PHP表单插入到不插入记录

Question

我正在处理一项Uni任务，在使用表单将记录插入到MySQL数据库时遇到了问题。我的设置如下。我可以毫无问题地查看数据库中的条目。我是个新手，先说声抱歉：

conninfo.php

<?php
$strServer="localhost";   
$strDatabase="djdatabase";   // CHANGE TO YOUR DATABASE NAME HERE
$strUser="root";    
$strPwd="";    // Leave blank for WAMPServer

$strDB=mysql_connect($strServer,$strUser,$strPwd)or die("Could not open database");
$database=mysql_select_db("$strDatabase",$strDB);

?>

addnewdata.php

<?php include "conninfo.php";
$newdj=$_POST["dj"];  //pick up from form
$newfn=$_POST["fn"];
$newem=$_POST["em"];
$newwe=$_POST["we"];
$newpi=$_POST["pi"];
$newev=$_POST["ev"];


$query = "INSERT INTO dj(DJName, FirstName, Email, Website, Picture,    EventNumber)VALUES('$newdj', '$newfn', '$newem', '$newwe', '$newpi', '$newev)";

mysql_query($query);


header("location:showall.php");
?>

enternewdata.php

<?php include "conninfo.php";?>
<html>
<head>


</head>
<body>

<form action="addnewdata.php" method="post">

DJ Name:<input type="text" name="dj"><br>
FirstName: <input type="text" name="fn" /><br>
Email: <input type="text" name="em" /><br>
Website: <input type="text" name="we" /><br>
Picture: <input type="text" name="pi" /><br>
EventID: <input type="text" name="ev" /><br>
<br><br>

<button type="submit">Submit</button>
</form>

</body>
</html>

非常感谢您的帮助:)

Answer 1

最好使用SET命令来插入数据

$query = "INSERT INTO dj SET
            DJName=".$newdj.",
            FirstName=".$newfn.",
            Email=".$newem.",
            Website=".$newwe.",
            Picture=".$newpi.",
            EventNumber=".$newev."";
$save = mysql_query($query);
if($save){
    header("location:showall.php");
}else{
    die(mysql_error());
}

Answer 2

您缺少一个报价'，该are会导致由于您未执行任何调试而无法看到的错误。不管怎样，你应该改成这样

'$newwe', '$newpi', '$newev')"; //a quote was missing after '$newv

我建议您也可以通过添加or die('INVALID QUERY: ' . mysql_error());来调试查询，这样代码看起来就像

mysql_query($query) or die('INVALID QUERY: ' . mysql_error());

既然你说这是一个大学考试，我不知道你是否应该使用mysql_*函数(已经被弃用)，但我强烈建议你出于安全原因切换到mysqli或PDO。

Answer 3

您在$newev上的查询中遗漏了'，这会给出一个错误

$query = "INSERT INTO dj(DJName, FirstName, Email, Website, Picture,    EventNumber)VALUES('$newdj', '$newfn', '$newem', '$newwe', '$newpi', '$newev)";