PHP输入mysql数据库

Question

我正在尝试将输入表单放入我的数据库中，但它不起作用。这是我的代码:

<?php

$host="localhost"; // Host name 
$username="removed"; // Mysql username 
$password="removed"; // Mysql password 
$db_name="removed"; // Database name 
$tbl_name="input"; // Table name 

// Connect to server and select database.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

// Get values from form 
$email=$_POST['email'];

// Insert data into mysql 
$sql="INSERT INTO $tbl_name(email) VALUES('$email')";
$result=mysql_query($sql);

// if successfully insert data into database, displays message "Successful". 
if($result){
echo "Successful";
echo "<BR>";
echo "<a href='insert.php'>Back to main page</a>";
}

else {
echo "ERROR";
}
?> 

<?php 
// close connection 
mysql_close();
?>

你好

<form class="form-signin" method="post" action="./php/email2db.php">
<input type="text" name="email" class="input-block-level" placeholder="Email address">
<button class="btn btn-primary" type="submit">Pass The Popcorn</button>
</form>

你能帮我弄到它，这样当他们把它放进数据库时吗？我想要它，但它不是，所以请帮忙。

Answer 1

我认为您的查询应如下所示:

<?php

$host="localhost"; // Host name 
$username="removed"; // Mysql username 
$password="removed"; // Mysql password 
$db_name="removed"; // Database name 
$tbl_name="input"; // Table name 

// Connect to server and select database.
mysql_connect($host, $username, $password)or die("cannot connect"); 
mysql_select_db($db_name)or die("cannot select DB");
//Removed the " from $db_name, $host, $username, $password

// Get values from form 
$email=$_POST['email'];

// Insert data into mysql 
$sql="INSERT INTO ".$tbl_name." (email) VALUES(".$email.")";
//Here you have to concatenate the query from multiple parts, this is important
//And you cant use "$tbl_name(email)"
$result=mysql_query($sql);

// if successfully insert data into database, displays message "Successful". 
if($result){
echo "Successful";
echo "<BR>";
echo "<a href='insert.php'>Back to main page</a>";
}

else {
echo "ERROR";
}
?> 

<?php 
// close connection 
mysql_close();
?>