[WordPress] [WP Super Cache] Manually clear the cache from the code

wpsc-clear-cache.php

<?php
/**
 * Clear the cache on specific page
 */
if ( function_exists( 'wp_cache_post_change' ) ) {
    $GLOBALS["super_cache_enabled"] = 1;
    wp_cache_post_change( $post_id );
}

/**
 * Clear all cache
 */
if ( function_exists( 'wp_cache_post_change' ) ) {
    wp_cache_clear_cache();
}