Cache.php

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<?php
class Zend_Server_Cache
{
    protected static $_skipMethods = array();

    public static function save($filename, Zend_Server_Interface $server)
    {
        if (!is_string($filename)
            || (!file_exists($filename) && !is_writable(dirname($filename))))
        {
            return false;
        }

        $methods = $server->getFunctions();

        if ($methods instanceof Zend_Server_Definition) {
            $definition = new Zend_Server_Definition();
            foreach ($methods as $method) {
                if (in_array($method->getName(), self::$_skipMethods)) {
                    continue;
                }
                $definition->addMethod($method);
            }
            $methods = $definition;
        }

        if (0 === @file_put_contents($filename, serialize($methods))) {
            return false;
        }

        return true;
    }

    public static function get($filename, Zend_Server_Interface $server)
    {
        if (!is_string($filename)
            || !file_exists($filename)
            || !is_readable($filename))
        {
            return false;
        }


        if (false === ($dispatch = @file_get_contents($filename))) {
            return false;
        }

        if (false === ($dispatchArray = @unserialize($dispatch))) {
            return false;
        }

        $server->loadFunctions($dispatchArray);

        return true;
    }

    public static function delete($filename)
    {
        if (is_string($filename) && file_exists($filename)) {
            unlink($filename);
            return true;
        }

        return false;
    }
}