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dio_open
Opens a new filename with specified permissions of flags and
creation permissions of mode
(PHP 4 >= 4.2.0, PHP 5 <= 5.0.5)
resource dio_open ( string filename, int flags [, int mode] )
dio_open() opens a file and returns a new file descriptor for it.
Parameters
- 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_CREATandO_EXCLare 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.
Examples
Example 500. Opening a file descriptor
<?php
$fd = dio_open('/dev/ttyS0', O_RDWR | O_NOCTTY | O_NONBLOCK);
dio_close($fd);
?>| dio_close() |