我在phpmyadmin中创建了一个数据库。我正在尝试创建一个寄存器和登录,但我首先创建一个config.php文件,您可以在下面看到。我使用占位符而不是用户名和密码。然而,一旦加载网页,它只是说无法连接。
<?php
$conn = mysqli_connect("localhost", "username", "password");
if($conn){
die("could not connect" . mysqli_error($conn));
}
mysqli_close($conn);
?>
我不确定我是否已连接到我的数据库,因为我是php新手。我已经创建了一个注册表单,但是只要我在url的末尾键入register.php它就会显示无法连接。它没有显示我的任何表单,并且控制台中没有错误。下面是我目前为register.php提供的php。我只是试着在那一刻测试它,但是html部分根本没有显示,所以我不能输入一个名字来查看它是否正常工作。
<?php
require_once('config.php');
$username = $_POST ['username'];
?>
PHP位于html的head标签之前,用于register.php。有没有人对我的登记表格没有出现的原因有任何建议?
register.php
<?php
require_once('config.php');
$username = $_POST ['username'];
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<title>Trip Guider</title>
<!-- Bootstrap core CSS -->
<link href="vendor/bootstrap/css/bootstrap.min.css" rel="stylesheet">
<!-- Custom fonts for this template -->
<link href="vendor/font-awesome/css/font-awesome.min.css" rel="stylesheet" type="text/css">
<link href='https://fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800' rel='stylesheet' type='text/css'>
<link href='https://fonts.googleapis.com/css?family=Merriweather:400,300,300italic,400italic,700,700italic,900,900italic' rel='stylesheet' type='text/css'>
<!-- Plugin CSS -->
<link href="vendor/magnific-popup/magnific-popup.css" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="css/creative.min.css" rel="stylesheet">
<link href="css/style.css" rel="stylesheet">
</head>
<body id="page-top" >
<!-- Navigation -->
<nav class="navbar navbar-expand-lg navbar-light fixed-top" id="mainNav">
<div class="container">
<button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ml-auto">
<div class="dropdown" id="myDropdown">
<a class="btn dropdown-toggle" data-toggle="dropdown" href="#">
Menu
<span class="caret"></span>
</a>
<ul class="dropdown-menu">
<li><a href="#">Home</a></li>
<li><a href="gallery.html">View Holiday Gallery</a></li>
<li><a href="itinerary.html">View Itinerary</a></li>
<li><a href="settings.html">Settings</a></li>
</ul>
</div>
</ul>
</div>
</div>
</nav>
<div class="container">
<div class="card card-container">
<a href="index.html">
<img id="profile-img" class="profile-img-card" src="//ssl.gstatic.com/accounts/ui/avatar_2x.png" alt="logo" />
</a>
<p id="profile-name" class="profile-name-card"></p>
<form class="form-signin" action="" method="post">
<input type="text" id="inputEmail" class="form-control" placeholder="Username" required autofocus>
<span id="reauth-email" class="reauth-email"></span>
<input type="email" id="inputEmail" class="form-control" placeholder="Email address" required autofocus>
<input type="password" id="inputPassword" class="form-control" placeholder="Password" required>
<button class="btn btn-lg btn-primary btn-block btn-signin" type="submit">Register</button>
<button class="btn btn-lg btn-primary btn-block btn-signin" type="submit">Sign in</button>
</form><!-- /form -->
</div><!-- /card-container -->
</div><!-- /container -->
<script src="js/creative.min.js"></script>
<script src="js/jquery.js"></script>
</body>
</html>
答案 0 :(得分:1)
首先打开PHP错误报告。紧跟<?php
次叛徒后:
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
答案 1 :(得分:0)
问题来自连接脚本中的if语句; 你的'if'条件返回true而不是false,所以请改用它;
if(!$ conn){
}
答案 2 :(得分:0)
你在这里的陈述很糟糕:
if($conn){
die("could not connect" . mysqli_error($conn));
}
您必须检查是否没有连接(!$conn)
,因此正确的方法是:
if(!$conn){
die("could not connect" . mysqli_error($conn));
}
else{
//some code here
}
答案 3 :(得分:0)
试试这个: 在config.php中你没有包含数据库名称
<?php
$conn = mysqli_connect("localhost", "username", "password","dbname");
if(!$conn){
die("could not connect" . mysqli_error($conn));
}
mysqli_close($conn);
?>
将register.php更改为:
<?php
require('config.php');
$username = $_POST ['username'];
?>