I'm having problem with pulling pages content from database

[malma]

I think now i'm becoming a familier with asking endlessly but please don't get tired of me.

Right now i'm having another problem;

I am to make the pages content from database appear on my localhost website but I don't know if i'm making mistakes somewhere.

Please take a look on my codes.

>>>>>>>>CONTENT AREA>>>>>>>>>>>

<?php require_once("includes/connection.php"); ?>
<?php require_once("includes/functions.php"); ?>
<?php find_selected_page(); ?>
<?php include("includes/header.php"); ?>
    <table id="structure">
        <tr>
        <td id="navigation">
         <?php echo navigation($sel_subject, $sel_page); ?>
    <br/>
    <a href="new_subject.php">+ Add a new subject</a>
        </td>
        
        <td id="page">
        <?php if (!is_null($sel_subject)) {//subject selected ?>
        <h2><?php echo $sel_subject['menu_name']; ?></h2>
        <?php } elseif (!is_null($sel_page)) { // page selected ?>
          <h2><?php echo $sel_page['menu_name']; ?></h2>




        
        <div class="page-content">
          <?php echo $sel_page['content']; ?>
        </div> 





         <?php } else { // nothing selected ?>
        <h2>Select a subject or page edit</h2>
       <?php }?>
               
            </td>
        
        </tr>
         
       
    </table>
    
 <?php require("includes/footer.php"); ?>


>>>>>>>>>FUNCTION<<<<<<<<<<<<


function get_pages_for_subject($subject_id){
     global $connection;
    $query = "SELECT * FROM pages
     WHERE subject_id = ($subject_id )
     ORDER BY position ASC";
     $page_set = mysqli_query( $connection, $query);
       confirm_query($page_set);
     return $page_set;
      }
  
    function get_subject_by_id($subject_id) {
    global $connection;
    $query = " SELECT * ";
     $query .= " FROM subjects ";
     $query .= " WHERE id=" . $subject_id ." ";
     $query .= " LIMIT 1";
    $result_set = mysqli_query($connection, $query);
     confirm_query($result_set);
     if($subject = mysqli_fetch_array($result_set)){    
        return $subject;  
      }else {
       return NULL;
             }
            }
    function get_page_by_id($page_id) {
                global $connection;
             $query = " SELECT * ";
             $query .= " FROM pages ";
             $query .= " WHERE id=" . $page_id ." ";
             $query .= " LIMIT 1";
             $result_set = mysqli_query($connection, $query);
             confirm_query($result_set);
            
             //REMEMBER: 
             // if no rows are returned, fetch_array will return false
             //** return $page;** on line 58 was bring error instead
             if($subject = mysqli_fetch_array($result_set)){    
               
             }else {
                return NULL;
             }
        }
        function find_selected_page(){  
            global $sel_subject;
            global $sel_page;
        if (isset($_GET['subj'])) {
    $sel_subject = get_subject_by_id($_GET['subj']); 
     $sel_page = NULL;
} elseif (isset($_GET['page'])) {
    $sel_subject = NULL;
    $sel_page = get_page_by_id($_GET['page']);
    } else {
        $sel_subject = NULL;
        $sel_page = NULL;
    }
  }

The underlined <div class="page-content> is not working, maybe I mased up my codes somewhere.

Thanks for your help.....

[joel24]

put some debugging in there to see if you reach that block as you've got a few if conditions prior

        <div class="page-content">
          <?php echo "<h1>IN HERE</h1><pre>".print_r($sel_page,1); ?>
        </div> 

[malma]

Thank you so much Joel24 for your advice but still not working, I just copped and paste the all php code as you wrote it.

[laflair13]

Although I am very new to php, I did notice you didnt wrap the function in <?php  FUNCTION CODE ?>

 

here is the code with it

>>>>>>>>CONTENT AREA>>>>>>>>>>>


<?php require_once("includes/connection.php"); ?>
<?php require_once("includes/functions.php"); ?>
<?php find_selected_page(); ?>
<?php include("includes/header.php"); ?>
    <table id="structure">
        <tr>
        <td id="navigation">
         <?php echo navigation($sel_subject, $sel_page); ?>
    <br/>
    <a href="new_subject.php">+ Add a new subject</a>
        </td>
        
        <td id="page">
        <?php if (!is_null($sel_subject)) {//subject selected ?>
        <h2><?php echo $sel_subject['menu_name']; ?></h2>
        <?php } elseif (!is_null($sel_page)) { // page selected ?>
          <h2><?php echo $sel_page['menu_name']; ?></h2>








        
        <div class="page-content">
          <?php echo $sel_page['content']; ?>
        </div> 










         <?php } else { // nothing selected ?>
        <h2>Select a subject or page edit</h2>
       <?php }?>
               
            </td>
        
        </tr>
         
       
    </table>
    
 <?php require("includes/footer.php"); ?>




>>>>>>>>>FUNCTION<<<<<<<<<<<<


<?php
function get_pages_for_subject($subject_id){
     global $connection;
    $query = "SELECT * FROM pages
     WHERE subject_id = ($subject_id )
     ORDER BY position ASC";
     $page_set = mysqli_query( $connection, $query);
       confirm_query($page_set);
     return $page_set;
      }
  
    function get_subject_by_id($subject_id) {
    global $connection;
    $query = " SELECT * ";
     $query .= " FROM subjects ";
     $query .= " WHERE id=" . $subject_id ." ";
     $query .= " LIMIT 1";
    $result_set = mysqli_query($connection, $query);
     confirm_query($result_set);
     if($subject = mysqli_fetch_array($result_set)){    
        return $subject;  
      }else {
       return NULL;
             }
            }
    function get_page_by_id($page_id) {
                global $connection;
             $query = " SELECT * ";
             $query .= " FROM pages ";
             $query .= " WHERE id=" . $page_id ." ";
             $query .= " LIMIT 1";
             $result_set = mysqli_query($connection, $query);
             confirm_query($result_set);
            
             //REMEMBER: 
             // if no rows are returned, fetch_array will return false
             //** return $page;** on line 58 was bring error instead
             if($subject = mysqli_fetch_array($result_set)){    
               
             }else {
                return NULL;
             }
        }
        function find_selected_page(){  
            global $sel_subject;
            global $sel_page;
        if (isset($_GET['subj'])) {
    $sel_subject = get_subject_by_id($_GET['subj']); 
     $sel_page = NULL;
} elseif (isset($_GET['page'])) {
    $sel_subject = NULL;
    $sel_page = get_page_by_id($_GET['page']);
    } else {
        $sel_subject = NULL;
        $sel_page = NULL;
    }
  }
  ?>