readfile
Name
readfile — Send the contents of a file to stdout
Synopsis
int readfile(filename);
string filename:
Returns
Bytes read; FALSE on error
Description
readfile() outputs the contents of a file directly
to standard output. If PHP has been configured to be
URL-aware, prefixing the filename with either
http://orftp://opens a connection to
the specified URL. Note that since the PHP URL wrappers
don't support redirects, you have to append a trailing
slash to directories. FTP connections must be made to
servers with support for passive mode transfers.
Because some of the filesystem functions to read/write
from files partially share the same code, one or more
of the bugs reported elsewhere may also apply to this
function.
3.0.8: Crashes when used with URLs on FreeBSD 3.2.
3.0.8, 3.0.9: Successive calls on URLs don't work on
Solaris 2.5.1/Apache 1.3.6.
3.0.12: Reported not to retrieve all content (only
about the first 1400 bytes) from some web servers,
Linux 2.2.10 (not verified).
Example
Example 343. Dump a file two
ways
// two ways to the same file
$file = "/home/user/myfile.txt";
$http_file = "http://host.com/~user/myfile.txt";
echo (readfile($file));
echo (readfile($http_file));
PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing
(Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch).
This material may be distributed only subject to the terms and conditions set forth
in the Open Publication License, v1.0 or later (the latest version is presently available at
http://www.opencontent.org/openpub/).
The authors of this book have elected not to choose any options under the OPL. This online book was obtained
from
http://www.fooassociates.com/phpfer/
and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4
for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All
persons and entities shall have neither liability nor responsibility to any person or entity with respect to
any loss or damage arising from the information contained in this book.
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