filters - Read For Learn

How to reorder billing fields in WooCommerce Checkout template? [closed]

Same can be done through functions.php in your (child) theme: add_filter(“woocommerce_checkout_fields”, “order_fields”); function order_fields($fields) { $order = array( “billing_first_name”, “billing_last_name”, “billing_company”, “billing_address_1”, “billing_address_2”, “billing_postcode”, “billing_country”, “billing_email”, “billing_phone” ); foreach($order as $field) { $ordered_fields[$field] = $fields[“billing”][$field]; } $fields[“billing”] = $ordered_fields; return $fields; }

Gutenberg: Is there a way to know if current block is inside InnerBlocks?

getBlockParents will work accurately. You can use getBlockParents with the clientId of the block, getBlockParents will return the all parent blocks id if the current block is under any Blocks. It will return blank if current block is not under any Block here is a method that you can use: const innerBlock = “namespace/block-name”; const … Read more

Explanation for apply_filters function and its variables

That line is using two different functions that need two separate explanations. __() This is a translation function. If the settings are done right, it will translate the first parameter from a list of pre-translated strings. If an installation has a file with a compiled translation for this function to use, it will use it. … Read more

what is __return_false in filters

WordPress contains built in functions for quickly returning values. They are intended to be used as a quick built in function that returns a common value to a filter hook such as true, false, or an empty array. __return_false — Returns the Boolean value of false. __return_true — Returns the Boolean value of true. __return_empty_array … Read more

Remove classes from body_class

You can configure the $whitelist array in this function to filter out all other unwanted classes. add_filter( ‘body_class’, ‘wpse15850_body_class’, 10, 2 ); function wpse15850_body_class( $wp_classes, $extra_classes ) { // List of the only WP generated classes allowed $whitelist = array( ‘portfolio’, ‘home’, ‘error404’ ); // Filter the body classes $wp_classes = array_intersect( $wp_classes, $whitelist ); … Read more

Add custom options to the wplink dialog

The dialog HTML comes from WP_Editors::wp_link_dialog() but no hooks in there. We could instead use jQuery to append the custom HTML to the link dialog and try to override e.g. the wpLink.getAttrs(), because it’s very short 😉 Demo example: jQuery( document ).ready( function( $ ) { $(‘#link-options’).append( ‘<div> <label><span>Link Class</span> <select name=”wpse-link-class” id=”wpse_link_class”> <option value=”normal”>normal</option> … Read more

How can I modify the WordPress default widget output?

To expand on Mark’s answer, there’s not much (generally) available in the way of filters in the default WordPress widgets (except for perhaps widget_text). But adding your own custom widget is easy – put this in your functions.php: require_once(“my_widget.php”); add_action(“widgets_init”, “my_custom_widgets_init”); function my_custom_widgets_init(){ register_widget(“My_Custom_Widget_Class”); } Then you simply want to copy the existing categories widget … Read more

How would one modify the filtering Gutenberg applies to pasted content?

In my blocks.js , located in wp-includes/js/dist/ I find the RemoveInvalidHTML function, which seems to responsible for removing styles from pasted HTML. /** * Given a schema, unwraps or removes nodes, attributes and classes on HTML. * * @param {string} HTML The HTML to clean up. * @param {Object} schema Schema for the HTML. * … Read more

What is the very earliest action hook you can call?

muplugins_loaded is the earliest hook. Depending on your wordpress setup, you may not have any plugins in the MU_PLUGINS directory. In that case this hook may not fire. The next best hook to trigger is plugins_loaded. RESOURCES WordPress Codex – Action Reference List Q/A: How to get WordPress’ hook run sequence? Q/A: Make sense of … Read more

Trouble understanding apply_filters()

Try to see the function with better names: apply_filters( $filter_name, // used for add_filter( $filter_name, ‘callback’ ); $value_to_change, // the only variable whose value you can change $context_1, // context $context_2 // more context ); So when that function is called as: // wp-login.php line 94 apply_filters( ‘login_body_class’, $classes, $action ); You can use … … Read more

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