PHP - Is A New Hash Generated Every Time A Form Is Submitted?

hey guys im having trouble showing the news by the date it was submitted, I want to also seperate it into 3 seperate parts,

first section will have the Main news which is only 1 row, it will have the value 1 in the column named type (is this news main or recent). The date on it doesn't matter because i want to show it even tho there might be news that is ahead of it.

The next section will have 3 rows of recent news parts. I want to show the 3 most recent news that there are in the database with the value 2 in the column named type. I want it to show the recent news by the date submitted.

Okay the last part will have the old news. There I want to show 3 rows of news that is after the 3 rows of news in recent news. That value will be 2 in the column named type.

Here is my current code.


<?php
session_start();
if(isset($_SESSION['username']))
{

mysql_connect("localhost","root","");
mysql_select_db("chat");


        $result = mysql_query("SELECT * FROM `news` WHERE `type`='1' ORDER BY `news`.`newsid` DESC LIMIT 1");
        $query = mysql_query("SELECT * FROM news WHERE `type`='1' ");
        //$ifadmin_result = mysql_query("SELECT * FROM users WHERE `username`='$loggedin' ");

if(mysql_num_rows($query)!=0)
{
$loggedin = $_SESSION['username'];
    $myrow = mysql_fetch_array($result);
       echo "<b>Title: ";
       echo $myrow['title'];
       echo "</b><br>On: <i>";
       echo $myrow['dtime'];
       echo "</i><hr align=left width=160>";
       echo $myrow['text1'];
       
       
       //check if admin
       $ifadmin_result = mysql_query("SELECT * FROM users WHERE `username`='$loggedin'");
       $ifadmin = mysql_fetch_array($ifadmin_result);
       if ($ifadmin['admin'] == 1) { 
       echo "<br><a href=\"read_more.php?newsid=$myrow[newsid]\">Read More...</a>
        || <a href=\"edit_news.php?newsid=$myrow[newsid]\">Edit</a>
         || <a href=\"delete_news.php?newsid=$myrow[newsid]\">Delete</a><BR><BR>";
            }  
                else {
                echo "<br><a href=\"read_more.php?newsid=$myrow[newsid]\">Read More...</a><BR>";
            }
         //check if admin
         
       echo "<hr align=left width=500>";
       }
       else
       {
       echo "no rows<br>";
       }

        $iCount=0;
        $var=false;
        //RECENT
        $result = mysql_query("SELECT * FROM `news` WHERE `type`='2' ORDER BY `news`.`newsid` DESC LIMIT 6");
        //lets make a loop and get all news from the database
       while($myrow = mysql_fetch_array($result))
             {//begin of loop
               //now print the results:
               $iCount = $iCount+1;
                if($iCount >= 4) {
                    if($var == false) {
                    $var=true;
                           echo "<hr align=left width=500>";
                    echo '<div> More News</div';
                    }
                    //Generate your refcent news here echo the title etc.ma
                   echo "<div><b>Title: ";
                   echo $myrow['title'];
                   echo "</b> <i>On:" . $myrow['dtime'] . '</i></div>';
                   echo "<a href=\"read_more.php?newsid=$myrow[newsid]\">Read More...</a>";
                } 
                else
                {
               echo "<b>Title: ";
               echo $myrow['title'];
               echo "</b><br>On: <i>";
               echo $myrow['dtime'];
               echo "</i><br>";
               //echo "<hr align=left width=160>";
               echo $myrow['text1'];
               // Now print the options to (Read,Edit & Delete the news)
               
               
                              $ifadmin_result = mysql_query("SELECT * FROM users WHERE `username`='$loggedin'");

       $ifadmin = mysql_fetch_array($ifadmin_result);
       if ($ifadmin['admin'] == 1) 
            { 
       echo "<br><a href=\"read_more.php?newsid=$myrow[newsid]\">Read More...</a>
        || <a href=\"edit_news.php?newsid=$myrow[newsid]\">Edit</a>
         || <a href=\"delete_news.php?newsid=$myrow[newsid]\">Delete</a><BR><hr align=\"left\" width=\"160\">";
            }  
                else
            {
                echo "<br><a href=\"read_more.php?newsid=$myrow[newsid]\">Read More...</a><hr align=\"left\" width=\"160\">";
            }
               
               
               
               
               
               
               
               
               /*
               echo "<br><a href=\"read_more.php?newsid=$myrow[newsid]\">Read More...</a>
                || <a href=\"edit_news.php?newsid=$myrow[newsid]\">Edit</a>
                 || <a href=\"delete_news.php?newsid=$myrow[newsid]\">Delete</a><br><hr align=\"left\" width=\"160\">";
                 */
                }
                
                
             }//end of loop
             
}
else
{

mysql_connect("localhost","root","");
mysql_select_db("chat");

$result = mysql_query("SELECT * FROM `news` WHERE `type`='1' ORDER BY `news`.`newsid` DESC LIMIT 1");
        $query = mysql_query("SELECT * FROM news WHERE `type`='1' ");
if(mysql_num_rows($query)!=0)
{
    $myrow = mysql_fetch_array($result);
       echo "<b>Title: ";
       echo $myrow['title'];
       echo "</b><br>On: <i>";
       echo $myrow['dtime'];
       echo "</i><hr align=left width=160>";
       echo $myrow['text1'];
       echo "<br><a href=\"read_more.php?newsid=$myrow[newsid]\">Read More...</a><BR>";
       echo "<hr align=left width=500>";
       } else {
       echo "no rows<br>";
       }
        $iCount=0;
        $var=false;
        //RECENT
        $result = mysql_query("SELECT * FROM `news` WHERE `type`='2' ORDER BY `news`.`newsid` DESC LIMIT 6");
        //lets make a loop and get all news from the database
       while($myrow = mysql_fetch_array($result)) {
       //begin of loop
               //now print the results:
               $iCount = $iCount+1;
                if($iCount >= 4) {
                    if($var == false) {
                    $var=true;
                           echo "<hr align=left width=500>";
                    echo '<div> More News</div';
                    }
                    //Generate your refcent news here echo the title etc.ma
                   echo "<div><b>Title: ";
                   echo $myrow['title'];
                   echo "</b> <i>On:" . $myrow['dtime'] . '</i></div>';
                   echo "<a href=\"read_more.php?newsid=$myrow[newsid]\">Read More...</a>";
                } else {
               echo "<b>Title: ";
               echo $myrow['title'];
               echo "</b><br>On: <i>";
               echo $myrow['dtime'];
               echo "</i><br>";
               //echo "<hr align=left width=160>";
               echo $myrow['text1'];
               // Now print the options to (Read,Edit & Delete the news)
               echo "<br><a href=\"read_more.php?newsid=$myrow[newsid]\">Read More...</a><hr align=left width=160>"; 
                }
                                                    }//end of loop        





}             
?>

<br>
<hr align=left width=500>
<!--
<hr align=left width=500>
<br><br>
<a href=index.php>Home</a> 

<a href=add_news.php>Add News</a>
-->


Here is how my database table looks like


Dont mind the number of rows it is, I want it to show the first I guess 7 rows of news that is dated to the earliest time from present.
There soon will be hundreds of rows.

Here is how I made it fill in the row with the most recent time it was posted.
NOW()
in
$result = mysql_query("INSERT INTO news (title, dtime, text1, text2, type) VALUES ('$title',NOW(),'$text1','$text2','$type')");


Basically I want it to show the most recent rows based on the time they were posted.



Also, incase you need more information please post and il give me information.

I want the script to check if something already has been submitted into the database before the submission, I tried it to do it with num_rows, but I'm encountering a problem.

Here's the script:


$con_submit = $_POST['submit'];
$user_id = $_SESSION['user_id'];

if ($con_submit && isset($user_id)) {

$dbc = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);

  

// POST variables

$knuffix_name = strip_tags(trim($_POST['knuffix_name']));

$knuffix_contribution = $_POST['knuffix_contribution'];

$knuffix_category = strip_tags(trim($_POST['sort_category']));

$query = sprintf("SELECT * FROM con WHERE contribution = '%s'",

mysqli_real_escape_string($dbc, $knuffix_contribution));

$query_run = mysqli_query ($dbc, $query) or die (mysqli_error ($dbc));

$num_rows = mysqli_num_rows ($query_run) or die (mysqli_error ($dbc));

// $assoc = mysqli_fetch_assoc ($query_run) or die (mysqli_error ($dbc));

echo "num rows" . $num_rows;

    // and then as an example:

if ($num_rows ==  0) {

// run INSERT INTO script

}

}




When there are entries in the database then num_rows will return me the amount of entries in the echo, BUT if there are ZERO entries, then nothing will happen, and that is because of the query.

Since the query looks as follows:

Code: [Select]
SELECT * FROM con WHERE contribution = '$variable_post_submission'

Which means if there's no entry in the database at all, then the query has nothing to select, which again makes the rest of the script NOT work.
Which means that num_rows does not return any value, the echo will not even get printed out.
But I on the other hand would like num_rows to return zero and have the script continue by INSERTING the submitted data into the database.


Any ideas how I could accomplish this?

I now know how to append GET over normal hyperlinks, but I don't know how to do it with form submissions.

Here's the problem:

I have a form like this one:


<form method="GET" action="">

<?php 
require_once ('sort_category_func.php');
$switch = 1;
sort_category ($switch); 
?>

+ Most Liked <input type='checkbox' value='mostLiked' name='mostLiked' />
<br />
<input type="submit" name="sortSubmit" value='Go' />
<br /><br />
</form>




And the variables:


// DROP DOWN MENU VARIABLES
$select_category = $_REQUEST['sort_category'];
$most_liked = $_GET['mostLiked'];


I'm using a while loop to list user submission, you can also sort them by category which works over GET, this works as long as there is no GET data already in the URL, but as soon as there is GET data it won't work anymore.

Here's an example:

If I have a user profile page opened like this:


profile.php?user=konopkov


And a category has been chosen to sort the user's submissions the URL will change to:


profile.php?sort_category=Logos


INSTEAD it should be:


profile.php?user=konopkov&sort_category=Logos


As I said I know how to achieve this with hyperlinks now, but I have no clue how do it with form submissions.

Any suggestions?

Thanks.

Up until now, I have been writing Forms that submit back to themselves.

Now I want to break up my code.

I usually have this PHP at the top of my forms...

Code: [Select]
<?php
// ********************************************
// HANDLE FORM.  *
// ********************************************
if ($_SERVER['REQUEST_METHOD']=='POST'){
// Form was Submitted (Post).


If I change my Form Action to point to another script, will this code work in that new script??  (In other words, will Script_B be able to detect $_SERVER['REQUEST_METHOD']=='POST' ??)

Thanks,



Debbie

I've got a BIG problem...

When a user submits my form it works fine, displays a "Transaction Success/Failed", and e-mails me a confirmation.

However, if the user then navigates to another page (e.g. "Home"), and then clicks their browser's "Back" button, my form gets re-submitted?!    

This is on a VPS, but I just chatted with server support and they are saying,

Quote

register_globals = Off


So what is going wrong?!



Debbie