bmakowski

<?php
function my_hide_shipping_when_free_is_available( $rates ) {
	$free = array();
	foreach ( $rates as $rate_id => $rate ) {
		if ( 'free_shipping' === $rate->method_id ) {
			$free[ $rate_id ] = $rate;
			break;
		}
	}
	return ! empty( $free ) ? $free : $rates;

bmakowski

<?php
add_action( 'wp_logout', create_function( '', 'wp_redirect( home_url() ); exit();') );

bmakowski

<?php

/*
Example 1 - custom post type without category
Author: Bartek Makowski
*/

//inside wp-content/themes/{template}/functions.php

function create_post_type() {

bmakowski

<?php

/*
Example 1 - overriding default navigation widget to use walker
Author: Bartek Makowski
*/

//inside wp-content/themes/{template}/functions.php

class LMU_WP_Nav_Menu_Widget extends WP_Nav_Menu_Widget{

bmakowski

<?php

/*
  WP All Import DB Fix for showing incorrect users number
  on WP Dashboard
  Author: Bartek Makowski
 */

//inside main wordpress folder

bmakowski

<?php

/*
Custom Placeholder Image - shows when product hasn't got an image
Author: Bartek Makowski
*/

//inside wp-content/themes/{template}/functions.php

add_action('init', 'custom_fix_thumbnail');

bmakowski

<?php
function action_woocommerce_calculate_totals( ) { 
    global $woocommerce;
    
    $woocommerce->cart->shipping_tax_total = 0;
}; 

add_action( 'woocommerce_calculate_totals', 'action_woocommerce_calculate_totals', 10, 1 ); 

bmakowski

https://pl.wordpress.org/plugins/custom-list-table-example/

bmakowski

<?php

if( !preg_match('/^(?!\-)(?:[a-zA-Z\d\-]{0,62}[a-zA-Z\d]\.){1,126}(?!\d+)[a-zA-Z\d]{1,63}$/', $domain) ){
  // didn't match return error
  return false;
}

bmakowski

This allows only domains with "." for example "example.com"
^(?!\-)(?:[a-zA-Z\d\-]{0,62}[a-zA-Z\d]\.){1,126}(?!\d+)[a-zA-Z\d]{1,63}$

This allows also one-name domains like "localhost". "." is optional
^(?!\-)(?:[a-zA-Z\d\-]{0,62}[a-zA-Z\d]\.?){1,126}(?!\d+)[a-zA-Z\d]{1,63}$