asknicelycache.php

<?php
    /**
     * This is simple caching function for PHP, that save the contents from a URL and store it on desk. 
     * It uses the file last modified date to figure out when to expire the cache.
     * 1. Update the SCHEMA URL to your AskNicely Schema URL
     * 2. You might want to update the cache file location, PHP will need write access to the cache location. 
     */
    function getAskNicelySchema($cacheHours = 4){
        
        $schemaURL = "https://reviews.asknicely.site/reviews/test/schema";  //  #1 PLEASE UPDATE TO THE CORRECT URL 
        $cacheFileName = __DIR__."/schema.json";                            //  #2 THIS WILL CACHE THE FILE IN THE SAME FOLDER AS YOU PHP SCRIPT. 
        if (!file_exists($cacheFileName) || (time() - filemtime($cacheFileName) > $cacheHours * 3600) /*4 hours by default*/
            
        ) {
           $body =  file_get_contents($schemaURL);
           file_put_contents($cacheFileName, $body);
        }
        return "<script type='application/ld+json'>".file_get_contents($cacheFileName)."</script>";  // USE THIS CONTENT FOR YOUR HTML PAGE. 
    }
 
    echo getAskNicelySchema();