Display custom field if it exists and has a specific value

2 comments

1. You can hook into the_title() to alter the output.

   In functions.php paste this:

   function my_change_title( $title, $post_id ) {
       $custom_title = get_post_meta($post_id, 'mycustomvalue', true);
   
       if( isset($custom_title) && $custom_title == 'apple' )
           return $custom_title;
   
       return $title;
   }
   add_filter('the_title', 'my_change_title', 10, 2);
   

   In your template, you can just use <?php the_title(); ?>

   ---

   To use your custom value in your template:

   <?php $custom_value = get_post_meta(get_the_ID(), 'mycustomvalue', true); ?>
   <?php if( isset($custom_value) && $custom_value == "apple" ) : ?>
       Do something
   <?php endif; ?>
   

2. Because, in your code you didn’t close the IF condition.

   I have modified your code but NOT tested.

   <?PHP
   $post_meta = get_post_meta(get_the_ID(), 'mycustomvalue', true);
   if( !empty( $post_meta ) && $post_meta == 'apple'){
       the_title();
   }
   ?>
   

   NOTE: if you don’t want pass the third parameter, you will get the result as an array and you have to change your code from !empty( $post_meta ) to count( $post_meta ) > 0

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