Question

我正在尝试从mysql切换到PDO而不是如何解决这个问题我得到致命错误：在C：\ wamp \ www \ Systems \ insert_process.php上调用未定义的方法PDO :: prepared（） 12看看是否有人可以给我一个样本或指出我正确的方向，所有教程都向我展示了如何插入数据，但没有提交表单。

<?php

$db_host = "localhost";
$db_username = "root";
$db_pass = "";
$db_name = "systems_requests";

$dbh = new PDO('mysql:host='.$db_host.';dbname='.$db_name,$db_username,$db_pass);
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING);

$add_member= $dbh->prepared("INSERT INTO requests(lanId, name, department, manager, request,  request_description, request_comments, status, comments, compUser, compDt) Values (?,?,?,?,?,?,?,?,?,?)");
$add_member->bindParam(1, $_POST["lanId"]);
$add_member->bindParam(2, $_POST["name"]);
$add_member->bindParam(3, $_POST["department"]);
$add_member->bindParam(4, $_POST["manager"]);
$add_member->bindParam(5, $_POST["request"]);
$add_member->bindParam(6, $_POST["request_description"]);
$add_member->bindParam(7, $_POST["request_comments"]);
$add_member->bindParam(8, $_POST["status"]);
$add_member->bindParam(9, $_POST["comments"]);
$add_member->bindParam(10, $_POST["compUser"]);
$add_member->bindParam(11, $_POST["compDt"]);



$dbh->close();

$email = $_POST["emailaddress"]; 

$to = "";
$subject = "Systems Request";
$headers = "From: "; 

$message = "LanID: " . $lanId . " 

" ."User Name: ".  $name ." 

". "Department: " . $department . " 

" ."Manager: ".  $manager . " 

". "User Request: " . $request . "

" ."User Request Description: ".  $request_description .  " 

" ."User Request comments: ".  $request_comments .  "

" ."Status: " .  $status .  " 
 
" ."Systems comments: ".  $comments .  " 
 
" ."Completed by: ".  $compUser ;

mail($to,$subject,$message,$headers); 


echo ("<br> <a href='http://a0319p528/dc399Homepage/'> DC399Homepage </a>");
?>
<html>
<body>
<br><br><br>

<h1 align="center">Systems Request Confirmation</h1>
<p align="center">Thank you, <?php echo $_POST["name"]; ?><br><br>
    Your request has been sent. Your request number is <?php echo $id;?><br>
    Please write this number down or print this page out.</p>

<div align="center">
    <h2>Request Information</h2>
    Date Request: <?php $date = new DateTime();
echo $date->format('m/d/Y H:i:s') . "\n";  ?><br>
    Manager: <?php echo $_POST["manager"]; ?><br>
    Location: <?php echo $_POST["department"];  ?><br>
    Request Issue: <?php echo $_POST["request"];  ?> <?php echo $_POST["request_description"];  ?><br>
    Request Comments: <?php echo $_POST["request_comments"];  ?><br>
</div>
<div align="center">
    <h2>Status Information</h2>
    Status: <?php echo $_POST["status"];  ?><br><br><br><br>
</div>
<div align="center"><button onClick="window.print()">Print this page</button></div>
</body>
</html>

Answer 1

您在原始问题下进行了编辑而未将其标记为编辑如果有人问为什么（答案），这是按your originally posted question。

prepare而非prepared这就是您收到致命错误的原因。

$add_member= $dbh->prepare("INSERT INTO requests ...

另外，你没有执行

添加：

$add_member->execute();

后

$add_member->bindParam(11, $_POST["compDt"]);

根据文档

<强> http://php.net/pdo.prepared-statements

<?php
$stmt = $dbh->prepare("INSERT INTO REGISTRY (name, value) VALUES (?, ?)");
$stmt->bindParam(1, $name);
$stmt->bindParam(2, $value);

// insert one row
$name = 'one';
$value = 1;
$stmt->execute(); // <=== right there

// insert another row with different values
$name = 'two';
$value = 2;
$stmt->execute();
?>

和

<?php
$stmt = $dbh->prepare("INSERT INTO REGISTRY (name, value) VALUES (:name, :value)");
$stmt->bindParam(':name', $name);
$stmt->bindParam(':value', $value);

// insert one row
$name = 'one';
$value = 1;
$stmt->execute();

// insert another row with different values
$name = 'two';
$value = 2;
$stmt->execute();
?>

修改并根据您的评论：

“我现在收到此错误警告：PDOStatement :: execute（）：SQLSTATE [HY093]：参数号无效：绑定变量数与C：\ wamp \ www \ Systems中的标记数不匹配\ insert_process.php在第25行“

你有11个绑定但只有10个值

(?,?,?,?,?,?,?,?,?,?)

添加一个。

(?,?,?,?,?,?,?,?,?,?,?)

Answer 2

正确的方法名称为prepare，因此请更改为：

$add_member= $dbh->prepare("INSERT INTO requests(lanId, name, department, manager, request,  request_description, request_comments, status, comments, compUser, compDt) Values (?,?,?,?,?,?,?,?,?,?)");

Answer 3

是的，您必须准备函数来构建SQL查询，一旦查询准备就绪或构建正确，它将执行并生成结果。

尝试使用PDO从表单插入数据

3 个答案: