Simple php quote syntax error on echo usage inside echo

Question

I have no problem with creating php submenu class selected but when i try to create this submenu inside submenu: I can't get it work.

Problem: Defining echo inside echo returning syntax error because of quotes.

<ul class="sub_nav">
  <li <?php if ($page=='kurumsal-hakkimizda') {echo "class='selected'";} ?>>
    <a href="<?=BAZ_URL?>/tr/kurumsal-hakkimizda">Hakkımızda</a>
  </li>
  <li <?php if ($page=='kurumsal-ik') {echo "class='selected'";} ?>>
    <a href="<?=BAZ_URL?>/tr/kurumsal-ik">İnsan Kaynakları</a>
    <?php
      if ($page=='kurumsal-ik')
      { echo '
        <ul id="sub_sub_nav">

           <!-- !! PROBLEM STARTS HERE !! -->
           <li class="'if($page=='kurumsal-ik'){echo 'selected'}'">
           <!-- !! CANT USE ECHO INSIDE ECHO BEACUSE OF QUOTES !! -->

            <a href="'.BAZ_URL.'/tr/kurumsal-ik">İnsan Kaynakları Politikamız</a>
           </li>

           <li class="'if($page=='kurumsal-hedef'){echo 'selected'}'">
            <a href="'.BAZ_URL.'/tr/kurumsal-hedef">Kurumsal Hedef</a>
           </li>
        </ul>
     ';}
    ?>
  </li>
  <li <?php if ($page=='kurumsal-haberler') {echo "class='selected'";} ?>>
    <a href="<?=BAZ_URL?>/tr/kurumsal-haberler">Kurumsal Haberler</a>
  </li>
</ul>

Answer 1

Its already inside echo right? So do this:

<li class="', ($page=='kurumsal-ik') ? 'selected' : '', '">

It works for sure. It is called ternary operator! :)

Note: Dot concatenation operator cannot be used here, because, the ternary operator acts as a function returning a value. Only comma , can be used.