Execute PHP Code in Header

Hi there,

you can use WordPress Conditional tags in your PHP:

https://codex.wordpress.org/Conditional_Tags

Example action hook for conditionally added code to the wp_head:

add_action( 'wp_head', function() {

    if ( is_single() ) {
        // this code will only execute in single posts
    }
    
} );