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Latest Version [8.00202205221] Last Updated [May-22-2022]

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PHP Manual [eio_read]

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PHP Manual || Eio Functions

(PECL eio >= 0.0.1dev)

eio_readRead from a file descriptor at given offset

Description

eio_read ( mixed $fd , int $length , int $offset , int $pri , callable $callback [, mixed $data = NULL ] ) : resource

eio_read() reads up to length bytes from fd file descriptor at offset. The read bytes are stored in result argument of callback.

Parameters

fd

Stream, Socket resource, or numeric file descriptor

length

Maximum number of bytes to read.

offset

Offset within the file.

pri

The request priority: EIO_PRI_DEFAULT, EIO_PRI_MIN, EIO_PRI_MAX, or NULL. If NULL passed, pri internally is set to EIO_PRI_DEFAULT.

callback

callback function is called when the request is done. It should match the following prototype:

void callback(mixed $data, int $result[, resource $req]);


PHP Manual || Eio Functions