Reads from a file. The bytes argument allows for a set number of bytes to be read, although reading stops if EOF is reached first. The function is binary-safe, allowing it to safely read binary data (such as images or program executables), as well as character data. The data read is returned as a string.
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.
3.0.6: Doesn't work correctly with sockets, Red Hat Linux 6.
3.0.7: Crashes when reading local file on Red Hat Linux 6, kernel 2.2.7.
3.0.9: Delays/hangs on Linux Red Hat 5.2 when reading from sockets.
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.