Question

我有一个数组

$ ID =数组（0 =＆gt;＆＃34; 12＆＃34;，1 =＆gt;＆＃34; 14 = 2＆gt;＆＃34; 27＆＃34;，3 =＆gt;＆＃ 34; 987＆＃34;，4 =＆gt;＆＃34; 23＆＃34;）;

然后我有这个功能：

foreach ($doodads AS $doodad) {
    if ($page == 1) {
        $doodad['row'] = $X;
    } else {
        $doodad['row'] = count($all_ids) + $X;
    }

    $return[] = Doodads_Model_Ajax::formatCallbackDoodad($doodad);
}

如何将$X设置为数组$ ID（0,1,2,3或4）中当前索引的编号？

Answer 1

使用foreach获取键和值而不仅仅是值。

foreach($doodads as $key => $doodad) {
    echo 'Key: ', $key, "\n";
    print_r($doodad);
}

在你的情况下，$ key将是$ X;

foreach($doodads as $X => $doodad)

要在for循环中计数，请尝试此操作。

$x = 0;
foreach($doodads as $key => $doodad) {
    echo 'Key: ', $key, "\n";
    echo 'X: ', $x, "\n\n";
    ++$x; // Add one to x.
}

设置变量等于索引计数

1 个答案: