插入數據

Question

我有三個字段

<textarea rows="2" name="answer[]" ></textarea> 
<select name="fraction[]">... 
<textarea rows="2" name="feedback[]"></textarea> 

用戶應該填補這個通過這個字段以至少四倍 然後我使用PHP循環字段超過一次將其插入數據庫

$answer = isset($_POST['answer']) ? $_POST['answer'] : "" ; 
$fraction = isset($_POST['fraction']) ? $_POST['fraction'] : "" ; 
$feedback = isset($_POST['feedback']) ? $_POST['feedback'] : "" ; 

foreach($answer as $key=>$value){ 
    $answer = $value; 
    $fraction = $fraction[$key]; 
    $feedback = $feedback[$key]; 
    $query = "insert into `question_answer` (answer, fraction, feedback) values ('$answer', '$fraction','$feedback')"; 
    $questions->insertData($query,$con); 
} 

記錄這個插入的數目，第一條記錄包含所有的值，因爲我想要的，但其他記錄只包含通過相關的陣列i循環的字段的值，另一個字段爲空..任何幫助？

Answer 1

您覆蓋在第一循環的變量...藉此：

$answer = isset($_POST['answer']) ? $_POST['answer'] : "" ; 
$fraction = isset($_POST['fraction']) ? $_POST['fraction'] : "" ; 
$feedback = isset($_POST['feedback']) ? $_POST['feedback'] : "" ; 

foreach($answer as $key=>$value){ 
    $query = "insert into `question_answer` (answer, fraction, feedback) values ('$value', '$fraction[$key]','$feedback[$key]')"; 
    $questions->insertData($query,$con); 
}