[英]Inserting multiple values into a database, php , sql
我在嘗試將多個值同時插入表中的同一列時遇到問題,
此代碼顯示了一個表:表格Ex:
-----------------------------
Name | Last Name | Points |
-----------------------------
Test | 185 | |
-----------------------------
Test1 | 185 | |
-----------------------------
Test2 | 185 | |
-----------------------------
useradmin ca為每個用戶插入點,但是當我單擊summint將所有這些值插入數據庫時我發出消息(錯誤)PDO :: prepare()期望參數1為字符串,數組給定,另一個為Fatal錯誤:在非目標上調用成員函數execute()
任何想法為什么或如何修復?
<?php
require("coneccion.php");
if(!empty($_POST))
{
$query = "INSERT INTO points (sid, ais, spoints) values (1, 2, :spoints)";
$query = array(':spoints' => $_POST['spoints']);
try
{
$stmt = $db->prepare($query);
$stmt = $stmt->execute($query_params);
}
catch(PDOException $ex)
{
die("Error 1 " . $ex->getMessage());
}
$cid = $_SESSION['cid'];
header("Location: index.php?id=$cid");
die("Rendirecting to index.php?id=$cid");
}
else
{
$id = $_SESSION['cid'];
echo 'Course id: ' .$id ;
$sid = $_GET['id'];
$query = "SELECT DISTINCT s.studentid, s.fname, s.lname, a.assignmentpoints, s.courseid, a.courseid, a.duedate FROM students as s, assignments as a WHERE s.courseid = '$id' and s.courseid = a.courseid and a.assignmentid = '$sid' ";
try
{
$stmt = $db->prepare($query);
$stmt->execute();
}
catch(PDOException $ex)
{
die("Error 2" . $ex->getMessage());
}
$rowstudents = $stmt->fetchAll();
}
?>
<form action="index.php" method="post">
<table border=1>
<tr>
<th>Id</th>
<th>First Name</th>
<th>Last Name</th>
<th>Assignment Points</th>
<th>Student Points</th>
</tr>
<?php foreach($rowstudents as $row): ?>
<tr>
<th><?php echo '' . htmlentities($row['studentid'], ENT_QUOTES, 'UTF-8') . '';?></th>
<th><?php echo '' . htmlentities($row['fname'], ENT_QUOTES, 'UTF-8') . '';?></th>
<th><?php echo '' . htmlentities($row['lname'], ENT_QUOTES, 'UTF-8') . '';?></th>
<th><?php echo '' . htmlentities($row['assignmentpoints'], ENT_QUOTES, 'UTF-8') . '';?></th>
<th><input type="text" name="spoints" value=""></th>
</tr>
<?php endforeach; ?>
</table>
<input type="submit" value="Submit">
</form>
你在這里重新分配$query
:
$query = "INSERT INTO points (sid, ais, spoints) values (1, 2, :spoints)";
$query = array(':spoints' => $_POST['spoints']);
因此,在第二行之后, $query
變為一個包含一個元素的數組。
我想你打算這樣做:
$query = "INSERT INTO points (sid, ais, spoints) values (1, 2, :spoints)";
try
{
$stmt = $db->prepare($query);
$stmt->bindParam(':spoints', $_POST['spoints']);
$stmt->execute();
}
參考: http : //us3.php.net/pdo.prepared-statements
此外,要獲得多個點,請更改您的html元素:
<input type="text" name="spoints" value="">
至
<input type="text" name="spoints[]" value="">
注意帶有數組spoints[]
的名稱。 發布時, $_POST['spoints']
將是一個可以循環並添加記錄的數組。
$points = null;
$query = "INSERT INTO points (sid, ais, spoints) values (1, 2, :spoints)";
try
{
$stmt = $db->prepare($query);
$stmt->bindParam(':spoints', $points);
foreach($_POST['spoints'] as $value) {
$points = $value;
$stmt->execute();
}
}
catch(PDOException $ex)
{
die("Error 1 " . $ex->getMessage());
}
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