Problem with Conditionals in functions.php

  • Resolved WPChina

    (@wordpresschina)


    6 years, 11 months ago

    I want to prepend content to my posts in the Single Posts and RSS Feeds. Here is the code I currently use and it works well:

    add_filter('the_content','add_postdata_to_content');
function add_postdata_to_content($content) {
global $post;
if ( is_single() || is_feed() ) {
  $postdata .= '<!-- BEGIN --><strong>' . get_post_meta( $post->ID, 'cityname', true ) . ', ' . get_the_time('Y-m-d') . '<!-- END --> ';
return preg_replace('/<p>/', '<p>' . $postdata, $content, 1);
}
else 
{
  $postdata .= '<p>';
return preg_replace('/<p>/', '<p>' . $postdata, $content, 1);
}
}

    But one of my Categories (ID = 409) does not have post meta for the ‘cityname’ field, so I want to always use “New York” in that space.

    What is the best way to include “New York” if the get_post_meta for ‘cityname’ is empty or if it is in the category # 409? it would be best to only fix it for showing “New York” for category 409, but showing it when post meta is empty si also a possibility.

Viewing 2 replies - 1 through 2 (of 2 total)
  • justinwhall

    (@jwind)

    6 years, 11 months ago

    Check if the post meta is an empty string…

    
add_filter('the_content','add_postdata_to_content');
function add_postdata_to_content($content) {
    global $post;
    if ( is_single() || is_feed() ) {

      $postdata .= '<!-- BEGIN --><strong>';
      // ternary to check if there is post meta value for cityname. if not, use 'New York'
      $postdata .= ( get_post_meta( $post->ID, 'cityname', true ) !== '' ) ? get_post_meta( $post->ID, 'cityname', true ) : 'New York';
      $postdata .= ', ' . get_the_time('Y-m-d') . '<!-- END --> ';

      return preg_replace('/<p>/', '<p>' . $postdata, $content, 1);
    } else {
      $postdata .= '<p>';
        return preg_replace('/<p>/', '<p>' . $postdata, $content, 1);
    }
}
    • This reply was modified 6 years, 11 months ago by justinwhall.
    Thread Starter WPChina

    (@wordpresschina)

    6 years, 11 months ago

    Works excellent! Thanks so much~

Viewing 2 replies - 1 through 2 (of 2 total)
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