Please help Warning:implode()

Need help from some ninja WP Guru…

Under my theme options I made a checkbox list of all my categories so that users can check to exclude from the header menu. It seems to work fine. However, when I don’t have any of them checked I get this warning on every page: Warning: implode() [function.implode]: Invalid arguments passed in /home/kramz/public_html/blog/wp-content/themes/blognfolio/header.php on line 38

Warning: implode() [function.implode]: Invalid arguments passed in /home/kramz/public_html/blog/wp-content/themes/blognfolio/header.php on line 43

Any tips will be great. Thanks.

”,”.$bnf_exc_cat

”,”,$bnf_exc_cat

It’s gonna asplode! er, implode! RUN !

Sorry, couldn’t resist.

Thanks cy21, yes I meant to use a comma. The issue is that I receive a warning: implode() [function.implode]: but only when there has not been a selection made. Once a selection is made then everything works as should.

Thanks cy21, yes I meant to use a comma. The issue is that I receive a warning: implode() [function.implode]: but only when there has not been a selection made. Once a selection is made then everything works as should.

I’m not sure.. might be wrong on this.. but when a checkbox is not selected I think it returns a empty string.. so if you pass that empty string in a array might create a empty array and does not see the second variable as a valid argument or does not see it at all so it gives error…

Try to see what the $bnf_exc_cat variable has inside and if empty fill it with something or change the code.. put a if… you choose

Does this work?

if ( $bnf_exc_cat ) 
  $exclude = implode (",".$bnf_exc_cat);

Does this work?

if ( $bnf_exc_cat ) 
  $exclude = implode (",".$bnf_exc_cat);

why is everybody putting a . instead of a , in implode between variables ? (lol)

if ( $bnf_exc_cat ) 
  $exclude = implode (",",$bnf_exc_cat);

Another thing is that when testing it locally there’s no warning at all. But, when uploading it to my hosting provider the warning comes out.

$categorias = $bnf_exc_cat;
    if ($categorias){
        $categorias_exc= implode(",",$categorias);
    } else {
        $categorias_exc="";
    }

I assume this was because it was attempting to implode ‘nothing’.

Cheers!

Does this work?

if ( $bnf_exc_cat ) 
  $exclude = implode (",".$bnf_exc_cat);

why is everybody putting a . instead of a , in implode between variables ? (lol)

Just took the code from the first post

@ kramz, good you made it work!