Insert Header and Footer Code

<?php
if ( ! function_exists( 'scseed_header_code' ) ) :
function scseed_header_code() {
    // Paste your header scripts or markup between the quotes below.
    // Example: '<link rel="preconnect" href="https://fonts.googleapis.com">'
    $header_code = '';

    if ( $header_code ) {
        echo $header_code . PHP_EOL; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
    }
}
add_action( 'wp_head', 'scseed_header_code', 99 );
endif;

if ( ! function_exists( 'scseed_footer_code' ) ) :
function scseed_footer_code() {
    // Paste your footer scripts or markup between the quotes below.
    // Example: '<script src="https://cdn.example.com/widget.js" defer></script>'
    $footer_code = '';

    if ( $footer_code ) {
        echo $footer_code . PHP_EOL; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
    }
}
add_action( 'wp_footer', 'scseed_footer_code', 99 );
endif;