kloon

// check for clear-cart get param to clear the cart, append ?clear-cart to any site url to trigger this
add_action( 'init', 'woocommerce_clear_cart_url' );
function woocommerce_clear_cart_url() {
	if ( isset( $_GET['clear-cart'] ) ) {
		global $woocommerce;
		$woocommerce->cart->empty_cart();
	}
}

gitaarik

Git Submodules basic explanation

Why submodules?

In Git you can add a submodule to a repository. This is basically a repository embedded in your main repository. This can be very useful. A couple of usecases of submodules:

• Separate big codebases into multiple repositories.

rachelhyman

To create anchor links that jump down to different sections of a README (as in an interactive table of contents), first create a heading:
#Real Cool Heading

The anchor link for that heading is the lowercase heading name with dashes where there are spaces. You can always get the anchor name by visiting the README on Github.com and clicking on the anchor that appears when you hover to the left of the heading. Copy everything starting at the #:
#real-cool-heading

Wherever you want to link to your Real Cool Heading section, put your desired text in brackets, followed by the anchor link in parentheses:
[Go to Real Cool Heading section](#real-cool-heading)

tomysmile

type below:

brew update
brew install redis

To have launchd start redis now and restart at login:

brew services start redis

dianjuar

How to make WordPress a plugin require another plugin?

Put this function on the main php file of your dependent plugin and call it with the rigth parameters.

/**
 * Verify if a plugin is active, if not deactivate the actual plugin an show an error
 * @param  [string]  $my_plugin_name
 *                   The plugin name trying to activate. The name of this plugin
 *                   Ex:

pierrejoubert73

How to add a collapsible section in markdown

1. Example

Click me

Heading

1. Foo
2. Bar
   • Baz

• Qux

lukecav

select
    p.ID as order_id,
    p.post_date,
    max( CASE WHEN pm.meta_key = '_billing_email' and p.ID = pm.post_id THEN pm.meta_value END ) as billing_email,
    max( CASE WHEN pm.meta_key = '_billing_first_name' and p.ID = pm.post_id THEN pm.meta_value END ) as _billing_first_name,
    max( CASE WHEN pm.meta_key = '_billing_last_name' and p.ID = pm.post_id THEN pm.meta_value END ) as _billing_last_name,
    max( CASE WHEN pm.meta_key = '_billing_address_1' and p.ID = pm.post_id THEN pm.meta_value END ) as _billing_address_1,
    max( CASE WHEN pm.meta_key = '_billing_address_2' and p.ID = pm.post_id THEN pm.meta_value END ) as _billing_address_2,
    max( CASE WHEN pm.meta_key = '_billing_city' and p.ID = pm.post_id THEN pm.meta_value END ) as _billing_city,
    max( CASE WHEN pm.meta_key = '_billing_state' and p.ID = pm.post_id THEN pm.meta_value END ) as _billing_state,

imanilchaudhari

Get the information of PHP
==========================
$ sudo apt show php
OR
$ sudo apt show php -a


$ sudo apt install php // this will install default php version ( may be 7.2 )

T0 Install Different Versions Of PHP

TimothyJones

#!/bin/bash -eu
if [ -z "${LIB_ROBUST_BASH_SH:-}" ]; then
  LIB_ROBUST_BASH_SH=included

  function error {
    echo "Error:  ${1:-}"
  }

  # Check to see that we have a required binary on the path
  function require_binary {

kingkool68

<?php
// Put this in wp-config.php and replace https://example.com/ with the URL of the production site.
define( 'RH_USE_REMOTE_MEDIA_URL', 'https://example.com/' );

// Put the rest of this in functions.php or a custom plugin or somewhere else.
if ( defined( 'RH_USE_REMOTE_MEDIA_URL' ) && ! empty( RH_USE_REMOTE_MEDIA_URL ) ) {
	add_filter( 'wp_get_attachment_image_src', 'filter_wp_get_attachment_image_src' );
	add_filter( 'wp_calculate_image_srcset', 'filter_wp_calculate_image_srcset' );
	add_filter( 'wp_get_attachment_url', 'filter_wp_get_attachment_url' );
}