The Swoole\Mmap class (PECL swoole >= 1.9.0) 简介 类摘要 class Swoole\Mmap { /* 方法 */ public static open(string $filename, string $size = ?, string $offset = ?): ReturnType } 目录Swoole\Mmap::open — Map a file into memory and return the stream resource which can be used by PHP stream operations.