internetprogrammierung/segments/_header.php

<div>
  <div id="carouselExampleSlidesOnly" class="carousel slide"  data-ride="carousel">
    <div class="carousel-inner" style="height: 100px;">
      <div class="carousel-item active">
        <img class="d-block h-100" src="img/header_pink.png" alt="First slide">
      </div>
      <div class="carousel-item">
        <img class="d-block h-100" src="img/header_lime.png" alt="Second slide">
      </div>
      <div class="carousel-item">
        <img class="d-block h-100" src="img/header_blue.png" alt="Third slide">
      </div>
    </div>
  </div>
</div>

<!--Navbar-->
<nav class="navbar sticky-top navbar-expand-lg navbar-dark bg-dark">
  <a class="navbar-brand" href="#">FriendsBook</a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>

  <div class="collapse navbar-collapse" id="navbarSupportedContent">
    <ul class="navbar-nav mr-auto">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">SPACER</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">SPACER</a>
      </li>
    </ul>
    <form class="form-inline my-2 my-lg-0">
      <div class="btn-group" role="group" aria-label="Basic example">
        <!-- Button trigger modal Login -->
        <button id="toggle-login" type="button" class="btn btn-secondary" data-toggle="modal" data-target="#login">
          Login
        </button>

        <!-- Button trigger modal Register -->
        <button type="button" class="btn btn-secondary" data-toggle="modal" data-target="#register">
          Register
        </button>
      </div>
    </form>
  </div>
</nav>
<!-- Modal login-->
<?php require("php/signin.php") ?>

<div class="modal fade" id="login" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title" id="exampleModalLabel">Login</h5>
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
      </div>
      <div class="modal-body">
        Login into your FriendsBook Account!
        <!--Login-->
        <form id="login-form" action="index.php" method="post">

        <div class="input-group input-group-sm mb-3">
          <div class="input-group-prepend">
            <span class="input-group-text" id="inputGroup-sizing-sm">Username</span>
          </div>
          <input type="text" class="form-control" name="loginName" aria-label="Small" aria-describedby="inputGroup-sizing-sm">
        </div>
        <div class="input-group input-group-sm mb-3">
          <div class="input-group-prepend">
            <span class="input-group-text" id="inputGroup-sizing-sm">Password</span>
          </div>
          <input type="password" class="form-control" name="loginPassword" aria-label="Small" aria-describedby="inputGroup-sizing-sm">
        </div>
        <div id="login-status">

        </div>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
        <button id="btnLogin" type="submit" class="btn btn-primary">Login</button>
      </div>
    </form>
    </div>
  </div>
</div>
<!-- Modal Register-->
<div class="modal fade" id="register" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title" id="exampleModalLabel">Register</h5>
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
      </div>
      <div class="modal-body">
        Join our Community now! #friends
        <!--Register-->
        <form id="create-form" action="index.php" method="post">

      <div class="input-group input-group-sm mb-3">
        <div class="input-group-prepend">
          <span class="input-group-text" id="inputGroup-sizing-sm">Username</span>
        </div>
        <input type="text" class="form-control"  name="registerName" aria-label="Small" aria-describedby="inputGroup-sizing-sm">
      </div>
      <div class="input-group input-group-sm mb-3">
        <div class="input-group-prepend">
          <span class="input-group-text" id="inputGroup-sizing-sm">Password</span>
        </div>
        <input type="password" class="form-control" name="registerPassword" aria-label="Small" aria-describedby="inputGroup-sizing-sm">
      </div>
      <div class="input-group input-group-sm mb-3">
        <div class="input-group-prepend">
          <span class="input-group-text" id="inputGroup-sizing-sm">EmailAdress</span>
        </div>
        <input type="text" class="form-control" name="registerMail" aria-label="Small" aria-describedby="inputGroup-sizing-sm">
      </div>
        ╭∩╮(ಠ۝ಠ)╭∩╮
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
        <button id="btnCreate" type="submit" class="btn btn-primary">Create Account</button>
      </div>
    </form>
    </div>
  </div>
</div>