Thread

When myvar is set, this does not work.

{if myvar}DO STUFF{/if}

However with the following…

{if {myvar}}DO STUFF{/if}

When myvar is set to an empty string or false it causes the template to stop rendering and outputs the following error:

Parse error: syntax error, unexpected ‘)’ in /home/admintel/public_html/ee/ee_sys/core/core.functions.php(637) : eval()‘d code on line 115

Fatal error: Call to undefined function ob_end() in /home/admintel/public_html/index_to_include.php on line 217

ExpressionEngine 1.6.7
Build:  20090320

Hi, Napco.

Try the following for testing for an empty value…

{if myvar!=""}DO STUFF{/if}

Does that work for you? Also, we do recommend you upgrade to EE1.7.0 since it’s a security upgrade.

{!--That does work thanks. Can't have any spaces between the operator and the operands.--}

Wait. Not it doesn’t. The page executes, but myvar!==”” returns true when myvar is an empty string anyway.

????

You need != not !== give that a try.

{quantcast}
{if {quantcast}!=''}Singles - With Braces{/if}
{if quantcast!=''}Singles - Without Braces{/if}
{if {quantcast}!=""}With Braces{/if}
{if quantcast!=""}Without Braces{/if}

Running that code merely outputs the value of the {quantcast} variable. It has a value, yet NONE of the preceding four conditionals yield any output.

Hi Napco,

What populates this variable and what is its exact content? Please make sure that you leave a space between the variable and the comparator:

{if quantcast != ''}...code…{/if}

Cheers

Greg

<?php

    $vars = array('page_title'=>'Some Web Page', 'quantcast'=>'Quantast ID');
    
    foreach ($vars as $name=>$value) {
        echo '{assign_variable:'. $name .'="'. $value .'"}';
    }
?>
{page_title}
{if page_title != ''}There was a page title{/if}
{if comscore != ''}There was a Comscore ID{/if}

This is a cursory example of the code. The template is set to execute PHP on input.

The output of the above is simply “Some Web Page” due to the use of the {page_title} variable. However the conditionals return false despite the variable holding content.

I can move the logic to PHP, but this still makes no sense to me.

Napco,

Your issue is parse order. Simple conditionals are parsed after PHP so that is never going to evaluate

What are you trying to achieve ? There may be an easier way. Without using PHP at all