add action

add_demand.php

@@ -35,7 +35,7 @@ date_default_timezone_set('Europe/Amsterdam');
     <!-- The Post function begins here  -->
     <div>
       <h2>New entry</h2>
-      <form class= 'post-box p' method='POST' action=''>
+      <form class= 'post-box p' method='POST' action='<?= $_SERVER['PHP_SELF'] ?>'>
           Title<br>
           <input type='text' name='title' required><br>
           <br>

index.php

@@ -21,7 +21,7 @@ include 'functions.php';
     </div>
     <div class="form">
         <h1>Log In</h1>
-        <form action="" method="post" name="login">
+        <form action="<?= $_SERVER['PHP_SELF'] ?>" method="post" name="login">
         <input type="text" name="username" placeholder="Username" required />
         <input type="password" name="password" placeholder="Password" required />
         <input name="submit" type="submit" value="Login"/>

registration.php

@@ -23,7 +23,7 @@ include 'functions.php';
 </div>
 <div class="form">
     <h1>Registration</h1>
-    <form name="registration" action="" method="post">
+    <form name="registration" action="<?= $_SERVER['PHP_SELF'] ?>" method="post">
         <input type="text" name="username" placeholder="Username" required />
         <input type="email" name="email" placeholder="Email" required />
         <input type="password" name="password" placeholder="Password" required />