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dio_open

(PHP 4 >= 4.2.0)

dio_open --  Opens a new filename with specified permissions of flags and creation permissions of mode

Description

resource dio_open ( string filename, int flags [, int mode])

dio_open() opens a file and returns a new file descriptor for it, or FALSE if any error occurred. If flags is O_CREAT, the optional third parameter mode will set the mode of the file (creation permissions). The flags parameter can be one of the following options:

  • 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.

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.

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