php - PHP : sytax error unexpected 'require_once' on registration page

Question

我正在尝试从HTML表单创建一个注册页面，该表单可以验证到PHP页面(下面提供的代码)，但是，当我提交表单时，出现以下错误:

( ! ) Parse error: syntax error, unexpected 'require_once' (T_REQUIRE_ONCE) in path/user_create.php

这是将表单输入内容输入数据库的代码:

<?php
session_start();
require_once __DIR__.'config.php';


if(isset($_POST['submit'])){
$username=$_POST['username'];
$password=$_POST['password'];
$email=$_POST['email'];

$sql = "INSERT INTO users ( username, password, email) VALUES ( :username, :password, :email )";

$query = $dbh->prepare( $sql );
$query->execute( array( ':username'=>$username, ':password'=>$password, ':address'=>$address, ':email'=>$email ) );

$result = $query->execute( array( ':username'=>$username, ':password'=>$password, ':email'=>$email ) );

if ( $result ){
  echo "<p>Your Registration is complete</p>";
} else {
  echo "<p>There was a problem with registration, please try again.</p>";
}
}

?>

谁能告诉我如何停止此错误？不知道这是语法错误还是其他错误？

Answer 1

我能看到的唯一错误是缺少斜杠。根据手册:

... This directory name does not have a trailing slash unless it is the root directory.

因此，您需要:

require_once __DIR__.'/config.php';
                      ^ here