CODEWITHSUNDEEP
phpwordpressimplode
Keefer
Keefer

Reputation: 2289

PHP / WordPress Warning: implode() [function.implode]: Invalid arguments passed

I'm using the Advanced Custom Fields Pro plugin and its Flexible Fields

I'm getting the following PHP warning for each layout related to the implode I'm using on the $displayCat variable:

Warning: implode() [function.implode]: Invalid arguments passed in /server-path/wp-content/themes/theme-name/page-home.php on line XX

I thought it was because $displayCat wasn't always an array, so tried to put $displayCat = array(); but that didn't eliminate the warnings.

Any ideas?

if( have_rows('home_content') ):

   // loop through the rows of data
   while ( have_rows('home_content') ) : the_row();

      // 1x1 Nav
      if( get_row_layout() == '1x1_nav' ):

      $img = get_sub_field('img');
      $alt = get_sub_field('alt');
      $url = get_sub_field('url');
      $displayCat = implode('" "', get_sub_field('display_cat'));

Upvotes: 0

Views: 2281

Answers (1)

rnevius
rnevius

Reputation: 27092

get_sub_field() doesn't return an array...it returns a string. Since you're trying to make an array out of individual strings, you should do the following:

$displayCat[] = get_sub_field('display_cat');

This will append each 'display_cat' sub-field to the $displayCat array.

Then, outside of your while() loop, you can implode(' ', $displayCat);

Upvotes: 1

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