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Tera WURFL: Get mobile device capabilities from WURFL+MySQL

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tera_wurfl 1.5.2GNU General Publi...4.1Databases, Wireless and Mobile
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This package can accurately detect over 100 capabilities of mobile devices - from ringtone support to image formats to screen resolution, Java support, Flash Lite and more! By loading the Wireless Universal Resource File (WURFL) into a MySQL database and implementing a smart caching system, Tera-WURFL is able to provide high-speed results. Tera-WURFL also includes an XML webservice for querying the database from other languages, and mobile device image support, so you can show your clients an image of their device. With support for PHP4.1-PHP5.x, Tera-WURFL has gained the interest of the official WURFL team, and can be found on their website at

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Name: Steve Kamerman <contact>
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Tera-WURFL README Version Stable 1.5.2 ----------------------- New in 1.5.2 ---> the $wurflObj->getDeviceCapabilitiesFromAgent() function now returns boolean true or false. This tells you whether there was a match (true) or not (false). In previous versions you had to check if the capabilities array contained usable data. ALSO, two new config options are available: * MATCH_TO_UA_PREFIX boolean, if true, matching will stop if the user agent prefix cannot be matched. The user agent prefix is everything from the beginning of the UA to the first '/', like "SonyEricssonK700i". If this is not matched in the WURFL, there searching will stop. * RETURN_GENERIC boolean, if true, the user agent and accept headers will be used to determine if this device is wireless or not and the capabilities array will be populated with approporiate generic data. This IS considered a match. Set this to false to stop getting generic matches. Tera-WURFL 1.5.2+ includes an XML webservice file called webservice.php it is currently a BETA feature, but it should to be pretty fail-safe. Information on this features usage is included in the webservice.php file. Tera-WURFL 1.5.x includes a high speed caching system. This means that if you are upgrading, you will see that another table will be created to store the cached results of your past queries. This system has been tested on some very high traffic sites and is said to have increased performance dramatically! "The system gets over 2 million WAP hits per day ... The impact on the server is definitely significant. Before this, mysqld was using between 20% and 40% of the CPU, and now it's down to 6% or less. Load average on the box was averaging 3.84 before, and now it's averaging 2.72." JUST GET ME TO THE INSTALLATION! Ok, it took me a lot longer to write this then it will take you to read it, so please read EVERYTHING from INSTALLATION on. Feel free to email me if you need help with anything, or to request new features! ABOUT TERA-WURFL Tera-WURFL is a PHP & MySQL based library that uses the Wireless Universal Resource File (WURFL). The WURFL website nicely defines the WURFL as follows: "The WURFL is an "ambitious" configuration file that contains info about all known Wireless devices on earth. Of course, new devices are created and released at all times. While this configuration file is bound to be out of date one day after each update, chances are that the WURFL lists all of the WAP devices you can purchase in the nearest shops." Tera-WURFL is loosely based on the original PHP Tools Library by Andrea Trasatti and serves as a drop in replacement with only minor changes to your existing code. Since Tera-WURFL uses a MySQL database backend, the real world performace increase over the existing PHP Tools (with multicache) implementation is extremely high - normally between 5x and 10x faster! The author of Tera-WURFL is Steve Kamerman, a professional PHP Programmer, MySQL DBA, Flash/Actionscript/Javascript Developer and Linux Administrator. This project is financially sponsored by Tera Technologies and was originally an internal project used for delivering content to customers of the mobile ringtone and image creation site Read more about Tera-WURFL and download the latest release at: See what else Steve Kamerman has cookin' at his blog: INSTALLATION 1. Copy the files into a directory on your webserver that can be accessed from the internet. For the purposes of explaination I will refer to this location as "", with a local directory of "/var/www/tera_wurfl/". 2. Open a web browser and go to: "" you should see the "Tera-WURFL Installation" page with a bunch of errors on it. The next steps will show you how to correct these errors. You can refresh this page to verify that your changes have taken effect. CONFIGURATION FILE 3. Edit the tera_wurfl_config.php file. a. Make sure WURFL_PATCH_ENABLE is set to true if you want to use the included web_browsers.xml patch file. You will need this patch to determine whether the visitor is using a wireless device or a desktop web browser. b. Make sure the DB_EMPTY METHOD is set to "DROP_CREATE" - this will automatically create the database tables for you. c. The rest of this guide will refer to this file for configuration instructions. FILE PERMISSIONS 4. If you downloaded the "Lite" version of Tera-WURFL, the wurfl.xml file is not included in the package. You will see a warning in the install script telling you that it cannot be accessed. This is ok, since you will still be able to update it from the WURFL website. 5. By default, the DATADIR is set to "data/". This directory holds the wurfl.xml file, your patch file(s) and the log file. This directory and EVERYTHING in it needs to be accessible (read+write) by the user that runs your webserver. This is normally "apache", "www-data" or "nobody" in Linux. (chown -R apache:apache ./data/) 6. Verify that the permissions errors on the installation page are fixed by refreshing the browser. DATABASE OPTIONS 7. Create a new database for Tera-WURFL and a user that has a minimum of the following privileges on the new database: SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, ALTER 8. In the config file, set the DB_HOST, DB_USER, DB_PASS and DB_SCHEMA. 9. Verify that the database errors on the installation page are fixed by refreshing the browser. If the database tables don't exist yet they will be created for you. LOADING THE Tera-WURFL DATABASE 10.If you are satisfied with the results on the installation page, you can load the database with the WURFL data. There are three sources that the data can come from: a. Your local WURFL file This will load the DATADIR/wurfl.xml file into your database. b. The current released WURFL This will download the current wurfl.xml file from the official WURFL website (to DATADIR/dl_wurfl.xml) and load it into your database. c. The current CVS WURFL This will download the current unreleased CVS wurfl.xml file from the official WURFL website (to DATADIR/dl_wurfl.xml) and load it into your database. 11.There will be a delay while the server loads/downloads the WURFL, then you should see something like this: Downloading WURFL from ... done (4830831 bytes) Database Update -------------------------------------------------------------------------------- WURFL Version: Wireless Universal Resource File v_2.0.8 (June 5, 2007) Total Update Time: 13.725301980972 Total Devices in WURFL: 6626 Total Devices inserted in DB: 6626 Total Queries: 14 Largest Query: 344KB Total Errors: 0 Applying Patch -------------------------------------------------------------------------------- Total Update Time: 0.26863980293274 Total Devices in Patch File: 0 New Devices Added: 0 Merged Devices: 0 Total Queries: 5 Total Errors: 0 Update Complete! If there are errors, they are most likely problems connecting to the WURFL site or permission problems trying to write the downloaded file (dl_wurfl.xml) to the DATADIR directory. Also, some users have reported a "memory allocation" error - to fix this look for "Set Max Memory Limit" in the config file. If there are no errors, click on "Return to administration tool". ADMINISTRATION PAGE 12.Verify that the WURFL is loaded by clicking on "Statistics, Settings, Log File". You should see that there is data in your DE_DEVICE_TABLE and your DB_HYBRID table. If you loaded the patch file, you will also see data in your DB_PATCH_TABLE. The DB_CACHE_TABLE will fill up with cached data as devices access your site, and it will be cleared anytime you update EITHER your patch database or your main WURFL database. 13.Click on "Tera-WURFL test script" to test the installation. You can type in any user agent to search for it in the WURFL. If you have caching enabled (default), the first time you search for a user agent you will see the total number of queries that Tera-WURFL performed to find a match (unless there was no match). If there was a match, the device will be cached and the next time you search for it you will see "Total Queries: 1 (Found in cache)". Tera-WURFL only needed to perform 1 query since the devices full capabilities were cached. If you go back to the admin page and look at the settings, you will see that the DB_CACHE_TABLE now has a couple rows in it. Sweet success! SECURITY 14.You should delete the admin/install.php file if everything is working ok. 15. Protect your 'admin' directory by using a method specific to your web server software. For Apache, this means a .htaccess file would work: EXAMPLE Here is a very simple example: <?php // Include the Tera-WURFL file require_once('./tera_wurfl.php'); // instantiate the Tera-WURFL object $wurflObj = new tera_wurfl(); // Get the capabilities of the current client. $matched will be true if Tera-WURFL // found a match for the device and false if not. $matched = $wurflObj->getDeviceCapabilitiesFromAgent($_SERVER['HTTP_USER_AGENT']); // see if this client is on a wireless device (or if they can't be identified) if(!$matched || !$wurflObj->getDeviceCapability("is_wireless_device")){ echo "<h2>You should not be here</h2>"; } // check if there is a picture of this device if($wurflObj->device_image != ''){ // display device image echo '<img src="'.$wurflObj->device_image.'" /><br />'; } // see what this device's preferred markup language is echo "Markup: ".$wurflObj->getDeviceCapability("preferred_markup"); // see the display resolution $width = $wurflObj->getDeviceCapability("resolution_width"); $height = $wurflObj->getDeviceCapability("resolution_height"); echo "<br/>Resolution: $width x $height<br/>"; ?> The complete list of capabilities is available here: If you use $wurflObj->getDeviceCapability("cap_name") you can just use the capability name from the WURFL site, otherwise you can access it directly from the wurfl object's capabilities array like this: $wurflObj->capabilities['group_name']['cap_name'] Please see the test script (check_wurfl.php) for another example of usage. There are also a couple more examples of how to use Tera-WURFL in the main class file - tera_wurfl.php. SUPPORT You may contact me, Steve Kamerman with questions - once I feel that there are too many emails to deal with I will probably put up a forum, but since this project is still fairly new, I will just help you all out over email. Here's my email address: kamermans(at) NOTE: The public methods from the WURFL PHP Tools class at are avalible in this class and they all use the same syntax as before with the exception of the constructor - "tera_wurfl" which has been renamed from "wurfl_class".
  • Admin_settings.gif
  • tera_wurfl_ss-small.jpg
  Files folder image Files  
File Role Description
Files folder imageadmin (7 files)
Files folder imagedata (1 file)
Plain text file check_wurfl.php Example Testing Script
Plain text file tera_wurfl_config.php Conf. Global Configuration File
Plain text file README Doc. Basic information (installation, config, etc...)
Plain text file tera_wurfl.php Class Tera-WURFL Class File
Plain text file tera_wurfl_demo.php Example Demo Script
Plain text file webservice.php Aux. XML Webservice

  Files folder image Files  /  admin  
File Role Description
  Plain text file index.php Appl. Web administration interface
  Plain text file install.php Conf. Installation Script
  Plain text file stats.php Aux. Statistics Script
  Plain text file style.css Aux. CSS Stylesheet
  Plain text file tera_wurfl_parser.php Aux. WURFL Parser
  Plain text file tera_wurfl_updatedb.php Aux. Database maintenance script
  Image file triangle.gif Icon List Item Image

  Files folder image Files  /  data  
File Role Description
  Plain text file web_browsers_patch.xml Data Web Browser Identification

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