Antonio Blanco eggemplo

## mail.php
<?php
// El mensaje
$mensaje = "Línea 1\r\nLínea 2\r\nLínea 3";

// Si cualquier línea es más larga de 70 caracteres, se debería usar wordwrap()
$mensaje = wordwrap($mensaje, 70, "\r\n");

// Enviarlo
mail('hello@example.com', 'Mi título', $mensaje);
?>

## functions.php
add_shortcode( 'groups_user_groups_id', 'itx_groups_user_groups_id' );
/**
 * Renders the current or a specific user's groups id.
 * Attributes:
 * - "user_id" OR "user_login" OR "user_email" to identify the user, if none given assumes the current user
 * - "format" : one of "list" "div" "ul" or "ol" - "list" and "ul" are equivalent
 * - "list_class" : defaults to "groups"
 * - "item_class" : defaults to "name"
 * - "order_by"   : defaults to "name", also accepts "group_id"
 * - "order"      : default to "ASC", also accepts "asc", "desc" and "DESC"

## affiliates_stored_affiliate.php
add_action( 'affiliates_stored_affiliate', 'connecting_crm_api_affiliates_stored_affiliate', 10, 2 );
function connecting_crm_api_affiliates_stored_affiliate ( $affiliate_id, $affiliate_user_id ) {
  // This function is launched when a new affiliate is created
  // Here you can add your crm api code
  // ....
}

## function.php
add_filter( 'affiliates_check_confirmation_text', 'my_custom_affiliates_check_confirmation_text', 10, 1 );
function my_custom_affiliates_check_confirmation_text( $txt ) {
  return '<p>' . 'Your custom text here'. '</p>';
}

## decent-comments-post-avatar.php
add_filter( 'decent_comments_comments_output', 'random_decent_comments_comments_output', 10, 3 );
function random_decent_comments_comments_output ( $output, $comments, $options ) {

	extract( Decent_Comments_Renderer::$defaults );

	// display options
	if ( isset( $options['avatar_size'] ) ) {
		$avatar_size = intval( $options['avatar_size'] );
	} else {
		$avatar_size = 32;

## functions.php
add_action('add_attachment', 'my_add_attachment');
function my_add_attachment ( $post_id ) {
	$group_ids[] = 2;
	Groups_Post_Access::update( array( 'post_id' => $post_id, 'groups_read' => $group_ids ) );
}

## functions.php
add_action('user_register', 'my_user_register');
function my_user_register( $user_id ) {
   if ( update_user_meta( $user_id, 'groups_newsletters_subscriber', 'yes' ) ) {
			$hash = md5( time() + rand( 0, time() ) );
			$datetime = date( 'Y-m-d H:i:s', time() );
			update_user_meta( $user_id, 'groups_newsletters_hash', $hash );
			update_user_meta( $user_id, 'groups_newsletters_datetime', $datetime );
	}
}

## functions.php
add_action("gform_after_submission", "my_gform_after_submission", 10, 2);

function my_gform_after_submission ( $entry, $form ) {

	$group_name = sanitize_text_field( trim( $entry['1'] ) ); // if the group's name is on the first field

	if ( $group = Groups_Group::read_by_name( $group_name ) ) {
		$group_id = $group->group_id;
	} else {
		$group_id = Groups_Group::create( array( 'name' => $group_name ) );

## functions.php
function ix_change_term_counts( $terms, $taxonomies ) {
	global $wp_query;

	if ( is_admin() || is_ajax() ) {
		return $terms;
	}

	if ( ! isset( $taxonomies[0] ) ) {
		return $terms;
	}

## functions.php
add_action( 'affiliates_referral', 'my_gf_extra_referral_affiliates_referral', 10, 2 );
function my_gf_extra_referral_affiliates_referral ( $referral_id, $info ) {
	if ( $info['type'] == Affiliates_Gravity_Forms::REFERRAL_TYPE ) {

		$description = "Gravity Form extra dollar";
		$amount = 1;
		$currency_id = "USD";
		$affiliate_id = $info['affiliate_id'];
		if ( class_exists( 'Affiliates_Referral_WordPress' ) ) {
			$r = new Affiliates_Referral_WordPress();