36      * @param string $resource A cache key
40     public function has($resource)  argument
42         return file_exists($this->getSourcePath($resource));
48      * @param string $resource A cache key
51     public function set($resource, $value)  argument
53         $path = $this->getSourcePath($resource);
61 …if (false === @file_put_contents($path, sprintf("<?php\n\n// $resource\nreturn %s;\n", var_export(…
71      * @param string $resource A cache key
75     public function get($resource)  argument
77         $path = $this->getSourcePath($resource);
80             throw new \RuntimeException('There is no cached value for '.$resource);
89      * @param string $resource A cache key
93     public function getTimestamp($resource)  argument
95         $path = $this->getSourcePath($resource);
98             throw new \RuntimeException('There is no cached value for '.$resource);
113      * @param string $resource A cache key
117     private function getSourcePath($resource)  argument
119         $key = md5($resource);