[英]How do I loop through a 3 dimensional array to insert data into the database?
這是我的3維數組。
我的$ _POST數組。 這些是價值
$_POST = Array (
[9] => Array ( [student_id] => 9 [subject_id] => 6 [class_id] => 2 [mark_obtained] => 40 [mark_obtainable] => 100 )
[10] => Array ( [student_id] => 10 [subject_id] => 6 [class_id] => 2 [mark_obtained] => 52 [mark_obtainable] => 100 )
[11] => Array ( [student_id] => 11 [subject_id] => 6 [class_id] => 2 [mark_obtained] => 30 [mark_obtainable] => 100 )
[12] => Array ( [student_id] => 12 [subject_id] => 6 [class_id] => 2 [mark_obtained] => 68 [mark_obtainable] => 100 ) )
我如何遍歷它並將每個數組提交到數據庫?
我的列名是鍵。 “ student_id
, subject_id
, class_id
, mark_obtained
和mark_obtainable
”。
我正在嘗試這樣做,但我不斷收到重復的條目.` foreach($ _POST as $ i => $ values1){
foreach ($values1 as $key => $value) {
$columns = implode(", ",array_keys($values1));
$values = implode(", ", $values1);
$columns = $columns
$sql = "INSERT INTO `daily_report`($columns) VALUES ($values)";
if ($conn->multi_query($sql) === TRUE) {
echo "New records created successfully <br>";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
}
您必須像這樣在foreach循環中回顯sql變量。
foreach ($_POST as $data => $values) {
echo $sql = "INSERT INTO `daily_report` (student_id, subject_id, class_id,mark_obtained,mark_obtainable,daily_report.date)
VALUES (".$values['student_id'].", ".$values['subject_id'].", ".$values['class_id'].", ".$values['mark_obtained'].",".$values['mark_obtainable'].", now())";
// echo $sqlupdate1 = "UPDATE table SET commodity_quantity=$qty WHERE user='".$rows['user']."' ";
if ($conn->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
在回顯時連接變量。
您不需要3維數組。 您可以使用二維數組,並且通過使用foreach
可以將它們一一插入。 這是一個例子:
$data_array = [
[
'student_id' => 9,
'subject_id' => 6,
'class_id' => 2,
'mark_obtained' => 40,
'mark_obtainable' => 100
],
[
'student_id' => 10,
'subject_id' => 6,
'class_id' => 2,
'mark_obtained' => 52,
'mark_obtainable' => 100
],
[
'student_id' => 11,
'subject_id' => 6,
'class_id' => 2,
'mark_obtained' => 30,
'mark_obtainable' => 100
],
[
'student_id' => 12,
'subject_id' => 6,
'class_id' => 2,
'mark_obtained' => 30,
'mark_obtainable' => 100
],
];
foreach($data_array as $data) {
$sql = "INSERT INTO `daily_report` (student_id, subject_id, class_id,mark_obtained,mark_obtainable)
VALUES ($data['student_id'], $data['subject_id'], $data['class_id'], $data['mark_obtained'],$data['mark_obtainable'])";
if ($conn->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
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