Direct IO Functions

Introduktion

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: This extension has been moved to the » PECL repository and is no longer bundled with PHP as of PHP 5.1.0.

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

Krav

Inga externa bibliotek behövs för att bygga det tillägg.

Installation

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

Fördefinerade konstanter

Konstanterna nedan defineras av den här utbyggnaden, och kommer bara vara tillgängliga då utbyggnaden kompilerats med PHP eller laddats dynamiskt.

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)

Konfiguration under drift

Den här utbyggnaden definerar inte några konfigurationsdirektiv i php.ini.

Resurstyper

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