我刚刚启动PHP，我想知道如何修复此解析错误。 这是错误：[关闭]
问题描述：
Parse error: parse error in C:\wamp\www\Discussion Forums\login.php on line 70
Here is my code. By the way, I'm making a login page which has functions config (for database connectivity), header and footer page , and I use WampServer and Dreamweaver.
<?php
session_start();
require("config.php");
require("functions.php");
$db = mysql_connect($dbhost, $dbuser, $dbpassword);
mysql_select_db($dbdatabase, $db);
$db = mysql_connect($dbhost, $dbuser, $dbpassword);
mysql_select_db($dbdatabase, $db);
if($_POST['submit'])
{
$sql = "SELECT * FROM users WHERE username = '"
. $_POST['username'] . "' AND password = '"
. $_POST['password'] . "';";
$result = mysql_query($sql);
$numrows = mysql_num_rows($result);
$result = mysql_query($sql);
$numrows = mysql_num_rows($result);
if($numrows == 1)
{
$row = mysql_fetch_assoc($result);
if($row['active'] == 1)
{
session_register("USERNAME");
session_register("USERID");
switch($_GET['ref'])
{
case "newpost":
if(isset($_GET['id']) == FALSE)
{
header("Location: " . $config_basedir .
"/newtopic.php");
}
else
{
header("Location: " . $config_basedir .
"/newtopic.php?id=" . $_GET['id']);
}
break;
case "reply":
if(isset($_GET['id']) == FALSE)
{
header("Location: " . $config_basedir .
"/newtopic.php");
}
else
{
header("Location: " . $config_basedir .
"/newtopic.php?id=" . $_GET['id']);
}
break;
default:
header("Location: " . $config_basedir);
break;
}
}
else {
require("header.php");
echo "This account is not verified yet. You were emailed a link
to verify the account. Please click on the link in the email to
continue.";
}
echo "This account is not verified yet. You were emailed a link
to verify the account. Please click on the link in the email to
continue.";
}
}
else {
header("Location: " . $config_basedir . "/login.php?error=1");
}
else {
require("header.php");
if($_GET['error']) {
echo "Incorrect login, please try again!";
}
}
?>
<form action="<?php echo pf_script_with_get($SCRIPT_NAME); ?>"
method="post">
<table>
<tr>
<td>Username</td>
<td><input type="text" name="username"></td>
</tr>
<tr>
<td>Password</td>
<td><input type="password" name="password"></td>
</tr>
<tr>
<td></td>
<td><input type="submit" name="submit" value="Login!"></td>
</tr>
</table>
</form>
Don't have an account? Go and <a href="register.php">Register</a>!
<?php
}
require("footer.php");
?>
答
On line number 67 use else if($somecondition) instead because in if-elseif-else can have only one else block. Also there is errors in your logic I am putting the new code it may help you.
<?php
session_start();
require("config.php");
require("functions.php");
$db = mysql_connect($dbhost, $dbuser, $dbpassword);
mysql_select_db($dbdatabase, $db);
$db = mysql_connect($dbhost, $dbuser, $dbpassword);
mysql_select_db($dbdatabase, $db);
if($_POST['submit'])
{
$sql = "SELECT * FROM users WHERE username = '"
. $_POST['username'] . "' AND password = '"
. $_POST['password'] . "';";
$result = mysql_query($sql);
$numrows = mysql_num_rows($result);
$result = mysql_query($sql);
$numrows = mysql_num_rows($result);
if($numrows == 1)
{
$row = mysql_fetch_assoc($result);
if($row['active'] == 1)
{
session_register("USERNAME");
session_register("USERID");
switch($_GET['ref'])
{
case "newpost":
if(isset($_GET['id']) == FALSE)
{
header("Location: " . $config_basedir .
"/newtopic.php");exit;
}
else
{
header("Location: " . $config_basedir .
"/newtopic.php?id=" . $_GET['id']);exit;
}
break;
case "reply":
if(isset($_GET['id']) == FALSE)
{
header("Location: " . $config_basedir .
"/newtopic.php");exit;
}
else
{
header("Location: " . $config_basedir .
"/newtopic.php?id=" . $_GET['id']);exit;
}
break;
default:
header("Location: " . $config_basedir);
break;
}
}
else {
//require("header.php");
$msg = base64_encode("This account is not verified yet. You were emailed a link
to verify the account. Please click on the link in the email to
continue.");
header("Location: " . $config_basedir . "/login.php?msg=".$msg);exit;
}
$msg = base64_encode("This account is not verified yet. You were emailed a link
to verify the account. Please click on the link in the email to
continue.");
header("Location: " . $config_basedir . "/login.php?msg=".$msg);exit;
}else{
$msg = base64_encode("You have incorrect username or password");
header("Location: " . $config_basedir . "/login.php?msg=".$msg);exit;
}
}
require("header.php");
if($_GET['msg']) {
echo base64_decod($msg);
}
?>
<form action="<?php echo pf_script_with_get($SCRIPT_NAME); ?>"
method="post">
<table>
<tr>
<td>Username</td>
<td><input type="text" name="username"></td>
</tr>
<tr>
<td>Password</td>
<td><input type="password" name="password"></td>
</tr>
<tr>
<td></td>
<td><input type="submit" name="submit" value="Login!"></td>
</tr>
</table>
</form>
Don't have an account? Go and <a href="register.php">Register</a>!
<?php
require("footer.php");
?>
答
Here is your problem:
else {
header("Location: " . $config_basedir . "/login.php?error=1");
}
else {
You have two consecutive else's. You should revise your code.
答
The else before require("header.php"); line does not have matching if. That is, opening and closing curly brackets do not match.
Keeping code indented helps to avoid such errors.