Clear All Pantheon & WP Caches on post save

functions.php

<?php

// Place snippet in functions.php

// Purge pantheon & wp cache on post save (not suggested for sites with high traffic)
add_action('save_post', function() {
    if ( function_exists( 'pantheon_clear_edge_all' ) ) {
        pantheon_clear_edge_all();
    }
    wp_cache_flush();
}, 1000, 0);