Direct IO Functions

簡介

PHP supports the direct io functions as described in the Posix Standard (Section 6) for performing I/O functions at a lower level than the C-Language stream I/O functions (fopen(), fread(),..). The use of the DIO functions should be considered only when direct control of a device is needed. In all other cases, the standard filesystem functions are more than adequate.

Note: 本擴充功能已被移動到 » PECL 函式庫中且自以下版本起不再被包含到 PHP 中：5.1.0.

This extension is only available on Windows Platforms as of PHP 5.0.0

需求

要編譯本擴充功能無需外部函式庫。

安裝

To get these functions to work, you have to configure PHP with --enable-dio.

預設常數

以下常數由擴充功能定義，因此只有在擴充功能被編譯到 PHP 中，或者在執行時被動態載入後才有效。

c (integer)

F_DUPFD (integer)

F_GETFD (integer)

F_GETFL (integer)

F_GETLK (integer)

F_GETOWN (integer)

F_RDLCK (integer)

F_SETFL (integer)

F_SETLK (integer)

F_SETLKW (integer)

F_SETOWN (integer)

F_UNLCK (integer)

F_WRLCK (integer)

O_APPEND (integer)

O_ASYNC (integer)

O_CREAT (integer)

O_EXCL (integer)

O_NDELAY (integer)

O_NOCTTY (integer)

O_NONBLOCK (integer)

O_RDONLY (integer)

O_RDWR (integer)

O_SYNC (integer)

O_TRUNC (integer)

O_WRONLY (integer)

S_IRGRP (integer)

S_IROTH (integer)

S_IRUSR (integer)

S_IRWXG (integer)

S_IRWXO (integer)

S_IRWXU (integer)

S_IWGRP (integer)

S_IWOTH (integer)

S_IWUSR (integer)

S_IXGRP (integer)

S_IXOTH (integer)

S_IXUSR (integer)

執行時期設定

本擴充功能在 php.ini 中未定義任何設定選項。

資源類型

One resource type is defined by this extension: a file descriptor returned by dio_open().