<?php
// Globals.
global $acf_stores, $acf_instances;
// Initialize plaeholders.
$acf_stores = array();
$acf_instances = array();
/**
* acf_new_instance
*
* Creates a new instance of the given class and stores it in the instances data store.
*
* @date 9/1/19
* @since 5.7.10
*
* @param string $class The class name.
* @return object The instance.
*/
function acf_new_instance( $class = '' ) {
global $acf_instances;
return $acf_instances[ $class ] = new $class();
}
/**
* acf_get_instance
*
* Returns an instance for the given class.
*
* @date 9/1/19
* @since 5.7.10
*
* @param string $class The class name.
* @return object The instance.
*/
function acf_get_instance( $class = '' ) {
global $acf_instances;
if( !isset($acf_instances[ $class ]) ) {
$acf_instances[ $class ] = new $class();
}
return $acf_instances[ $class ];
}
/**
* acf_register_store
*
* Registers a data store.
*
* @date 9/1/19
* @since 5.7.10
*
* @param string $name The store name.
* @param array $data Array of data to start the store with.
* @return ACF_Data
*/
function acf_register_store( $name = '', $data = false ) {
// Create store.
$store = new ACF_Data( $data );
// Register store.
global $acf_stores;
$acf_stores[ $name ] = $store;
// Return store.
return $store;
}
/**
* acf_get_store
*
* Returns a data store.
*
* @date 9/1/19
* @since 5.7.10
*
* @param string $name The store name.
* @return ACF_Data
*/
function acf_get_store( $name = '' ) {
global $acf_stores;
return isset( $acf_stores[ $name ] ) ? $acf_stores[ $name ] : false;
}
/**
* acf_switch_stores
*
* Triggered when switching between sites on a multisite installation.
*
* @date 13/2/19
* @since 5.7.11
*
* @param int $site_id New blog ID.
* @param int prev_blog_id Prev blog ID.
* @return void
*/
function acf_switch_stores( $site_id, $prev_site_id ) {
// Loop over stores and call switch_site().
global $acf_stores;
foreach( $acf_stores as $store ) {
$store->switch_site( $site_id, $prev_site_id );
}
}
add_action( 'switch_blog', 'acf_switch_stores', 10, 2 );
/**
* acf_get_path
*
* Returns the plugin path to a specified file.
*
* @date 28/9/13
* @since 5.0.0
*
* @param string $filename The specified file.
* @return string
*/
function acf_get_path( $filename = '' ) {
return ACF_PATH . ltrim($filename, '/');
}
/**
* acf_get_url
*
* Returns the plugin url to a specified file.
* This function also defines the ACF_URL constant.
*
* @date 12/12/17
* @since 5.6.8
*
* @param string $filename The specified file.
* @return string
*/
function acf_get_url( $filename = '' ) {
if( !defined('ACF_URL') ) {
define( 'ACF_URL', acf_get_setting('url') );
}
return ACF_URL . ltrim($filename, '/');
}
/*
* acf_include
*
* Includes a file within the ACF plugin.
*
* @date 10/3/14
* @since 5.0.0
*
* @param string $filename The specified file.
* @return void
*/
function acf_include( $filename = '' ) {
$file_path = acf_get_path($filename);
if( file_exists($file_path) ) {
include_once($file_path);
}
}