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I have the following code in a comment entries tag

{if logged_in_member_id == author_id}
  <span class="reply"><a href="http://{path=Bands/Delete_Comment/{segment_3}/{comment_id}}">Delete</a></span>
{if:elseif logged_in_member_id != author_id}
   <span class="reply">a href="#">Reply</a></span>
 {/if}

If I then modify the condition to the following I get a PHP error

{if logged_in_member_id == author_id && logged_in}

A PHP Error was encountered

Severity: Notice
Message: Use of undefined constant TRUEFALSE - assumed ‘TRUEFALSE’
Filename: libraries/Functions.php(680) : eval()‘d code
Line Number: 193
A PHP Error was encountered

Severity: Notice
Message: Use of undefined constant TRUEFALSE - assumed ‘TRUEFALSE’
Filename: libraries/Functions.php(680) : eval()‘d code
Line Number: 195

Any ideas?  Is Functions.php(680) the line number of the function?  It refers to the following if it is…

function evaluate($str)
 {
  return eval('?'.'>'.$str.'<?php ');  
 }

I changed my if statement to this and now it does what I want.  Just curious why it’s returning a PHP error…

{if logged_out}
   <span class="reply">a href="#">Reply</a></span>
{if:elseif logged_in_member_id == author_id}
     <span class="reply"><a href="http://{path=Bands/Delete_Comment/{segment_3}/{comment_id}}">Delete</a></span>
{if:elseif logged_in_member_id != author_id}
    <span class="reply">a href="#">Reply</a></span>
{/if}

Hi tabboy,

I suspect the PHP error was thrown because this:

{if logged_in_member_id == author_id && logged_in}

is redundant since logged_in_member_id won’t return the author’s ID if the user viewing the page isn’t logged in. Make sense? In other words, this statement:

{if logged_in_member_id == author_id}

will already evaluate false if the viewer isn’t logged-in. Your first code sample should do what you want. Are you getting unexpected results?

Yes that makes perfect sense!  Now I feel like an idiot ha ha Thanks for you help I can sleep better at night now 😊  Please close the call.

Hello tabboy,

I am glad to see that Kevin was able to help you out!

If you need anything else, please just let me know by opening a new thread.

Cheers,