我有一个简单的html表单和一些将POST变量输入mysql数据库的php。但是，我注意到表单在
时不会输入数据 if (isset($_POST['submit'])){
insert stuff in here
}
包括在内。然后我删除了上面的if语句并运行代码。除了表格中使用POST（ex $ _POST ['var1']）之外，所有变量都被估算。似乎POST变量没有被识别，我不知道什么是错的。
所有代码：
<?php session_start(); ?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script type='text/javascript' src='http://code.jquery.com/jquery-1.7.1.min.js'></script>
<script type='text/javascript' src='http://twitter.github.com/bootstrap/1.4.0/bootstrap-modal.js'></script>
<link rel="stylesheet" href="../css/bootstrap.css" type="text/css" media="screen" />
<link rel="stylesheet" href="../css/basic.css" type="text/css" media="screen" />
</head>
<body>
<?php include '../css/bar.php'; ?>
<div id='content'>
<?php include '../nav.php';
?>
<?php
if (isset($_POST['submit'])){
include '../connect.php';
$question=mysql_real_escape_string($_POST['question']);
$detail=mysql_real_escape_string($_POST['detail']);
$date=date("d M Y");
$time=time();
$user=$_SESSION['id'];
$put=mysql_query("INSERT INTO questions VALUES ('','$question','$detail','$date','$time','$user','subject','0')");
$result=mysql_query("SELECT * FROM questions WHERE user='$user' AND time='$time'");
while ($row = mysql_fetch_assoc($result)){
$q=$row['id'];
}
}
?>
<form method='POST' action='question.php?q=<?php echo $q ?>'>
<p>Question:</p>
<p><input type='text' name='question' id='question' maxlength='200'></p>
<p>Add some detail (optional):</p>
<p><textarea id='detail' name='detail' ></textarea></p>
<p>Tags:</p>
<p><input type='submit' value='submit' name='submit'></p>
</form>
</div>
<?php include '../footer.php'; ?>
</body>
</html>
TESTPAGE：
<?php
include 'connect.php';
if (isset($_POST['submit'])){
$hhh=mysql_real_escape_string($_POST['hhh']);
$put=mysql_query("INSERT INTO questions VALUES ('','$hhh','','','','','','')");
}
?>
<form action='test.php' method='post'>
<input type='text' name='hhh'>
<input type='submit' name='submit' value='submit'>
</form>
答案 0 :(得分：2)
您有两个PHP页面 - ask.php和question.php。我（猜测）认为ask.php用于存储问题和其他详细信息，您想要打开带有问题ID的question.php。
ask.php
<?php session_start(); ?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script type='text/javascript' src='http://code.jquery.com/jquery-1.7.1.min.js'></script>
<script type='text/javascript' src='http://twitter.github.com/bootstrap/1.4.0/bootstrap-modal.js'></script>
<link rel="stylesheet" href="../css/bootstrap.css" type="text/css" media="screen" />
<link rel="stylesheet" href="../css/basic.css" type="text/css" media="screen" />
</head>
<body>
<?php include '../css/bar.php'; ?>
<div id='content'>
<?php
include '../nav.php';
/*--- If submit button is pressed ---- */
if (isset($_POST['submit']))
{
include '../connect.php';
$question=mysql_real_escape_string($_POST['question']);
$detail=mysql_real_escape_string($_POST['detail']);
$date=date("d M Y");
$time=time();
$user=$_SESSION['id'];
/* SELECT column names you want to use with INSERT statement */
$put=mysql_query("INSERT INTO questions
(`question`,`detail`,`date`,`time`,`user`,`subject`,`name_of_last_col` )
VALUES
('$question','$detail','$date','$time','$user','subject','0')");
//for debug purpose
if($put)
{
echo "Record added";
}
else
{
echo "Can't add record " . mysql_error();
}
}
/*----- End submit block -----------*/
/*----List the questions and select it----------*/
$time=time();
$user=$_SESSION['id'];
//I think this wont work. Try to remove time comparison from the SELECT statement.
$result=mysql_query("SELECT * FROM questions WHERE `user`='$user' AND `time`='$time'");
//$result=mysql_query("SELECT * FROM questions WHERE `user`='$user'");
if($result)
{
echo "<table>";
while($row = mysql_fetch_assoc($result))
{
echo "<tr>";
echo "<td>$row[question]</td>";
echo "<td><a href='question.php?qid=$row[id]'>Show a question</a></td>";
echo "</tr>";
}
echo "</table>";
}
else
{
echo "No questions!!!";
}
?>
<form method='POST' action="ask.php">
<p>Question:</p>
<p><input type='text' name='question' id='question' maxlength='200'></p>
<p>Add some detail (optional):</p>
<p><textarea id='detail' name='detail' ></textarea></p>
<p>Tags:</p>
<p><input type='submit' value='submit' name='submit'></p>
</form>
question.php应该是：
<?php
$qid=$_GET["qid"];
echo "$qid is selected...";
?>
您可以将代码分成两个PHP页面 - 一个用于保存记录，另一个用于列表和选择行。
addquestion.php
<?php
session_start();
if(isset($_POST['submit']))
{
mysql_connect("localhost","user","password") or die(mysql_error());
mysql_select_db("your_db_name") or die(mysql_error());
$question=mysql_real_escape_string($_POST['question']);
$detail=mysql_real_escape_string($_POST['detail']);
$date=date("d M Y");
$time=time();
$user=$_SESSION['id'];
$put=mysql_query("INSERT INTO questions
(`question`,`detail`,`date`,`time`,`user`,`subject`,`name_of_last_col` )
VALUES
('$question','$detail','$date','$time','$user','subject','0')");
//for debug purpose
if($put)
{
echo "Record added";
}
else
{
echo "Can't add record " . mysql_error();
}
}
?>
<form method='post' action="addquestion.php">
<p>Question:</p>
<p><input type='text' name='question' id='question' maxlength='200'></p>
<p>Add some detail (optional):</p>
<p><textarea id='detail' name='detail' ></textarea></p>
<p>Tags:</p>
<p><input type='submit' value='submit' name='submit'></p>
</form>
questionlist.php
<?php
session_start();
$user=$_SESSION['id'];
mysql_connect("localhost","user","password") or die(mysql_error());
mysql_select_db("your_db_name") or die(mysql_error());
$result=mysql_query("SELECT * FROM questions WHERE `user`='$user'");
if($result)
{
echo "<table>";
while($row = mysql_fetch_assoc($result))
{
echo "<tr>";
echo "<td>$row[question]</td>";
echo "<td><a href='question.php?qid=$row[id]'>Show a question</a></td>";
echo "</tr>";
}
echo "</table>";
}
else
{
echo "No questions!!!";
}
?>