Function Name: wp_body_open()
Supported Version: WordPress 5.2+
The function should be placed inside of the tag immediately, see sample code below:
<body <?php body_class(); ?>> <?php wp_body_open(); ?>
Note: this hook should be reserved for output of unseen elements like script tags or meta data.
Backwards Compatibility
<?php
if ( ! function_exists( 'wp_body_open' ) ) {
function wp_body_open() {
do_action( 'wp_body_open' );
}
}