Forum und email

Direct IO Functions

Introductie

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

Afhankelijkheden

Deze functies zijn beschikbaar als onderdeel van de standaard module die altijd beschikbaar is.

Installatie

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

Voorgedefinieerde constanten

Deze constanten worden gedefinieerd door deze extensie, en zullen alleen beschikbaar zijn als de extensie met PHP is meegecompileerd, of als deze dynamisch is geladen vanuit een script.

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)

Configuratie tijdens scriptuitvoer

Deze extensie gebruikt geen configuratie regels.

Resource types

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

Table of Contents

  • dio_close — Closes the file descriptor given by fd
  • dio_fcntl — Performs a c library fcntl on fd
  • dio_open — Opens a new filename with specified permissions of flags and creation permissions of mode
  • dio_read — Reads bytes from a file descriptor
  • dio_seek — Seeks to pos on fd from whence
  • dio_stat — Gets stat information about the file descriptor fd
  • dio_tcsetattr — Sets terminal attributes and baud rate for a serial port
  • dio_truncate — Truncates file descriptor fd to offset bytes
  • dio_write — Writes data to fd with optional truncation at length