[[SOLVED] $_POST Not working?]

Strange... try this:

<?php
error_reporting(E_ALL);
$user = $_POST['user'];
echo "Username: $user";
?>

 

and see if you get any error messages.

[Quick PHP Question]

index.php

 

<?php
session_start();
error_reporting(E_ALL ^ E_NOTICE);
$host="localhost"; // Host name 
$username="=P"; // Mysql username 
$password="=P"; // Mysql password 
$db_name="=P"; // Database name 
$tbl_name="posts"; // Table name 

// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

$sql="SELECT * FROM $tbl_name ORDER BY id DESC";
// OREDER BY id DESC is order result by descending 
$result=mysql_query($sql);
?>
<center>
<?php
$tbl_name2="members";
$myusername=$_SESSION['myusername'];
$mydn="SELECT displayname FROM $tbl_name2 WHERE username = '$myusername'";
$mydisplayname=mysql_query($mydn);
if (mysql_num_rows($mydisplayname)>0) {
   while ($row = mysql_fetch_assoc($mydisplayname)) {
      extract($row);
      if(isset($_SESSION['myusername'])){
      
         echo "Welcome , $displayname | <a href='logout.php'>Logout</a>";
      }
      else
      {
         echo "<a href='login.php'>Login</a> | <a href='register.php'>Register</a>";
      }
   }
}
else {
   echo "You have encountered an error.";
}
?>
</center>
<br /><br />
<table width="90%" border="0" align="center" cellpadding="3" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<td width="40%" align="center" bgcolor="#CCDDCC"><strong>Topic</strong></td>
<td width="20%" align="center" bgcolor="#CCDDCC"><strong>Author</strong></td>
<td width="15%" align="center" bgcolor="#CCDDCC"><strong>Views</strong></td>
<td width="13%" align="center" bgcolor="#CCDDCC"><strong>Replies</strong></td>
<td width="13%" align="center" bgcolor="#CCDDCC"><strong>Date/Time</strong></td>
</tr>

<?php
while($rows=mysql_fetch_array($result)){ // Start looping table row 
?>
<tr>
<td bgcolor="#FFFFFF"><a href="view_topic.php?id=<? echo $rows['id']; ?>"><? echo $rows['title']; ?></a><BR></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['author']; ?></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['views']; ?></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['posts']; ?></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['datetime']; ?></td>
</tr>

<?php
// Exit looping and close connection 
}
mysql_close();
?>
<tr>
<td colspan="5" align="right" bgcolor="#CCDDCC">
<? 
if(isset($_SESSION['myusername'])){
echo "<a href='create_topic.php'><strong>Create New Topic</strong> </a>";
}
else
{
echo "<a href='login.php'>Login</a> to start topics!";
}
?>
</tr>
</table>

 

This should work. But I see that you didn't put any kind of security measures in your code. Read this after you get your code to work.

[[SOLVED] $_POST Not working?]

What exactly is the output? Does it at least echo "Username:"?

[Quick PHP Question]

Is mydisplayname a field name in your database?

[[SOLVED] User Auth Question]

Sessions. Read more about them here

[[SOLVED] $_POST Not working?]

Script.php

<?php
$user = $_POST['user'];
echo "Username: $user";
?>

 

Don't put a space between $_POST and ['user'].

[Quick PHP Question]

Fixed some spelling errors, and changed a few things.

 

index.php

<?php
session_start();
error_reporting(E_ALL ^ E_NOTICE);
$host="localhost"; // Host name 
$username="=P"; // Mysql username 
$password="=P"; // Mysql password 
$db_name="=P"; // Database name 
$tbl_name="posts"; // Table name 

// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

$sql="SELECT * FROM $tbl_name ORDER BY id DESC";
// OREDER BY id DESC is order result by descending 
$result=mysql_query($sql);
?>
<center>
<?php
$tbl_name2="members";
$myusername=$_SESSION['myusername'];
$mydn="SELECT displayname FROM $tbl_name2 WHERE username = '$myusername'";
$mydisplayname=mysql_query($mydn);
if (mysql_num_rows($mydisplayname)>0) {
   while ($row = mysql_fetch_assoc($mydisplayname)) {
      extract($row);
      if(isset($_SESSION['myusername'])){
         echo "Welcome , $myusername | <a href='logout.php'>Logout</a>";
      }
      else
      {
         echo "<a href='login.php'>Login</a> | <a href='register.php'>Register</a>";
      }
   }
}
else {
   echo "You have encountered an error.";
}
?>
</center>
<br /><br />
<table width="90%" border="0" align="center" cellpadding="3" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<td width="40%" align="center" bgcolor="#CCDDCC"><strong>Topic</strong></td>
<td width="20%" align="center" bgcolor="#CCDDCC"><strong>Author</strong></td>
<td width="15%" align="center" bgcolor="#CCDDCC"><strong>Views</strong></td>
<td width="13%" align="center" bgcolor="#CCDDCC"><strong>Replies</strong></td>
<td width="13%" align="center" bgcolor="#CCDDCC"><strong>Date/Time</strong></td>
</tr>

<?php
while($rows=mysql_fetch_array($result)){ // Start looping table row 
?>
<tr>
<td bgcolor="#FFFFFF"><a href="view_topic.php?id=<? echo $rows['id']; ?>"><? echo $rows['title']; ?></a><BR></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['author']; ?></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['views']; ?></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['posts']; ?></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['datetime']; ?></td>
</tr>

<?php
// Exit looping and close connection 
}
mysql_close();
?>
<tr>
<td colspan="5" align="right" bgcolor="#CCDDCC">
<? 
if(isset($_SESSION['myusername'])){
echo "<a href='create_topic.php'><strong>Create New Topic</strong> </a>";
}
else
{
echo "<a href='login.php'>Login</a> to start topics!";
}
?>
</tr>
</table>

[check if a certain string is in a page ..]

It means to replace that with the string you are looking for.

[Quick PHP Question]

checklogin.php

<?php
session_start();
$host="localhost"; // Host name 
$username="=P"; // Mysql username 
$password="=P"; // Mysql password 
$db_name="=P"; // Database name 
$tbl_name="members"; // Table name 

// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

// username and password sent from signup form 
$myusername=$_POST['myusername']; 
$mypassword=$_POST['mypassword']; 

$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);

// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row

if($count==1){
// Register $myusername, $mypassword and redirect to file "login_success.php"
$_SESSION['myusername'] = $_POST['myusername'];
header("location:index.php");

}
else {
echo "Wrong Username or Password";
}

?>

[Trying to squeeze out the bugs ... PoliCosmos.com]

I don't believe you are really protected from MySQL Injections. Read this article.

[check if a certain string is in a page ..]

$_GET will work.

[Quick PHP Question]

I forgot to replace session_is_registered. Durf!

 

<?php
session_start();
error_reporting(E_ALL ^ E_NOTICE);
$host="localhost"; // Host name 
$username="=P"; // Mysql username 
$password="=P"; // Mysql password 
$db_name="=P"; // Database name 
$tbl_name="posts"; // Table name 

// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

$sql="SELECT * FROM $tbl_name ORDER BY id DESC";
// OREDER BY id DESC is order result by descending 
$result=mysql_query($sql);
?>
<center>
<?php
$tbl_name2="members";
$myusername=$_SESSION['myusername'];
$mydn="SELECT displayname FROM $tbl_name2 WHERE username = '$myusername'";
$mydisplayname=mysql_query($mydn);
if (mysql_num_rows($mydisplayname)>0) {
   while ($row = mysql_fetch_assoc($mydisplayname)) {
      extract($row);
      if(isset($_SESSION['myusername'])){
         echo "Welcome ".$mydisplayname." | <a href='logout.php'>Logout</a>";
      }
      else
      {
         echo "<a href='login.php'>Login</a> | <a href='register.php'>Register</a>";
      }
   }
}
else {
   echo "You have encountered an error.";
}
?>
</center>
<br /><br />
<table width="90%" border="0" align="center" cellpadding="3" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<td width="40%" align="center" bgcolor="#CCDDCC"><strong>Topic</strong></td>
<td width="20%" align="center" bgcolor="#CCDDCC"><strong>Author</strong></td>
<td width="15%" align="center" bgcolor="#CCDDCC"><strong>Views</strong></td>
<td width="13%" align="center" bgcolor="#CCDDCC"><strong>Replies</strong></td>
<td width="13%" align="center" bgcolor="#CCDDCC"><strong>Date/Time</strong></td>
</tr>

<?php
while($rows=mysql_fetch_array($result)){ // Start looping table row 
?>
<tr>
<td bgcolor="#FFFFFF"><a href="view_topic.php?id=<? echo $rows['id']; ?>"><? echo $rows['title']; ?></a><BR></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['author']; ?></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['views']; ?></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['posts']; ?></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['datetime']; ?></td>
</tr>

<?php
// Exit looping and close connection 
}
mysql_close();
?>
<tr>
<td colspan="5" align="right" bgcolor="#CCDDCC">
<? 
if(isset($_SESSION['mysuername'])){
echo "<a href='create_topic.php'><strong>Create New Topic</strong> </a>";
}
else
{
echo "<a href='login.php'>Login</a> to start topics!";
}
?>
</tr>
</table>

[check if a certain string is in a page ..]

What job? Please elaborate, and post some code if necessary.

[making a query more simple ?]

Maybe you should put an index or a key in one of the fields...

[Quick PHP Question]

Put this in index.php and tell us what it outputs (I've put some error_messages in there just to get an idea where the code is going haywire).

 

<?php
session_start();
error_reporting(E_ALL);
$host="localhost"; // Host name 
$username="=P"; // Mysql username 
$password="=P"; // Mysql password 
$db_name="=P"; // Database name 
$tbl_name="posts"; // Table name 

// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

$sql="SELECT * FROM $tbl_name ORDER BY id DESC";
// OREDER BY id DESC is order result by descending 
$result=mysql_query($sql);
?>
<center>
<?php
$tbl_name2="members";
$myusername=$_SESSION['myusername'];
$mydn="SELECT displayname FROM $tbl_name2 WHERE username = '$myusername'";
$mydisplayname=mysql_query($mydn);
if (mysql_num_rows($mydisplayname)>0) {
   while ($row = mysql_fetch_assoc($mydisplayname)) {
      extract($row);
      if(session_is_registered(myusername)){
         echo "Welcome ".$mydisplayname." | <a href='logout.php'>Logout</a>";
      }
      else
      {
         echo "<a href='login.php'>Login</a> | <a href='register.php'>Register</a>";
      }
   }
}
else {
   echo "You have encountered an error.";
}
?>
</center>
<br /><br />
<table width="90%" border="0" align="center" cellpadding="3" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<td width="40%" align="center" bgcolor="#CCDDCC"><strong>Topic</strong></td>
<td width="20%" align="center" bgcolor="#CCDDCC"><strong>Author</strong></td>
<td width="15%" align="center" bgcolor="#CCDDCC"><strong>Views</strong></td>
<td width="13%" align="center" bgcolor="#CCDDCC"><strong>Replies</strong></td>
<td width="13%" align="center" bgcolor="#CCDDCC"><strong>Date/Time</strong></td>
</tr>

<?php
while($rows=mysql_fetch_array($result)){ // Start looping table row 
?>
<tr>
<td bgcolor="#FFFFFF"><a href="view_topic.php?id=<? echo $rows['id']; ?>"><? echo $rows['title']; ?></a><BR></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['author']; ?></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['views']; ?></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['posts']; ?></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['datetime']; ?></td>
</tr>

<?php
// Exit looping and close connection 
}
mysql_close();
?>
<tr>
<td colspan="5" align="right" bgcolor="#CCDDCC">
<? 
if(isset($_SESSION['mysuername'])){
echo "<a href='create_topic.php'><strong>Create New Topic</strong> </a>";
}
else
{
echo "<a href='login.php'>Login</a> to start topics!";
}
?>
</tr>
</table>

[Can this be done with tables?]

Some people are just way too lazy to convert their websites from HTML tables to CSS.  I'm in the process of making one myself.

[Creating a webpage form?]

You've posted this in the wrong section. Just upload it to your webhost (assuming that you have one).

 

PS: You do realize that you're code will not work, right?

[[SOLVED] check if it is certain user and allow to go to page]

You should make a login page, and use sessions to validate the user (which I think you're doing).

[Quick PHP Question]

On that line, try:

echo "Welcome $mydisplayname | <a href='logout.php'>Logout</a>";

[[SOLVED] check if it is certain user and allow to go to page]

Please elaborate on your question. I don't quite get what you're asking. If you want an admin to log in first, use sessions.

[Quick PHP Question]

Like I said, don't use session_register. I rigged up a quick (hopefully working) solution for you. Also, NEVER put a password in a session.

 

checklogin.php

<?php
$host="localhost"; // Host name 
$username="=P"; // Mysql username 
$password="=P"; // Mysql password 
$db_name="=P"; // Database name 
$tbl_name="members"; // Table name 

// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

// username and password sent from signup form 
$myusername=$_POST['myusername']; 
$mypassword=$_POST['mypassword']; 

$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);

// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row

if($count==1){
// Register $myusername, $mypassword and redirect to file "login_success.php"
$_SESSION['myusername'] = $_POST['myusername'];
header("location:index.php");

}
else {
echo "Wrong Username or Password";
}

?>

 

index.php

<?php
session_start();
$host="localhost"; // Host name 
$username="=P"; // Mysql username 
$password="=P"; // Mysql password 
$db_name="=P"; // Database name 
$tbl_name="posts"; // Table name 

// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

$sql="SELECT * FROM $tbl_name ORDER BY id DESC";
// OREDER BY id DESC is order result by descending 
$result=mysql_query($sql);
?>
<center>
<?php
$tbl_name2="members";
$myusername=$_SESSION['myusername'];
$mydn="SELECT displayname FROM $tbl_name2 WHERE username = '$myusername'";
$mydisplayname=mysql_query($mydn);
if (mysql_num_rows($mydisplayname)>0) {
   while ($row = mysql_fetch_assoc($mydisplayname)) {
      extract($row);
      if(session_is_registered(myusername)){
         echo "Welcome ".$mydisplayname." | <a href='logout.php'>Logout</a>";
      }
      else
      {
         echo "<a href='login.php'>Login</a> | <a href='register.php'>Register</a>";
      }
   }
}
?>
</center>
<br /><br />
<table width="90%" border="0" align="center" cellpadding="3" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<td width="40%" align="center" bgcolor="#CCDDCC"><strong>Topic</strong></td>
<td width="20%" align="center" bgcolor="#CCDDCC"><strong>Author</strong></td>
<td width="15%" align="center" bgcolor="#CCDDCC"><strong>Views</strong></td>
<td width="13%" align="center" bgcolor="#CCDDCC"><strong>Replies</strong></td>
<td width="13%" align="center" bgcolor="#CCDDCC"><strong>Date/Time</strong></td>
</tr>

<?php
while($rows=mysql_fetch_array($result)){ // Start looping table row 
?>
<tr>
<td bgcolor="#FFFFFF"><a href="view_topic.php?id=<? echo $rows['id']; ?>"><? echo $rows['title']; ?></a><BR></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['author']; ?></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['views']; ?></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['posts']; ?></td>
<td align="center" bgcolor="#FFFFFF"><? echo $rows['datetime']; ?></td>
</tr>

<?php
// Exit looping and close connection 
}
mysql_close();
?>
<tr>
<td colspan="5" align="right" bgcolor="#CCDDCC">
<? 
if(isset($_SESSION['mysuername'])){
echo "<a href='create_topic.php'><strong>Create New Topic</strong> </a>";
}
else
{
echo "<a href='login.php'>Login</a> to start topics!";
}
?>
</tr>
</table>

[Please help me kill this bug...]

Post your code here so we can take a look at it (before you start pulling your hair out). Since I've recently formatted my hard disk (of a nasty virus), I don't have any mp3's yet.

[Quick PHP Question]

I've just read that if you're using $_SESSION, don't use session_register(), session_is_registered, and session_unregister(). Read more about it here.

[Functions - Returning a variable.]

First of all, please wait at least an hour before double posting. We all have lives, you know. Second of all, care to elaborate on your problem?

[Urgent Problem - Is my host screwed up?]

I've never heard that happening before. Check your script again.