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Editorial Team
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Asked: 2026-05-22T02:22:29+00:00

I’ve got this piece of code: <?php $userid = $me[‘id’]; function showifuserexists() { ?>

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I’ve got this piece of code:

<?php
  $userid = $me['id'];
  function showifuserexists() {
?>
<html>
  <head></head>
<body>
  <a href="file.php?element1=aaa&userid=<?php print $userid; ?>">
</body>
</html>
<?php
} 
?>

For some reason I can’t get the php $userid to show up in the html link. I’ve tried echo too. Help?

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1 Answer

  1. Editorial Team

    You should read up on variable scope.

    $userid in your function is not the same as $userid outside of your function – it has a different scope. You could make the variable global, but that’s not really good practice, especially in this context.

    I’m not really sure what you are trying to achieve; but I guess..

    function showifuserexists($userid=null) {
    echo '<a href="file.php?element1=aaa&userid=' . $userid . '"> ... </a>';
    // functions should *generally* return output, but for examples sake
}

    then you would do:

    showifuserexists($me['id']);

    for example. But your requirements aren’t really that clear.

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