This function checks the validity of any given e-mail address. It checks ALL CURRENT (as of today, 8.19.03) top level domains. I may have missed one or two, but I think I got them all now! Check it out!
By : DeadlySin3
<?php
function validate_email($str){
$str = strtolower($str);
if(ereg("^([^[:space:]]+)@(.+)\.(ad|ae|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|cr|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|edu|ee|eg|eh|er|es|et|fi|fj|fk|fm|fo|fr|fx|ga|gb|gov|gd|ge|gf|gh|gi|gl|gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|mv|mw|mx|my|mz|na|nato|nc|ne|net|biz|info|nf|ng|ni|nl|no|np|nr|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw)$",$str)){
return 1;
} else {
return 0;
}
}
if(validate_email($email)) { echo "E-mail is valid"; }
else { echo "Either the e-mail is not valid, or the top level domain is not included in the email validation list."; }
?>
<?php
/* Comments
You don't need this portion to use the script.
You may safely delete this
To test it out for fun, you could upload this script to your server...
point your browser to it
http://www.YOURSITE.com/scriptName.php
and append this to it: ?email=me@you.net
so it looks like this
http://www.YOURSITE.com/scriptName.php?email=me@you.net
This would give the output: E-mail is valid
Since "net" is in the above list.. it returns 1 (true)
then try this
http://www.YOURSITE.com/scriptName.php?email=notValid@all.mistake
this would return 0 (false):
Either the e-mail is not valid, or the top level domain is not included in the email validation list.
It returns 0 because "mistake" isn't in the list above.
To update the list, just add new extensions to the list above when they become available!
Hope ya like it
*/
?>
| DISCLAIMER: The content provided in this article is not warranted or guaranteed by Developer Shed, Inc. The content provided is intended for entertainment and/or educational purposes in order to introduce to the reader key ideas, concepts, and/or product reviews. As such it is incumbent upon the reader to employ real-world tactics for security and implementation of best practices. We are not liable for any negative consequences that may result from implementing any information covered in our articles or tutorials. If this is a hardware review, it is not recommended to open and/or modify your hardware. |
More Email Code Articles
More By Codewalkers
 developerWorks - FREE Tools!
|
Join this webcast, to learn how the Rational Process Library can help with compliance issues, drive process improvement, and assist in service-oriented architecture (SOA) or Agile development. We will take a peek into the Rational Process Library with content around software and systems engineering (including RUP), operations and systems management, program and portfolio management, and asset and SOA governance.
FREE! Go There Now!
|
|
|
|
As businesses grow increasingly dependent upon Web applications to provide services to customers, employees and partners, these complex applications become more difficult to secure. Although traditional security solutions protect Internet infrastructure layers, they do not guard against HTTP and HTML attacks. Many organizations that conduct security testing still deploy applications that allow attackers to manipulate their logic and wreak havoc on their business. To mitigate this risk, development and delivery teams must address Web application security throughout the lifecycle, addressing the many layers detailed in this paper.
FREE! Go There Now!
|
|
|
|
Building a software-as-a-service solution requires addressing a few key technical challenges. In this webcast, we'll focus on the role of IBM Tivoli Directory Server and WebSphere Portlet Factory in creating a Software as a Service solution. We will demonstrate how to use Tivoli Directory Server to prevent the user population of one tenant from accessing the virtual portal and portlet components of another tenant. We will also use the dynamic profile capability of WebSphere Portlet Factory to create multiple highly customized applications from one code base.
FREE! Go There Now!
|
|
|
|
As systems increase in complexity, communication between systems and software teams becomes more and more difficult. Now, there’s a way to improve product quality and communication.<br />Read the “Model Driven Systems Development” white paper to see how. Also included in this kit are more educational white papers, customer examples, tutorials, informative Webcasts, and best practices for designing, building and managing systems.<br />
FREE! Go There Now!
|
|
|
|
Asset Reuse is a key strategy for companies looking to create innovative solutions to solve complex software development problems. Searching for, identifying, updating, using and deploying software assets can be a difficult challenge. Listen to this webcast, to learn about strategies and tools that you can leverage for a successful project, including Rational Asset Manager, Rational Software Architect and WebSphere Service Registry and Repository.
FREE! Go There Now!
|
|
|
|
XML has become a common way of storing business data as flat files and many data server vendors including IBM have provided ways to store this data within relational database systems. Increasingly collections of XML files are accessed like databases using an xQuery and other XML standard mechanisms. Businesses find the need to combine the traditional tabular structured data with XML formatted data. In this webcast, you’ll learn about IBM’s WebSphere Federation Server technology, which provides users with the ability to integrate these two data formats.
FREE! Go There Now!
|
|
|
|
Join this Rational Talks to You teleconference on December 11 at 1:00 pm ET to get tips on building your own plugins with Rational Method Composer. Get your questions answered!
FREE! Go There Now!
|
|
|
|
Join this Rational Talks to You teleconference on November 29 at 1:00 pm ET to participate in an interactive discusssion with Grady Booch around architecture and reuse. Get your questions answered!
FREE! Go There Now!
|
|
|
|
Get a free trial download of the latest version of IBM Rational Functional Tester V7.0.1. Rational Functional Tester is an automated functional and regression testing solution for QA teams concerned with the quality of their Java, Microsoft Visual Studio .NET, and Web-based applications.
FREE! Go There Now!
|
|
|
|
User communities play an important role in communication and collaboration around products, solutions and other areas of special interest to members. Successful communities are able to provide the right mix of content and services to deliver a value proposition that resonates with each audience. Join Tom Inman, VP of Marketing for Information and Platform Solutions as he introduces the new LeverageINFORMATION community. During this webcast, learn about the value provided by the community and how customers and partners derive value from the community in addressing their own technical and business challenges.
FREE! Go There Now!
|
|
|
|
All FREE IBM® developerWorks Tools!
|
