我设计了一个站点，当我在本地服务器上运行它时，它运行平稳，但是当我在实时托管服务器（000webhost）中对其进行测试时，该站点将成功注册用户，但是即使登录，也不会登录该用户信息是正确的。最近我的本地服务器中也出现了同样的问题。请帮助，因为它确实令人沮丧
这是login.php代码
<html>
<head>
<meta charset="UTF-8">
<title>Crypto-hash.com.com</title>
<link rel="stylesheet" href="styles/styles.min.css">
</head>
<body style="background-color: #f1eeeeef;">
<?php
require('db.php');
session_start();
$username=$_POST['username'];
$password=$_POST['password'];
// When form submitted, check and create user session.
if (isset($_POST['username'])) {
$username = stripslashes($_REQUEST['username']); // removes backslashes
$username = mysqli_real_escape_string($con, $username);
$password = stripslashes($_REQUEST['password']);
$password = mysqli_real_escape_string($con, $password);
// Check user is exist in the database
$query = "SELECT * FROM `user` WHERE username='$username'
AND password='" . md5($password) . "'";
$result = mysqli_query($con, $query) or die(mysql_error());
$rows = mysqli_num_rows($result);
if ($rows == 1) {
$_SESSION['username'] = $username;
// Redirect to user dashboard page
header("Location: dashboard.php");
} else {
echo "<div class='form'>
<h3>Incorrect Username/password.</h3><br/>
<p class='link'>Click here to <a href='login.php'>Login</a> again.</p>
</div>";
}
}
?>
<header>
<div class="topline">
<div class="wrapper">
<div class="logo">
<img src="images/sitelogo1.png" width="200px" alt="">
<!--<p><span>Autonomous platform that</span> <span>does the work for you</span></p>-->
</div>
<!--<div class="social">
<a href="#" class="fa fa-facebook"></a>
<a href="#" class="fa fa-twitter"></a>
<a href="#" class="fa fa-youtube"></a>
</div>-->
<div class="right">
<p id="topline_timer">00.____, 201_ __:--:--</p>
<a href="login.php">SIGN UP & SIGN IN</a>
</div>
</div>
</div>
<nav>
<ul class="wrapper">
<li><a href="-a=home.htm">HOME</a></li>
<li><a href="-a=cust-page=about.htm">ABOUT TRADING</a></li>
<li><a href="-a=cust-page=our_company.htm">OUR COMPANY</a></li>
<li><a href="-a=cust-page=how_to_invest.htm">HOW TO INVEST?</a></li>
<li><a href="-a=faq.htm">FAQ</a></li>
<li><a href="-a=news.htm">NEWS</a></li>
<li><a href="-a=support.htm">CONTACT</a></li>
</ul>
</nav>
</header>
<!--Start of Tawk.to Script-->
<script type="text/javascript">
var Tawk_API=Tawk_API||{}, Tawk_LoadStart=new Date();
(function(){
var s1=document.createElement("script"),s0=document.getElementsByTagName("script")[0];
s1.async=true;
s1.src='https://embed.tawk.to/5d4223f97d27204601c8a954/default';
s1.charset='UTF-8';
s1.setAttribute('crossorigin','*');
s0.parentNode.insertBefore(s1,s0);
})();
</script>
<!--End of Tawk.to Script-->
<div class="section hero fw">
<div class="wrapper">
<div class="content">
<!--
<a class="warranty" href="#">
<span>
<span class="l1">Warranty by certificate for all investments</span>
<span class="l2">$1,750,000.00</span>
<span class="l3">Full Business Validation</span>
</span>
</a>
<h2>Autonomous <span>Trading</span></h2>
<p>Our smart trading crypto-hash.net makes automated trading easier than ever before with unmatched diversification and dynamic logic swapping</p>
-->
</a>
<h2>Let's <span>Trade</span></h2>
<p>The best Crypto mining platform that designs with a hash function. with our special design alogrithm that transform all transaction with a flexible strategy so that investors are not presurized about making large investment.
</p>
<a href="registration.php" class="btn">register</a>
</div>
</div>
</div>
<div class="section">
<div class="wrapper">
<div class="login_page">
<script language=javascript>
function checkform() {
if (document.mainform.username.value=='') {
alert("Please type your username!");
document.mainform.username.focus();
return false;
}
if (document.mainform.password.value=='') {
alert("Please type your password!");
document.mainform.password.focus();
return false;
}
return true;
}
</script>
<h3>Login:</h3>
<br>
<form class="form" method="post" name="login" action="">
<input type=hidden name=a value='do_login'>
<input type=hidden name=follow value=''>
<input type=hidden name=follow_id value=''>
<table cellspacing=0 cellpadding=2 border=0>
<tr>
<td>Username:</td>
<td><input type=text name=username value='' class=inpts size=30 autofocus="autofocus"></td>
</tr><tr>
<td>Password:</td>
<td><input type=password name=password value='' class=inpts size=30></td>
</tr>
<tr>
<td> </td>
<td><input type=submit value="Login" class=sbmt></td>
</tr></table>
</form>
<br><br>
<p style="text-align: center;">or <a href="-a=forgot_password.htm">remember your login information</a>.</p>
</div>
</div>
</div>
</div>
<footer>
<div class="footer_1 wrapper">
<div class="line-1">
<img src="images/footer-pay-1.png" alt="">
<img src="images/footer-pay-2.png" alt="">
<img src="images/footer-pay-3.png" alt="">
<img src="images/footer-pay-4.png" alt="">
</div>
<div class="line-2">
<img src="images/footer-pay-5.png" alt="">
<img src="images/footer-pay-6.png" alt="">
<img src="images/footer-pay-7.png" alt="">
<img src="images/footer-pay-8.png" alt="">
<img src="images/footer-pay-9.png" alt="">
</div>
</div>
<div class="footer_2">
<div class="wrapper">
<div class="links">
<a href="?a=faq" class="btn">QUESTION & ANSWERS</a>
<a href="?a=rules" class="btn">TERMS & CONDITIONS</a>
</div>
</div>
</div>
<div class="footer_3">
<p><span>The Registered Office of the Company</span>78 Grafton St , Manchester M13 9LR, United Kingdom</p>
<p>© All Rights Reserved 2018-2019 crypto-hash.net</p>
</div>
</footer>
<!-- <script src="js/scripts.min.js"></script> -->
<script src="js/jquery-3.3.1.min.js"></script>
<script src="js/engine.js"></script>
<?php
}
?>
</body>
</html>
这是registration.php代码
<html>
<head>
<meta charset="utf-8"/>
<title>Registration</title>
<link rel="stylesheet" href="styles/styles.min.css">
</head>
<body style="background-color: #f1eeeeef;">
<?php
require('db.php');
// When form submitted, insert values into the database.
if (isset($_REQUEST['username'])) {
// removes backslashes
$username = stripslashes($_REQUEST['username']);
//escapes special characters in a string
$username = mysqli_real_escape_string($con, $username);
$address = stripslashes($_REQUEST['address']);
$address = mysqli_real_escape_string($con, $address);
$city = stripslashes($_REQUEST['city']);
$city = mysqli_real_escape_string($con, $city);
$state = stripslashes($_REQUEST['state']);
$state = mysqli_real_escape_string($con, $state);
$country = stripslashes($_REQUEST['country']);
$country = mysqli_real_escape_string($con, $country);
$nickname = stripslashes($_REQUEST['nickname']);
$nickname = mysqli_real_escape_string($con, $nickname);
$password = stripslashes($_REQUEST['password']);
$password = mysqli_real_escape_string($con, $password);
$bitcoinAddress = stripslashes($_REQUEST['bitcoinAddress']);
$bitcoinAddress = mysqli_real_escape_string($con, $bitcoinAddress);
$email = stripslashes($_REQUEST['email']);
$email = mysqli_real_escape_string($con, $email);
$sq = stripslashes($_REQUEST['sq']);
$sq = mysqli_real_escape_string($con, $sq);
$sa = stripslashes($_REQUEST['sa']);
$sa = mysqli_real_escape_string($con, $sa);
$create_datetime = date("Y-m-d H:i:s");
$query = "INSERT into `user` (username, address, city, state, country, nickname, password, bitcoinAddress, email, sq, sa, create_datetime)
VALUES ('$username', '$address', '$city', '$state', '$country', '$nickname', '" . md5($password) . "', '$bitcoinAddress', '$email', '$sq', '$sa', '$create_datetime')";
$result = mysqli_query($con, $query);
if ($result) {
echo "<div class='form'>
<h3>You are registered successfully.</h3><br/>
<p class='link'>Click here to <a href='login.php'>Login</a></p>
</div>";
} else {
echo "<div class='form'>
<h3>Required fields are missing.</h3><br/>
<p class='link'>Click here to <a href='registration.php'>registration</a> again.</p>
</div>";
}
} else {
?>
<header>
<div class="topline">
<div class="wrapper">
<div class="logo">
<img src="images/sitelogo1.png" width="200px" alt="">
<!--<p><span>Autonomous platform that</span> <span>does the work for you</span></p>-->
</div>
<!--<div class="social">
<a href="#" class="fa fa-facebook"></a>
<a href="#" class="fa fa-twitter"></a>
<a href="#" class="fa fa-youtube"></a>
</div>-->
<div class="right">
<p id="topline_timer">00.____, 201_ __:--:--</p>
<a href="login.php">SIGN UP & SIGN IN</a>
</div>
</div>
</div>
<nav>
<ul class="wrapper">
<li><a href="-a=home.htm">HOME</a></li>
<li><a href="-a=cust-page=about.htm">ABOUT TRADING</a></li>
<li><a href="-a=cust-page=our_company.htm">OUR COMPANY</a></li>
<li><a href="-a=cust-page=how_to_invest.htm">HOW TO INVEST?</a></li>
<li><a href="-a=faq.htm">FAQ</a></li>
<li><a href="-a=news.htm">NEWS</a></li>
<li><a href="-a=support.htm">CONTACT</a></li>
</ul>
</nav>
</header>
<!--Start of Tawk.to Script-->
<script type="text/javascript">
var Tawk_API=Tawk_API||{}, Tawk_LoadStart=new Date();
(function(){
var s1=document.createElement("script"),s0=document.getElementsByTagName("script")[0];
s1.async=true;
s1.src='https://embed.tawk.to/5d4223f97d27204601c8a954/default';
s1.charset='UTF-8';
s1.setAttribute('crossorigin','*');
s0.parentNode.insertBefore(s1,s0);
})();
</script>
<!--End of Tawk.to Script-->
<div class="section hero fw">
<div class="wrapper">
<div class="content">
<!--
<a class="warranty" href="#">
<span>
<span class="l1">Warranty by certificate for all investments</span>
<span class="l2">$1,750,000.00</span>
<span class="l3">Full Business Validation</span>
</span>
</a>
<h2>Autonomous <span>Trading</span></h2>
<p>Our smart trading crypto-hash.net makes automated trading easier than ever before with unmatched diversification and dynamic logic swapping</p>
-->
</a>
<h2>Let's <span>Trade</span></h2>
<p>The best Crypto mining platform that designs with a hash function. with our special design alogrithm that transform all transaction with a flexible strategy so that investors are not presurized about making large investment.
</p>
<a href="registration.php" class="btn">register</a>
</div>
</div>
</div>
<div class="section register">
<div class="wrapper">
<h1>Crypto-hash Account Registration</h1>
<img src="images/register_01.jpg" alt="">
<script language=javascript>
function checkform() {
if (document.regform.fullname.value == '') {
alert("Please enter your full name!");
document.regform.fullname.focus();
return false;
}
if (document.regform.username.value == '') {
alert("Please enter your username!");
document.regform.username.focus();
return false;
}
if (!document.regform.username.value.match(/^[A-Za-z0-9_\-]+$/)) {
alert("For username you should use English letters and digits only!");
document.regform.username.focus();
return false;
}
if (document.regform.password.value == '') {
alert("Please enter your password!");
document.regform.password.focus();
return false;
}
if (document.regform.password.value != document.regform.password2.value) {
alert("Please check your password!");
document.regform.password2.focus();
return false;
}
if (document.regform.email.value == '') {
alert("Please enter your e-mail address!");
document.regform.email.focus();
return false;
}
if (document.regform.email.value != document.regform.email1.value) {
alert("Please retupe your e-mail!");
document.regform.email.focus();
return false;
}
for (i in document.regform.elements) {
f = document.regform.elements[i];
if (f.name && f.name.match(/^pay_account/)) {
if (f.value == '') continue;
var notice = f.getAttribute('data-validate-notice');
var invalid = 0;
if (f.getAttribute('data-validate') == 'regexp') {
var re = new RegExp(f.getAttribute('data-validate-regexp'));
if (!f.value.match(re)) {
invalid = 1;
}
} //else if (f.getAttribute('data-validate') == 'email') {
//var re = bcgHTG787GHggvggRtgr7ghhs;
// if (!f.value.match(re)) {
// invalid = 1;
// }
// }
// if (invalid) {
// alert('Invalid account format. Expected '+notice);
// f.focus();
// return false;
if (document.regform.agree.checked == false) {
alert("You have to agree with the Terms and Conditions!");
return false;
}
return true;
}
function IsNumeric(sText) {
var ValidChars = "0123456789";
var IsNumber=true;
var Char;
if (sText == '') return false;
for (i = 0; i < sText.length && IsNumber == true; i++) {
Char = sText.charAt(i);
if (ValidChars.indexOf(Char) == -1) {
IsNumber = false;
}
}
return IsNumber;
}
</script>
<form action="" method="post">
<input type= hidden name= a value="signup">
<input type= hidden name= action value="signup">
<div class="regbox">
<div class="leftcol">
<table cellspacing= 0 cellpadding= 2 border=0>
<tr>
<td>Your Full Name:</td>
<td><input type= text name= username value='' class=inpts size=30></td>
</tr>
<tr>
<td>Your Address:</td>
<td><input type=text name=address value='' class=inpts size=30></td>
</tr>
<tr>
<td>Your City:</td>
<td><input type=text name=city value='' class=inpts size=30></td>
</tr>
<tr>
<td>Your State:</td>
<td><input type=text name=state value='' class=inpts size=30></td>
</tr>
<tr>
<td>Your Country:</td>
<td>
<select name=country class=inpts>
<option value="">--SELECT--</option>
<option >United States</option>
<option >Afghanistan</option>
<option >Albania</option>
<option >Algeria</option>
<option >American Samoa</option>
<option >Andorra</option>
<option >Angola</option>
<option >Anguilla</option>
<option >Antarctica</option>
<option >Antigua and Barbuda</option>
<option >Argentina</option>
<option >Armenia</option>
<option >Aruba</option>
<option >Australia</option>
<option >Austria</option>
<option >Azerbaidjan</option>
<option >Bahamas</option>
<option >Bahrain</option>
<option >Bangladesh</option>
<option >Barbados</option>
<option >Belarus</option>
<option >Belgium</option>
<option >Belize</option>
<option >Benin</option>
<option >Bermuda</option>
<option >Bhutan</option>
<option >Bolivia</option>
<option >Bosnia-Herzegovina</option>
<option >Botswana</option>
<option >Bouvet Island</option>
<option >Brazil</option>
<option >British Indian Ocean Territory</option>
<option >Brunei Darussalam</option>
<option >Bulgaria</option>
<option >Burkina Faso</option>
<option >Burundi</option>
<option >Cambodia</option>
<option >Cameroon</option>
<option >Canada</option>
<option >Cape Verde</option>
<option >Cayman Islands</option>
<option >Central African Republic</option>
<option >Chad</option>
<option >Chile</option>
<option >China</option>
<option >Christmas Island</option>
<option >Cocos (Keeling) Islands</option>
<option >Colombia</option>
<option >Comoros</option>
<option >Congo</option>
<option >Congo (Democratic Republic)</option>
<option >Cook Islands</option>
<option >Costa Rica</option>
<option >Croatia</option>
<option >Cuba</option>
<option >Cyprus</option>
<option >Czech Republic</option>
<option >Denmark</option>
<option >Djibouti</option>
<option >Dominica</option>
<option >Dominican Republic</option>
<option >East Timor</option>
<option >Ecuador</option>
<option >Egypt</option>
<option >El Salvador</option>
<option >Equatorial Guinea</option>
<option >Eritrea</option>
<option >Estonia</option>
<option >Ethiopia</option>
<option >Falkland Islands</option>
<option >Faroe Islands</option>
<option >Fiji</option>
<option >Finland</option>
<option >France</option>
<option >France (European Territory)</option>
<option >French Guiana</option>
<option >French Southern Territories</option>
<option >Gabon</option>
<option >Gambia</option>
<option >Georgia</option>
<option >Germany</option>
<option >Ghana</option>
<option >Gibraltar</option>
<option >Great Britain</option>
<option >Greece</option>
<option >Greenland</option>
<option >Grenada</option>
<option >Guadeloupe</option>
<option >Guam</option>
<option >Guatemala</option>
<option >Guinea</option>
<option >Guinea Bissau</option>
<option >Guyana</option>
<option >Haiti</option>
<option >Heard and McDonald Islands</option>
<option >Holy See (Vatican City State)</option>
<option >Honduras</option>
<option >Hong Kong</option>
<option >Hungary</option>
<option >Iceland</option>
<option >India</option>
<option >Indonesia</option>
<option >Iran</option>
<option >Iraq</option>
<option >Ireland</option>
<option >Israel</option>
<option >Italy</option>
<option >Ivory Coast (Cote D`Ivoire)</option>
<option >Jamaica</option>
<option >Japan</option>
<option >Jordan</option>
<option >Kazakhstan</option>
<option >Kenya</option>
<option >Kiribati</option>
<option >Kuwait</option>
<option >Kyrgyz Republic (Kyrgyzstan)</option>
<option >Laos</option>
<option >Latvia</option>
<option >Lebanon</option>
<option >Lesotho</option>
<option >Liberia</option>
<option >Libya</option>
<option >Liechtenstein</option>
<option >Lithuania</option>
<option >Luxembourg</option>
<option >Macau</option>
<option >Macedonia</option>
<option >Madagascar</option>
<option >Malawi</option>
<option >Malaysia</option>
<option >Maldives</option>
<option >Mali</option>
<option >Malta</option>
<option >Marshall Islands</option>
<option >Martinique</option>
<option >Mauritania</option>
<option >Mauritius</option>
<option >Mayotte</option>
<option >Mexico</option>
<option >Micronesia</option>
<option >Moldavia</option>
<option >Monaco</option>
<option >Mongolia</option>
<option >Montserrat</option>
<option >Morocco</option>
<option >Mozambique</option>
<option >Myanmar</option>
<option >Namibia</option>
<option >Nauru</option>
<option >Nepal</option>
<option >Netherlands</option>
<option >Netherlands Antilles</option>
<option >New Caledonia</option>
<option >New Zealand</option>
<option >Nicaragua</option>
<option >Niger</option>
<option >Nigeria</option>
<option >Niue</option>
<option >Norfolk Island</option>
<option >North Korea</option>
<option >Northern Mariana Islands</option>
<option >Norway</option>
<option >Oman</option>
<option >Pakistan</option>
<option >Palau</option>
<option >Panama</option>
<option >Papua New Guinea</option>
<option >Paraguay</option>
<option >Peru</option>
<option >Philippines</option>
<option >Pitcairn Island</option>
<option >Poland</option>
<option >Polynesia</option>
<option >Portugal</option>
<option >Puerto Rico</option>
<option >Qatar</option>
<option >Reunion</option>
<option >Romania</option>
<option >Russian Federation</option>
<option >Rwanda</option>
<option >S. Georgia & S. Sandwich Isls.</option>
<option >Saint Helena</option>
<option >Saint Kitts & Nevis Anguilla</option>
<option >Saint Lucia</option>
<option >Saint Pierre and Miquelon</option>
<option >Saint Vincent & Grenadines</option>
<option >Samoa</option>
<option >San Marino</option>
<option >Sao Tome and Principe</option>
<option >Saudi Arabia</option>
<option >Senegal</option>
<option >Seychelles</option>
<option >Sierra Leone</option>
<option >Singapore</option>
<option >Slovak Republic</option>
<option >Slovenia</option>
<option >Solomon Islands</option>
<option >Somalia</option>
<option >South Africa</option>
<option >South Korea</option>
<option >Spain</option>
<option >Sri Lanka</option>
<option >Sudan</option>
<option >Suriname</option>
<option >Svalbard and Jan Mayen Islands</option>
<option >Swaziland</option>
<option >Sweden</option>
<option >Switzerland</option>
<option >Syria</option>
<option >Taiwan</option>
<option >Tajikistan</option>
<option >Tanzania</option>
<option >Thailand</option>
<option >Togo</option>
<option >Tokelau</option>
<option >Tonga</option>
<option >Trinidad and Tobago</option>
<option >Tunisia</option>
<option >Turkey</option>
<option >Turkmenistan</option>
<option >Turks and Caicos Islands</option>
<option >Tuvalu</option>
<option >USA Minor Outlying Islands</option>
<option >Uganda</option>
<option >Ukraine</option>
<option >United Arab Emirates</option>
<option >United Kingdom</option>
<option >Uruguay</option>
<option >Uzbekistan</option>
<option >Vanuatu</option>
<option >Venezuela</option>
<option >Vietnam</option>
<option >Virgin Islands (British)</option>
<option >Virgin Islands (USA)</option>
<option >Wallis and Futuna Islands</option>
<option >Weather Stations</option>
<option >Western Sahara</option>
<option >Yemen</option>
<option >Yugoslavia</option>
<option >Zaire</option>
<option >Zambia</option>
<option >Zimbabwe</option>
</select>
</td>
</tr>
<tr>
<td>Your Username:</td>
<td><input type=text name=nickname value='' class=inpts size=30></td>
</tr>
<tr>
<td>Define Password:</td>
<td><input type=password name=password value='' class=inpts size=30></td>
</tr><tr>
<td>Retype Password:</td>
<td><input type=password name=password2 value='' class=inpts size=30></td>
</tr>
</table>
</div>
<div class="rightcol">
<table>
<tr>
<td>Your PerfectMoney Account:</td>
<td><input type=text class=inpts size=30 name=pay_account[18] value="" data-validate="regexp" data-validate-regexp="^U\d{5,}$" data-validate-notice="UXXXXXXX" placeholder="optional"></td>
</tr>
<tr>
<td>Your Bitcoin Account:</td>
<td><input type=text class=inpts size=30 name=bitcoinAddress value="" data-validate="regexp" data-validate-regexp="^[13][a-km-zA-HJ-NP-Z1-9]{25,34}$" data-validate-notice="Bitcoin Address" placeholder="Your Bitcoin Address" required></td>
</tr>
<tr>
<td>Your E-mail Address:</td>
<td><input type=text name=email value='' class=inpts size=30></td>
</tr>
<tr>
<td>Retype Your E-mail:</td>
<td><input type=text name=email1 value='' class=inpts size=30></td>
</tr>
<tr>
<td>Secret question:</td>
<td><input type=text name=sq value='' class=inpts size=30></td>
</tr>
<tr>
<td>Secret answer:</td>
<td><input type=text name=sa value='' class=inpts size=30></td>
</tr>
<tr>
<td>Registration Date:</td>
<td><input type=text name=create_datetime value='' class=inpts size=30></td>
</tr>
</table>
<p><input type=checkbox name=agree value=1 > I agree with <a href="-a=rules.htm">Terms and conditions</a></p>
<div style="text-align: center;">
<input type=submit value="Register" class=sbmt>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
<footer>
<div class="footer_1 wrapper">
<div class="line-1">
<img src="images/footer-pay-1.png" alt="">
<img src="images/footer-pay-2.png" alt="">
<img src="images/footer-pay-3.png" alt="">
<img src="images/footer-pay-4.png" alt="">
</div>
<div class="line-2">
<img src="images/footer-pay-5.png" alt="">
<img src="images/footer-pay-6.png" alt="">
<img src="images/footer-pay-7.png" alt="">
<img src="images/footer-pay-8.png" alt="">
<img src="images/footer-pay-9.png" alt="">
</div>
</div>
<div class="footer_2">
<div class="wrapper">
<div class="links">
<a href="?a=faq" class="btn">QUESTION & ANSWERS</a>
<a href="?a=rules" class="btn">TERMS & CONDITIONS</a>
</div>
</div>
</div>
<div class="footer_3">
<p><span>The Registered Office of the Company</span>78 Grafton St , Manchester M13 9LR, United Kingdom</p>
<p>© All Rights Reserved 2018-2019 crypto-hash.net</p>
</div>
</footer>
<!-- <script src="js/scripts.min.js"></script> -->
<script src="js/jquery-3.3.1.min.js"></script>
<script src="js/engine.js"></script>
<?php
}
?>
</body>
</html>