WP_Theme_JSON::append_to_selector() WordPress Method

This function allows you to append a string to the theme's CSS selector. This is useful if you want to add extra CSS to the theme, but don't want to override the theme's existing styles.

WP_Theme_JSON::append_to_selector( string $selector, string $to_append ) #

Function that appends a sub-selector to a existing one.

Description
Parameters
Return
Source
Changelog

Description

Given the compounded $selector "h1, h2, h3" and the $to_append selector ".some-class" the result will be "h1.some-class, h2.some-class, h3.some-class".

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Parameters

$selector: (string)(Required)Original selector.
$to_append: (string)(Required)Selector to append.

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Return

(string)

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Source

File: wp-includes/class-wp-theme-json.php

protected static function append_to_selector( $selector, $to_append ) {
    $new_selectors = array();
    $selectors     = explode( ',', $selector );
    foreach ( $selectors as $sel ) {
        $new_selectors[] = $sel . $to_append;
    }
 
    return implode( ',', $new_selectors );
}