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# dio_write

(PHP 4 >= 4.2.0)

dio_write -- Writes data to fd with optional truncation at length

## Description

int dio_write ( resource fd, string data [, int len])

The function dio_write() writes up to `len` bytes from `data` to file `fd`. If `len` is not specified, dio_write() writes all `data` to the specified file. dio_write() returns the number of bytes written to `fd`.

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