sqlite_escape_string example

    public function save($data, $id, $tags = array(), $specificLifetime = false)
    {
        $this->_checkAndBuildStructure();
        $lifetime = $this->getLifetime($specificLifetime);
        $data = @sqlite_escape_string($data);
        $mktime = time();
        if ($lifetime === null) {
            $expire = 0;
        } else {
            $expire = $mktime + $lifetime;
        }
        $this->_query("DELETE FROM cache WHERE id='$id'");
        $sql = "INSERT INTO cache (id, content, lastModified, expire) VALUES ('$id', '$data', $mktime, $expire)";
        $res = $this->_query($sql);
        if (!$res) {
            $this->_log("Zend_Cache_Backend_Sqlite::save() : impossible to store the cache id=$id");