<form action="registrieren.php" method="post">
    <label class="reg_label">Name</label>
    <span class="pflichtmaker"> * </span>
    <input name="name" maxlength="30"
    <?php
    if (isset($_POST['name'])) {
        echo "value='" . $_POST['name'] . "'";
    } 
     ?>
     />
     <span class="fehlermeldung"></span>
     <br>
     <label class="reg_label">Vorname</label>
     <span class="pflichtmaker"> * </span>
     <input name="vorname" maxlength="30" 
     <?php
     if (isset($_POST['vorname'])) {
        echo "value='" . $_POST['vorname'] . "'";
     } 
      ?>
      />
      <span class="fehlermeldung"></span>
      <br>
      <label class="reg_lab">E-Mail</label>
      <span class="pflichtfeld"> * </span>
      <input name="email" maxlength="30"
      <?php
      if (isset($_POST['email'])) {
        echo "value='" . $_POST['email'] . "'";
      } 
       ?>
      />
      <span class="fehlermeldung"></span>
      <br>
      <label class="reg_label">Userid</label>
      <span class="pflichtfeld"> * </span>
      <input name="userid" maxlength="20"/>
      <span class="fehlermeldung"></span>
      <br>
      <label class="reg_label">Passwort</label>
      <span class="pflichtfeld"> * </span>
      <input name="pw" type="password" maxlength="50"/>
      <span class="fehlermeldung"></span>
      <br>
      <label class="reg_label">Zusatzinfos</label>
      <span class="plichtfeld"> </span>
      <textarea name="zusatzinfos" rows="5" cols="30">
        <?php  
        if (isset($_POST['zusatzinfos'])) {
            echo $_POST['zusatzinfos'];
        }
        ?>
      </textarea>
      <span class="fehlermeldung"></span>
      <br>
      <input type="submit">
</form>