我有一個看起來像這樣的陣列：
Array
(
[0] => stdClass Object
(
[quiz_id] => 1033
[quiz_venue] => 6
[quiz_host] => 46
[quiz_golden_question] => 100
[quiz_golden_question_outcome] => 0
[quiz_running] => 1
[quiz_status] => 100
[quiz_trainee] => 0
)
[1] => stdClass Object
(
[quiz_id] => 985
[quiz_venue] => 57
[quiz_host] => 21
[quiz_golden_question] => 0
[quiz_golden_question_outcome] => 0
[quiz_running] => 1
[quiz_status] => 310
[quiz_trainee] => 0
)
我想遍歷每個陣列，并插入一個新值（quiz_venue_name），這就是我所擁有的；
$quizzes = $wpdb->get_results( $prepared );
foreach ($quizzes as $quiz => $item) {
$venuetitle = get_the_title($item->quiz_venue);
$quizzes['quiz_venue_name'] = $venuetitle;
}
return $quizzes;
然而，它所做的只是將新值作為新陣列添加到多維陣列的最后——而不是將它們添加到每個陣列中！
我覺得我在做一些明顯的錯誤，所以非常感謝任何幫助！
我需要的最終結果是；
Array
(
[0] => stdClass Object
(
[quiz_id] => 1033
[quiz_venue] => 6
[quiz_host] => 46
[quiz_golden_question] => 100
[quiz_golden_question_outcome] => 0
[quiz_running] => 1
[quiz_status] => 100
[quiz_trainee] => 0
[quiz_venue_name] => NEW VALUE
)
[1] => stdClass Object
(
[quiz_id] => 985
[quiz_venue] => 57
[quiz_host] => 21
[quiz_golden_question] => 0
[quiz_golden_question_outcome] => 0
[quiz_running] => 1
[quiz_status] => 310
[quiz_trainee] => 0
[quiz_venue_name] => NEW VALUE
)
uj5u.com熱心網友回復：
您的$quizzes變數是一個物件陣列（stdClass 的實體），因此您應該使用 it 屬性在每次迭代中設定值（$item->quiz_venue_name而不是$quizzes['quiz_venue_name']）：
...
foreach ($quizzes as $quiz => $item) {
$venuetitle = get_the_title($item->quiz_venue);
$item->quiz_venue_name = $venuetitle;
}
...
實際上，該$quizzes['quiz_venue_name']=...代碼將為陣列quiz_venue_name根中的索引設定一個值$quizzes。
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