Web Standards Programmer's Reference: HTML, CSS, JavaScript®, Perl, Python®, and PHP

Appendix F. PHP Language Reference

This appendix cannot provide an exhaustive list of all of the PHP functions (or it would be hundreds of pages long), but it presents a subset of functions that the authors think you will encounter in your everyday use of PHP along with brief descriptions of what those functions do. The core language functions are included, as well as the functions for PHP extensions that are in popular use.

This appendix is meant as a quick reference for you to check the input and return types of parameters—more of a reminder of how the function works than a verbose description of how to use the function in your scripts. If you need to see how a particular function should be used, or to read up on a function that isn't covered here, check out the PHP documentation online at www.php.net/docs.php.

NOTE

This appendix originally appeared in Beginning PHP 5 written by Dave W. Mercer, Allan Kent, Steven D. Nowicki, David Mercer, Dan Squier, and Wankyu Choi and published by Wrox, ISBN: 0-7645-5783-1, copyright 2004, Wiley Publishing, Inc. The author is grateful to those authors and the publisher for allowing it to be reused here.