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mcal_popen — Open a persistent MCAL stream to a calendar


int mcal_popen(calendar, user, password[, options]);
string calendar: The calendar address
string user: The username to log in as
string password: The password to log in with
int options (optional): A bitmask of flags for future expansion


A persistent MCAL stream on success, FALSE on error


mcal_popen() is exactly the same as mcal_open() except that it uses PHP's persistent resource management to keep the calendar connection open between requests. This can increase performances in some cases. You should always do performance tests in your enviroment to find out what works best for you, but in general, if you have a large number of requests to a set of scripts which use a small set of calendars, persistent connections will improve performance. If your scripts are instead using a large number of different calendars, then persistent connections are more likely to be a waste and even to hurt performance.


PHP 3 since 3.0.13, PHP 4 since 4.0b4


Example 729. Opening a persistent MCAL connection

// Open a persistent connection to an mstore calendar.
$calendar = "{/mstore}";
$MCALconnection = mcal_popen($calendar, "username", "password");

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 The authors of this book have elected not to choose any options under the OPL. This online book was obtained from 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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