Step by step: First find the file where the error message appear. I use Notepad++ and the CTRL + F command to search in files. It is a good idea to search only the first few words of the error message, because some error messages are combined of different messages. Your error message appear in … Read more
If I had to do this, I’d use my own cookie to determine login and only load WordPress to check when necessary. The wordpress_logged_in_{some-hash} cookie can be used to determine the user, and WordPress uses it to determine same. You can’t easily reimplement that, but you can use it without loading WordPress on multiple requests. … Read more
That’s question is only relevant, because WordPress use a mix from a coding language and layout language. If you would use a template language, syntax, than is this topic not relevant. But to your question. If you use your example source for a Theme, much more layout language like html, then I prefer the first … Read more
Use the native php function Filter Validator if (filter_var($url, FILTER_VALIDATE_URL) === FALSE) { die(‘Not a valid URL’); }
Your edit got me to this idea, there indeed is no function called »woocommerce«, there is a class »WooCommerce« though. One thing to be aware of is, that the check has to late enough, so that plug-ins are actually initialized, otherwise – obviously – the class won’t exists and the check returns false. So your … Read more
Simply put WP turns indeterminate situation (magic quotes might or might not be enabled in server configuration) into determinate (magic quotes are always present and server configuration does not matter). Rather than messing with this for all WP core it makes much more sense to simply strip slashes in your code on your own variables, … Read more
Yes, WordPress’s maintains backward compatibility (spaghetti), it would not be feasible to adhere to PSR-0 and rename everything, which is somewhat unfortunate for the long-term, with regards to FIG. That being said it’s possible to adopt it for plugins and themes, there is a trac about it here: https://core.trac.wordpress.org/ticket/21300
The WordPress nonce creation function is to be called only on the init hook: Use the init or any subsequent action to call this function. Calling it outside of an action can lead to troubles. See #14024 for details. Since the init hook “runs after WordPress has finished loading but before any headers are sent”, … Read more
On a category page, you can use the function single_cat_title(), or the more generic single_term_title(). These functions pull from the global $wp_query object, via get_queried_object().
Your $scr in your wp_register_script() function is wrong. Given that your functions.php is inside your plugin, and your removeArrows.js is in the root of your plugin, your $scr should look like this plugins_url( ‘/removeArrows.js’ , __FILE__ ) Another point of note, it is always good practice to load your scripts and styles last. This will … Read more