检测任何尝试插入电子邮件地址或电话号码的尝试

Question

How can I detect from input boxes any attempt to insert an email address or phone number. This is the main scenario: we have some inputs where user should only write what they are for, like name or street or features.

How can I detect/verify after the user submits that in all that data he sends there are no: emails/phone numbers. Take in consideration that I also have to eliminate this kind of tries: email at domain dot com, emails @ [spaces] dot [spaces] com and so on.

Are there any plugins, tools out there we can use? Do you have an idea about this? Let's put it to the test.

We are building a web application. (php/javascript mainly)

Answer 1

Use a jQuery plugin for validation - then use regex (or some of the already built in functions) to validate the input ...

I use the Position Absolute validator for jQuery

Answer 2

If you are searching for jQuery validation plugins there are tons of them.

Eg http://bassistance.de/jquery-plugins/jquery-plugin-validation/ or search Google for "jquery validation plugin"

Also validate your input server-side with php after submit, because Javascript can be disabled in the browser.

There are also many tutorials out there (eg http://myphpform.com ), or search SO.

Answer 3

HTML

<input type="text" id="lname" name="lname" />
<input type="submit" value="Submit" name="submit" onclick="return validate();"/>

in Javascript

function validate()
{
         var regex =  /^[a-zA-Z_]+$/;
         var lname = document.getElementById('lname').value;
         if (regex.test(lname)) {
             return true;
         } else {
             return false;                    
         }

}

you can edit regex to suit your criteria