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readfile

(PHP 4, PHP 5)

readfile — Outputs a file

Description

int readfile ( string $filename [, bool $use_include_path [, resource $context ]] )

Reads a file and writes it to the output buffer.

Parameters

filename

The filename being read.

use_include_path

You can use the optional second parameter and set it to TRUE, if you want to search for the file in the include_path, too.

context

A context stream resource.

Return values

Returns the number of bytes read from the file. If an error occurs, FALSE is returned and unless the function was called as @readfile(), an error message is printed.

Notes

Tip

Tämän funktion kanssa voit käyttää myös URLia tiedostonimen sijaan jos "fopen wrappers" on kytketty päälle. Katso funktiosta fopen() lisätietoa tuetuista URL-protokollista ja siitä kuinka tiedoston nimi määritellään List of Supported Protocols/Wrappers.

Note: Context support was added with PHP 5.0.0. For a description of contexts, refer to Streams.