Как убрать от сюда проверку пароля что бы вход был только по логину ?
<?php
session_start();
?>

<?php require_once("includes/connection.php"); ?>
<?php include("includes/header.php"); ?>

<?php

if(isset($_SESSION["session_username"])){
// echo "Session is set"; // for testing purposes
header("Location: intropage.php");
}

if(isset($_POST["login"])){

if(!empty($_POST['username']) && !empty($_POST['password'])) {
$username=$_POST['username'];
$password=$_POST['password'];

$query =mysql_query("SELECT * FROM usertbl WHERE username='".$username."' AND password='".$password."'");

$numrows=mysql_num_rows($query);
if($numrows!=0)

{
while($row=mysql_fetch_assoc($query))
{
$dbusername=$row['username'];
$dbpassword=$row['password'];
}

if($username == $dbusername && $password == $dbpassword)

{


$_SESSION['session_username']=$username;

/* Redirect browser */
header("Location: intropage.php");
}
} else {

$message = "Invalid username or password!";
}

} else {
$message = "All fields are required!";
}
}
?>




<div class="container mlogin">
<div id="login">
<h1>LOGIN</h1>
<form name="loginform" id="loginform" action="" method="POST">
<p>
<label for="user_login">Username<br />
<input type="text" name="username" id="username" class="input" value="" size="20" /></label>
</p>
<p>
<label for="user_pass">Password<br />
<input type="password" name="password" id="password" class="input" value="" size="20" /></label>
</p>
<p class="submit">
<input type="submit" name="login" class="button" value="Log In" />
</p>
<p class="regtext">No account yet? <a href="register.php" >Register Here</a>!</p>
</form>

</div>

</div>

<?php include("includes/footer.php"); ?>

<?php if (!empty($message)) {echo "<p class=\"error\">" . "MESSAGE: ". $message . "</p>";} ?>

319530415 , так тогда сможет любой пользователь зайти на любой аккаунт

Да это понятно у меня там другая задумка надо только прверку пароля убрать

319530415 , вот держи

<?php
session_start();
?>

<?php require_once("includes/connection.php"); ?>
<?php include("includes/header.php"); ?>

<?php

if(isset($_SESSION["session_username"])){
// echo "Session is set"; // for testing purposes
header("Location: intropage.php");
}

if(isset($_POST["login"])){

if(!empty($_POST['username'])) {
$username=$_POST['username'];

$query =mysql_query("SELECT * FROM usertbl WHERE username='".$username."'");

$numrows=mysql_num_rows($query);
if($numrows!=0)

{
while($row=mysql_fetch_assoc($query))
{
$dbusername=$row['username'];
}

if($username == $dbusername)

{


$_SESSION['session_username']=$username;

/* Redirect browser */
header("Location: intropage.php");
}
} else {

$message = "Invalid username!";
}

} else {
$message = "All fields are required!";
}
}
?>




<div class="container mlogin">
<div id="login">
<h1>LOGIN</h1>
<form name="loginform" id="loginform" action="" method="POST">
<p>
<label for="user_login">Username<br />
<input type="text" name="username" id="username" class="input" value="" size="20" /></label>
</p>
<p class="submit">
<input type="submit" name="login" class="button" value="Log In" />
</p>
<p class="regtext">No account yet? <a href="register.php" >Register Here</a>!</p>
</form>

</div>

</div>

<?php include("includes/footer.php"); ?>

<?php if (!empty($message)) {echo "<p class="error">" . "MESSAGE: ". $message . "</p>";} ?>

________
посл. ред. 08.11.2017 в 21:25; всего 1 раз(а); by MySqli

меня удивляет, кто такое блин вообще придумывает