Smilies: Add the smilies filter.

This new filter allows the smilies array to be modified with a filter, instead of having to directly access the global.

Props mte90, jorbin.
Fixes #35905.



git-svn-id: https://develop.svn.wordpress.org/trunk@38504 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/functions.php

@@ -3342,6 +3342,18 @@ function smilies_init() {
 		);
 	}
 
+	/**
+	 * Filter all the smilies.
+	 *
+	 * This filter must be added before `smilies_init` is run, as
+	 * it is normally only run once to setup the smilies regex.
+	 *
+	 * @since 4.6.0
+	 *
+	 * @param array $wpsmiliestrans List of the smilies.
+	 */
+	$wpsmiliestrans = apply_filters('smilies', $wpsmiliestrans);
+
 	if (count($wpsmiliestrans) == 0) {
 		return;
 	}