // and using max array keys here
    foreach ($max_arr_keys as $k) {
        // key exists? get value, or set as NULL
        $data_new[$i][$k] = isset($a[$k]) ? $a[$k] : null;
    }
}
print_r($data_new);

输出应该是这样的;

Array ( [userID] => 152 [email] => xxxxx@googlemail.com [name] => Jay jay go go [stream] => 616 [PROGRAMME] => null )
Array ( [userID] => 133 [email] => damxxxxian@indigo.com [name] => Damian T [stream] => 616 [PROGRAMME] => null ) 
Array ( [userID] => 154 [email] => julie@indigo.com [name] => Julie1000 E [stream] => 615 [PROGRAMME] => Designer ) 
Array ( [userID] => 153 [email] => jay@indigo.com [name] => James1000 G [stream] => 616 [PROGRAMME] => Apple Develpepr ) 
于 2013-01-22T17:23:05.513 回答