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dio_open(PHP 4 >= 4.2.0, PHP 5 <= 5.0.4) dio_open --
Opens a new filename with specified permissions of flags and
creation permissions of mode
Описаниеresource dio_open ( string filename, int flags [, int mode] )
dio_open() opens a file and returns a new file
descriptor for it.
Список параметров
- filename
The opened file.
- flags
The flags parameter can also include any
combination of the following flags:
O_CREAT - creates the file, if it doesn't
already exist.
O_EXCL - if both, O_CREAT
and O_EXCL are set, dio_open()
fails, if the file already exists.
O_TRUNC - if the file exists, and its opened
for write access, the file will be truncated to zero length.
O_APPEND - write operations write data at the
end of the file.
O_NONBLOCK - sets non blocking mode.
- mode
If flags is O_CREAT,
mode will set the mode of the file
(creation permissions).
O_RDONLY - opens the file for read access.
O_WRONLY - opens the file for write access.
O_RDWR - opens the file for both reading and
writing.
Возвращаемые значения
A file descriptor or FALSE on error.
ПримерыПример 1. Opening a file descriptor
<?php
$fd = dio_open('/dev/ttyS0', O_RDWR | O_NOCTTY | O_NONBLOCK);
dio_close($fd);
?>
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