get_post_custom_values example

function the_meta() {
    _deprecated_function( __FUNCTION__, '6.0.2', 'get_post_meta()' );
    $keys = get_post_custom_keys();
    if ( $keys ) {
        $li_html = '';
        foreach ( (array) $keys as $key ) {
            $keyt = trim( $key );
            if ( is_protected_meta( $keyt, 'post' ) ) {
                continue;
            }

            $values = array_map( 'trim', get_post_custom_values( $key ) );
            $value  = implode( ', ', $values );

            $html = sprintf(
                "<li><span class='post-meta-key'>%s</span> %s</li>\n",
                /* translators: %s: Post custom field name. */
                esc_html( sprintf( _x( '%s:', 'Post custom field name' )$key ) ),
                esc_html( $value )
            );

            /** * Filters the HTML output of the li element in the post custom fields list. * * @since 2.2.0 * * @param string $html The HTML output for the li element. * @param string $key Meta key. * @param string $value Meta value. */
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