Define multiple values in php-function and use them within functions.php - php

Question

Depending on the WordPress blog-URL, I need to define multiple variables (i.e. customer-group IDs). Some of the varaibles are integers and some are arrays. I want to use those variables in differnet functions within functions.php.
I need to know: is my solution good method, if I want to use multiple variables within different functions depending on the blog-URL?
I don’t want to use globals and constants don’t seem to work anymore in PHP-8 like they did in 7.2.
Function I - blog URL:
The variables change, depending on the blog URL. Function could look like this:
add_action( 'after_setup_theme', 'my_site_url' );
function my_site_url(){
$site_url = get_bloginfo('wpurl');
$stage_url = 'https://los.examplos.mx';
if ($site_url == $stage_url) {
/* - customer group ids for use in functions */
$wiederverkaeufer = 1234;
/* Versteckte Kategorien */
$hidecategory_wvk = [24, 863, 51, 87];
$return_array = [$wiederverkaeufer, $hidecategory_wvk];
} else {
/* - customer group ids for use in functions */
$wiederverkaeufer = 5678;
/* Versteckte Kategorien */
$hidecategory_wvk = [51, 48, 42];
$return_array = [$wiederverkaeufer, $hidecategory_wvk];
}
return $return_array;
}
Function II
Now I want to access those variables with some of the other functions within my functions.php. (This worked with constants before). For example
add_action( 'woocommerce_before_calculate_totals', 'cart_shipping_class_message', 20, 1 );
function cart_items_shipping_class_message( $cart ){
$my_ids = my_site_url();
$my_ids[0] = $wiederverkaeufer;
// Customer group current user
$group_id = BM_Conditionals::get_validated_customer_group();
// if is group "wiederverkaeufer" return
if ( $wiederverkaeufer == $group_id )
return;
//Do something
}
Function III: Test function:
I built a little test-function to check if I can call multiple variables and arrays from one function.
function my_shop_meldung(){
$a = "Moin";
$b = "Servus";
$c = "Hallo";
$d = ["22", "44", "55"];
$return_array = [$a, $b, $c, $d];
return $return_array;
}
function add_custom_text() {
?>
<div id="my_shopmeldung">
<?php
$my_results = my_shop_meldung();
$a = $my_results[0];
$b = $my_results[1];
$c = $my_results[2];
$d = $my_results[3][1];
//echo $a . $b . $c . $d;
echo $d;
?>
</div>
<?php
}
add_action('kt_beforeheader', 'add_custom_text', 10, 0);
I think this works as I could see the output "44" from the array.

Answer 1

Works for me:
This function shows product categories in WordPress Woocommerce, depending on the "MarketPress" customer group. Please note: this example will work only if you use the plugin Marketpress.
Function 1:
//add_action( 'wp_enqueue_scripts', 'my_site_url' );
add_action( 'after_setup_theme', 'my_site_url' );
function my_site_url(){
$site_url = get_bloginfo('wpurl');
//$site_url = get_home_url();
$stage_url = 'https://los.examplos.dk';
$stage_url_2 = 'https://los.examplos.dk';
//global $wiederverkaeufer, $hidecategory_wvk, $hidecategory_customer,
$boxkategorien, $gast_id, $kunde_id;
if ($site_url == $stage_url || $site_url == $stage_url_2 ) {
/* CONSTANTS - customer group ids for use in functions */
$wiederverkaeufer = 11111;
$gast_id = 22222;
$kunde_id = 33333;
/* Versteckte Kategorien */
$hidecategory_wvk = [11, 22, 33, 44];
$hidecategory_customer = [11, 22, 33, 44];
/* BOXEN */
$boxkategorien = = [11, 22, 33, 44];
} else {
/* CONSTANTS - customer group ids for use in functions */
$wiederverkaeufer = 3333;
$gast_id = 4444;
$kunde_id = 5555;
/* Versteckte Kategorien */
$hidecategory_wvk = = [11, 22, 33, 44];
$hidecategory_customer = = [11, 22, 33, 44];
/* BOXEN */
$box_kategorien = = [11, 22, 33, 44];];
}
$return_array = [
$wiederverkaeufer,
$gast_id,
$kunde_id,
$hidecategory_wvk,
$hidecategory_customer,
$boxkategorien
];
return $return_array;
}
Function II
Hide Woocommerce product categories depending on MarketPress customer group.
Vustomer group identified via "$group_id = BM_Conditionals::get_validated_customer_group();"
add_filter( 'get_terms', 'exclude_cats_from_shop', 10, 3 );
function exclude_cats_from_shop($terms, $taxonomies, $args ){
if ( is_admin() && ! defined('DOING_AJAX') )
return $terms;
$group_id = BM_Conditionals::get_validated_customer_group();
//get the customer group ID of current user
$customer_group = my_site_url();
//call function my_site_url(), get the array, and save to $customer_group
$wiederverkaeufer = $customer_group[0];
//save customer group id to $wiederverkaeufer
$hidecategory_wvk = $customer_group[3];
$hidecategory_customer = $customer_group[4];
//get those product group ids
if ( $wiederverkaeufer == $group_id ){
//if wiederverkaeufer
$new_terms = array();
//$hide_category_wvk = HIDECATEGORY_WVK;
// Ids der Produktkategorien die ausgeschlossen werden sollen
if ( in_array( 'product_cat', $taxonomies ) && is_shop() || is_product() ) {
foreach ( $terms as $key => $term ) {
if ( ! in_array( $term->term_id, $hidecategory_wvk ) ) {
$new_terms[] = $term;
}
}
$terms = $new_terms;
}
return $terms;
}// Ende ist Wiederverkaeufer
// if is customer group customer
else {
$new_terms = array();
// hide productcategories
if ( in_array( 'product_cat', $taxonomies ) && is_shop() || is_product() ) {
foreach ( $terms as $key => $term ) {
if ( ! in_array( $term->term_id, $hidecategory_customer ) ) {
$new_terms[] = $term;
}
}
$terms = $new_terms;
}
return $terms;
}
} //End