You don’t need to check if meta data exists prior to adding/updating it. update_post_meta does this for you. (See Codex) update_post_meta($post_id, $meta_key, $meta_value, $prev_value); The fourth (optional) $prev_value argument, if set, will update only $meta_key-$prev_value pairs. If not set, it will update all values for that $meta_key for that post. If it can’t find that … Read more
you can use the same meta_key for multiple values, for example: meta_key – ‘links’ meta_value – ‘link1’ meta_key – ‘links’ meta_value – ‘link2’ then you can get the meta as an array of links: $links = get_post_meta($post->ID, ‘links’); if ($links){ foreach ($links as $link){ echo $link; } }
Maybe try something like this before the loop: <?php query_posts( wp_parse_args( $query_string, array( ‘meta_key’ => ‘your_meta_key’, ‘orderby’ => ‘meta_value’ ) ) ); ?>
You can use a simple custom field and tweak your template a little, for example say you call that custom filed “original_author” then your theme you need to replace <?php the_author(); ?> with: <?php echo get_post_meta($post->ID,’original_author’,true); ?>
the update post function actually calls the insert function so it should work, now I’m not sure but try changing: if(!strlen($photo_url)){ to: if(empty($photo_url)){ since php strlen() returns 0 on an empty string.
This should help: http://wordpress.org/support/topic/custom-select-query-sort-by-meta-value-within-category (look for the posts from user t31os) Also this: http://codex.wordpress.org/Template_Tags/query_posts#Passing_variables_to_query_posts
If it’s a single post or page, you can just pass the global $post->ID: echo get_post_meta($post->ID, ‘fb_name’, true);
You probably would have to use a script which would have to be referenced in your crontab. The problem is to calculate the final value of the popularity for each post, but if you apply the funcion the right way in the PHP script, the UPDATE operation on your MySQL database should work nicely. Here … Read more
The only built in way ( using a function) is to use WP Query and the custom field parameters, specifically meta_query and compare. http://codex.wordpress.org/Class_Reference/WP_Query#Custom_Field_Parameters An example to get you started: $query = new WP_Query( array( ‘meta_key’ => ‘your_date’, ‘meta_compare’ => ‘=’ ) ); Alternatively, the custom field functions in WordPress do not have many parameters, … Read more
This code should be conditional first and then form output since you can’t use wp_redirect after headers are set and you are updating so use update_post_meta instead of add_post_meta. Try: if( ‘POST’ == $_SERVER[‘REQUEST_METHOD’] && !empty( $_POST[‘action’] ) && $_POST[‘action’] == “edit_post” && isset($_POST[‘pid’])) { $the_post = get_post($_POST[‘pid’]); $the_post = array(); $the_post[‘post_content’] = $_POST[‘description’]; $the_post[‘data’] … Read more