Updating php[world] 2018 dates, and updated 2019 events with correct …

README.md

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 This page list all known PHP and PHP related conferences. If we have missed one, fork the [DevZone Conference List](https://github.com/zendtech/devzone_conference_list) repo and read the Contributing guide.
 
 ## North America
-* [ZendCon](http://zendcon.com) : October 23-26, 2017 : Las Vegas, NV US
-With over 250 million PHP applications driven by a global community of more than 5 million active developers and 100% of enterprises adopting open source software, ZendCon 2017 brings you a curated selection of the best experts, training, and networking opportunities to embrace this vast ecosystem. In its 13th year, ZendCon offers authoritative sessions, in-depth technical tutorials, exhibit hall activities, and informal opportunities to spotlight the best in enterprise PHP and open source development, focusing on the latest for PHP 7, the evolution of frameworks and tools, API excellence, and innovations on many open source technologies related to the web.
-
-* [php[world] 2017](https://world.phparch.com/) : November 15-16, 2017 : Washington, D.C. US
+* [php[world] 2018](https://world.phparch.com/) : November 14-15, 2018 : Washington, D.C. US
  PHP as a language and a community has been rapidly changing in the last few years. A staggering 82% of the Web runs on PHP, and those websites are built on frameworks such as Drupal, WordPress, Magento, Symfony, ZF and Laravel, each of which has their own strong community. We created a conference designed to appeal to all these communities and bring them together. Hence, php[world] was born. An event intended to bring the entire world of PHP together in one place, to encourage cross-pollination of ideas and sharing of ideals.
 
-* [SunshinePHP 2018](http://2018.sunshinephp.com/) : February 8-10, 2018 : Miami, Florida  
+* [SunshinePHP 2019](http://2019.sunshinephp.com/) : February 7-9, 2019 : Miami, Florida  
 The SunshinePHP Developer Conference is hosted by the South Florida PHP community (SoFloPHP). We'll host some of the best speakers, awesome talk topics, latest technologies, and up to date news in PHP. And don't forget our Hack-a-thon and Uncon'ference, as well as a great hallway track! The conference has something for every level of PHP developer. We start on February 8th with a full day of 8 PHP related tutorials and workshops that are each 3 hours of in-depth information. Next we follow that with 2 days on February 9th and 10th containing 5 keynotes and 40 PHP talks over 4 tracks.
 
-* [Midwest PHP 2018](https://2018.midwestphp.org/) : March 9-10, 2018 : Bloomington, MN US
+* [Midwest PHP 2019](https://2019.midwestphp.org/) : March 8-9, 2019 : Bloomington, MN US
 Midwest PHP is the FUN conference. This is our fifth annual conference, and each year it gets better and better. Our goal is to share best practices, ideas, and techniques about building state-of-the-art software applications. The conference is at the Radisson Blu Mall of America. We can't think of a better place to connect with friends, old and new, than in a relaxed environment with entertainment at your front door, and inspiring talks from people doing amazing things.
 
-* [Longhorn PHP Conference](https://www.longhornphp.com/) : April 19-21, 2018 : Austin, TX US
+* [Longhorn PHP Conference](https://www.longhornphp.com/) : May 2-4, 2019 : Austin, TX US
 Our main goal as a conference is to equip attendees to be better developers. If you work with developers or alongside developers, we’ll showcase tools and techniques to level up your ability to solve the problems you face every day. You’ll get to learn from and alongside a diverse group of developers from all over the region, country, and even the globe. Whether you’re a junior developer or an experienced programmer, you’ll be learning alongside your peers. You’ll get direct access to experts in all aspects of modern web development: security, programming techniques, devops, architecture, database administration, and more.
 
 ## South America