注册php文件。_Php_Mysql_Registration

注册php文件。

php mysql

注册php文件。,php,mysql,registration,Php,Mysql,Registration,我一直在努力让这个注册php工作。我想我很接近了。但是有个问题。结果总是一个按钮，重定向到主页（当你阅读代码时，你就会知道我在说什么。）如果你能找到问题，请告诉我 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" i

我一直在努力让这个注册php工作。我想我很接近了。但是有个问题。结果总是一个按钮，重定向到主页（当你阅读代码时，你就会知道我在说什么。）如果你能找到问题，请告诉我

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" id="jmtoday" class=" no_js">
<head>
<link href='icon.jpg' rel='icon' type='image/jpg'/>
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<meta http-equiv="Content-language" content="en" />
<LINK REL=StyleSheet HREF="Mainstyles.css" TYPE="text/css"></link>
<Title>Sign up to JM Today</title>
</head>
<body>
<?php 
 $dbservertype='mysql';
 $servername='localhost';
 $dbusername='***';
 $dbpassword='***';
 $dbname='jmtdy';
 function connecttodb($servername,$dbname,$dbuser,$dbpassword)
 {
  global $link;
  $link=mysql_connect("$servername","$dbuser","$dbpassword");
  if(!$link){
   die("Could not connect to MySQL");
    }  
  mysql_select_db("$dbname",$link) or die ("could not open db".mysql_error());
}
connecttodb($servername,$dbname,$dbusername,$dbpassword);
?>


<?php

 $username=mysql_real_escape_string($_POST['username']);
 $password=mysql_real_escape_string($_POST['password']);
 $password2=mysql_real_escape_string($_POST['password_confirmation']);
 $todo=mysql_real_escape_string($_POST['todo']);
 $email=mysql_real_escape_string($_POST['email']);
 $fname=mysql_real_escape_string($_POST['fname']);
 $lname=mysql_real_escape_string($_POST['lname']);



if(isset($todo) and $todo=="post"){

 $status = "OK";
 $msg="";
 }

if(!isset($username) OR strlen($username) <3){
 $msg=$msg."Username should be equal to or more than 3 characters long<BR/>";
 $status= "NOTOK";
 }     

if(mysql_num_rows(mysql_query("SELECT username FROM users WHERE username = '$username'")or die (mysql_error ()))){
$msg=$msg."Username already exists. Please try another one<BR/>";
$status= "NOTOK";}     


if ( strlen($password) < 3 ){
 $msg=$msg."Password must be more than 3 charactors long<BR/>";
 $status= "NOTOK";
 }     

if ( $password <> $password2 ){
 $msg=$msg."Passwords are not identical.<BR/>";
 $status= "NOTOK";
 }     


if($status="NOTOK"){
 echo "$msg<br/><input type='button' value='Retry' onClick='history.go(-1)'>";
}
 else {
if(mysql_query("insert into users(username,password,email,fname,lname) values('$username','$password','$email','$fname','$lname')")or die (mysql_error ())){
 echo "Welcome, You have successfully signed up";
 }
else { 
echo "Database Problem, please contact Site admin";
}

}
?>
</body>
</html>


今天就注册JM
您在线路上缺少一个=
if($status="NOTOK"){

它会将“NOTOK”指定给$status，并且为布尔值true。
谢谢，这解决了问题！