email validation

AfterAlot · November 27th, 2012, 12:58 PM

please kindly show me how to validate email. i tried this

[ode]
if (!preg_match("^[[:alnum:]][a-z0-9_.-]*@[a-z0-9.-]+\.[a-z]{2,4}$", $_POST['email']))
{
echo 'Invalid email!';
header("Location:registration_feedback.php?msg=wro ng");
}
[code/]

James360Smith · December 3rd, 2012, 08:02 AM

You should try try this script which uses regular expressions to verify that a form field contains a legal email address.

Look here for some examples of legal email addresses that this script will identify:
â¢ [email protected]
â¢ [email protected]
â¢ [email protected]
â¢ [email protected]
â¢ [email protected]
â¢ [email protected]

Guide 1: Insert the underneath script to the <BODY> section of your web page:

Code:

<script type="text/javascript">

/***********************************************
* Email Validation script
* This notice must stay intact for legal use.
***********************************************/
var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i
function checkmail(e){
var returnval=emailfilter.test(e.value)
if (returnval==false){
alert("Please enter a valid email address.")
e.select()
}
return returnval
}

</script>
<form>
<input name="myemail" type="text" style="width: 270px"> <input type="submit" onClick="return checkmail(this.form.myemail)" value="Submit" />
</form>

The code on top includes a example form where this script validates the email field contained. The form looks similar to this:

Code:

<form>
<input name="myemail" type="text" style="width: 300px"><br/>
<input type="submit" onClick="return checkmail(this.form.myemail)" value="Submit" />
</form>

To modify this script to serve up your own form, just change the parts in bold above to your own. More purposely, you first give your email address field a name(like name="myemail"). Then, adjust the submit button of the form by adding in the "onClick" part. keep in mind to alter "myemail" to replicate the name of your email address field.

logangibs · April 30th, 2013, 04:51 AM

Validate the Email Address

$stremail=$_POST["txtemail"];
$result=ereg("^[^@ ]+@[^@ ]+\.[^@ ]+$",$stremail,$trashed);
if(!$result){
echo "Enter a valid E-mail Address";
DisplayForm();
}
else{
echo "Invalid E-mail Address";
$stremail="";
DisplayForm();
}

Try this code and check it. I am using this code for my email validation.

cphamtcb · July 4th, 2013, 02:21 AM

Simple regex:

Code:

return preg_match("/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$/i", $value);