The emailer::send is the function callback for a publish_post action hook. This action hook accepts only one parameter which is the post ID and it is passed by WordPress. When you define an action hook, you set what parameters are passed to the callback functions. For example: $arg_1 = “The aregument value”; do_action( ‘my_custom_action’, $arg_1 … Read more
The proper way to include jquery in your plugin is /** * Proper way to enqueue scripts and styles */ function theme_name_scripts() { wp_enqueue_script( ‘script-name’, get_template_directory_uri() . ‘/js/example.js’, array(), ‘1.0.0’, true ); } add_action( ‘wp_enqueue_scripts’, ‘theme_name_scripts’ );
In practice in wordpress the number of SQL queries has the biggest impact on the performance of the site and the quality of the PHP code is usually irrelevant. In theory for any additional PHP file that you include you delay your code by the time needed to fetch the file from the disk. This … Read more
WordPress by default will only load 10 posts. That can be changed in the admin under Settings->Reading and then setting the amount beside “Blog pages show at most”. You can override that number in your custom queries a couple of ways but I would first recommend against the use of query_posts() ( take a read … Read more
Using your code you could something like this: function my_custom_admin_head(){ global $post; echo ‘<script type=”text/javascript”> var js_post_id =’ . $post->ID . ‘;</script>’; } And then just use the var js_post_id. You shoudl try to read about the script localization function and use it.
If I understand well, you want to append to every post a meta value taken from another post, but the latter need to be dynamic, so not hardcoded in the function. In OP you say the post id is “user-defined”. What does it exactly mean? If it is stored somewhere or it is given as … Read more
There is no safe way to encrypt a password which is also reversible. The whole point of a hash function, such as is used for passwords, is that it is one-way. You can encrypt it, not decrypt it. If the password is decryptable, then you might as well not have the encryption in the first … Read more
I am a little confused as to your question. If you know how to create shortcodes with attributes, then I think the answer to your question is to simply output text with the correct attributes predefined. For example, just add text into your custom column for the appropriate arguments, such as echo “[book id=” . … Read more
Is something missing in my theme? Most likely. If you’re using WordPress 4.1, make sure there is no <title /> in your header.php and add the following to your functions.php: add_theme_support( ‘title-tag’ ); Otherwise, make sure the title tag looks like: <title><?php wp_title( ” ) ?></title> You should also have <?php wp_head() ?> within your … Read more
Straight outta the Codex: wp_enqueue_scripts is the proper hook to use when enqueuing items that are meant to appear on the front end. Despite the name, it is used for enqueuing both scripts and styles. So the simple answer to your question is yes, wp_enqueue_scripts is always the correct action for enqueuing scripts AND styles. … Read more