remove some unnecessary parts

add_demand.php

@@ -34,9 +34,7 @@ date_default_timezone_set('Europe/Amsterdam');
     <!-- The Post function begins here  -->
     <div>
       <h2>New entry</h2>
-
-      <?php
-      echo "<form class= 'post-box p' method='POST' action='".post_demand($con)."'>
+      <form class= 'post-box p' method='POST' action=''>
           Title<br>
           <input type='text' name='title' required><br>
           Quality<br>
@@ -55,8 +53,9 @@ date_default_timezone_set('Europe/Amsterdam');
           <textarea rows='6' cols='40' name='text' required></textarea><br>
           <button type='submit' name='submit'>SUBMIT</button>
           </form>
-          ";
-      ?>
     </div>
+    <?php
+      post_demand();
+    ?>
 </body>
 </html>

edit_demand.php

@@ -41,8 +41,7 @@ date_default_timezone_set('Europe/Amsterdam');
       $title= $_POST['title'];
       $text = $_POST['text'];
 
-      echo
-      "<form class= 'post-box p' method='POST' action='".edit_demand($con)."'>
+      echo "<form class= 'post-box p' method='POST' action='".edit_demand()."'>
           <input type='text' name='title' value='".$title."'><br>
           <input type='hidden' name='userId' value='".$userId."'>
           <input type='hidden' name='demandId' value='".$demandId."'><br />Maximum required pieces<br/>

functions.php

@@ -57,7 +57,7 @@ function register ()
 }
 
 //A function to read out the userId of the current user
-function get_userid ($con)
+function get_userid ()
 {
     global $con;
     session_start();
@@ -69,11 +69,11 @@ function get_userid ($con)
 }
 
 // A function to post a demand
-function post_demand ($con)
+function post_demand ()
 {
     if (isset($_POST['submit'])) {
         global $con;
-        $userId = get_userid($con);
+        $userId = get_userid();
         $piecesMax = $_POST['piecesMax'];
         $piecesMin = $_POST['piecesMin'];
         $qualityId = $_POST['quality'];
@@ -95,7 +95,7 @@ function post_demand ($con)
 }
 
 // A function to insert the own posts from the database into the website
-function get_demand_titles ($con)
+function get_demand_titles ()
 {
         global $con;
         $sql = "SELECT * FROM demands";
@@ -106,7 +106,7 @@ function get_demand_titles ($con)
             echo $row['date'] . "<br>";
             echo "</p>
             <form class= 'delete-form' method= 'POST'
-              action='".delete_demand($con)."'>
+              action='".delete_demand()."'>
             <input type='hidden' name='demandId' value='".$row['demandId']."'>
             <button type='submit' name= 'deletepost'> Delete</button>
             </form>
@@ -126,7 +126,7 @@ function get_demand_titles ($con)
 
 
 // A function to edit a demand
-function edit_demand ($con)
+function edit_demand ()
 {
     if (isset($_POST['edit'])) {
         global $con;
@@ -154,7 +154,7 @@ function edit_demand ($con)
     }
 }
 // A function to delete a post
-function delete_demand($con)
+function delete_demand()
 {
     if (isset($_POST['deletepost'])) {
         global $con;
@@ -166,4 +166,4 @@ function delete_demand($con)
         header('Location: board.php');
   }
 }
-?>
+?>