Direct IO Funções
PHP Manual

dio_write

(PHP 4 >= 4.2.0, PHP 5 <= 5.0.5)

dio_write Writes data to fd with optional truncation at length

Descrição

int dio_write ( resource $fd , string $data [, int $len = 0 ] )

dio_write() writes up to len bytes from data to file fd.

Parâmetros

fd

The file descriptor returned by dio_open().

data

The written data.

len

The length of data to write in bytes. If not specified, the function writes all the data to the specified file.

Valor Retornado

Returns the number of bytes written to fd.

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Direct IO Funções
PHP Manual