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I need to do the following: The sense if I have a class dportfolio - show a category dportfolio. Otherwise show usual category.

I use:

if ( class_exists( 'DPortfolio' ) ) {
      echo DPortfolio::instance()->dportfolio_get_category();
}; ?>

and when I try to add a second part of a code:

the_category(', ')

with if/else statement, I receive a php error.

Any suggestions to write this function in a correct way?

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Is the code used inside of the loop? The following code should work:

if ( class_exists( 'DPortfolio' ) ) {
      echo DPortfolio::instance()->dportfolio_get_category();
}else{
    the_category();
    //or echo get_the_category();
}

If outside of the loop you can try echo get_the_category( $post_id ) to show the categories.

Note: As you are getting an error, if you edit the question, include the full code snippet with if/else and include the error, then it's easier to help.

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  • I use this code inside a loop. If I use your code, I receive this error: "Warning: Invalid argument supplied for foreach() in class-dportfolio.php on line 78". I receive this error in a posts loop and in a post single. – MichaelNagval Oct 21 '14 at 8:40
  • And on line 78, in class-dportfolio.php I have this function: public function dportfolio_get_category() { global $post; $terms = get_the_terms( $post->ID, 'dportfolio_categories' ); $content = ''; foreach ($terms as $term) { //this is a line 78 $content .= '<a href="'. $term->slug .'">'. $term->name .'</a>'; } return $content; } – MichaelNagval Oct 21 '14 at 8:40
  • Would you please paste your full class-dportfolio.php code in pastebin and send the link? – Ashok Kumar Nath Oct 21 '14 at 9:25
  • Thnx you very much! pastebin.com/Wp4Cypkx – MichaelNagval Oct 21 '14 at 11:41
  • First of all, are you sure the taxonomy name is dportfolio_categories? If yes, what do you see if you print $terms in line 76 and print the global $post in line 74? Like this: pastebin.com/fBuFFp0v This will make sure if $terms is really an array. – Ashok Kumar Nath Oct 21 '14 at 15:20

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