使用onclick（）重定向到下一页

Question

<?php
session_start();
?>
<a href="hola.php" onclick="return check();">Take me</a>
<script type="text/javascript">
function check() {
   <?php 
  if(isset($_SESSION['user'])
    return true;
  else
    return false;
  ?>
}
</script>

A user will be able to redirect to next page only if he is logged in, otherwise he is prevented to the same page. I've checked for solutions but don't find what I am looking for. Is php script valid inside javascript script?

Answer 1

I think what you are trying to do is:

function check(){
    <?php  if(isset($_SESSION['user'])){ ?>
        return true;
    <?php } ?>
    return false;
}

But without a JS function you can to this:

<?php if(isset($_SESSION['user'])){ ?>
    <a href="hola.php" >Take me</a>
<?php }else { ?>
    <a href="#" >Take me</a>
<?php } ?>