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Email Address Verification

Email
Submitted on: 1/1/2015 7:46:00 AM
By: Joe Hobbs (from psc cd)  
Level: Intermediate
User Rating: By 5 Users
Compatibility: PHP 3.0, PHP 4.0
Views: 1815
 
     This function verifies that an email address is indeed valid. This function goes a step further than most other functions I have found online. It allows multi-level domains like subdomain.domain.com. This function does NOT check for .com .org etc, because you never know what domains will be out there. And even checking for 3 or so characters will die on .tv and .info domains.
 
code:
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//**************************************
// Name: Email Address Verification
// Description:This function verifies that an email address is indeed valid.
This function goes a step further than most other functions I have found online. It allows multi-level domains like subdomain.domain.com.
This function does NOT check for .com .org etc, because you never know what domains will be out there. And even checking for 3 or so characters will die on .tv and .info domains.
// By: Joe Hobbs (from psc cd)
//
// Inputs:$sEmailAddress = String containing the email address to check
//
// Returns:Returns TRUE if the email address is valid
//**************************************

// Check to make sure email address is valid
function funcCheckEmail($sEmailAddress)
{
 // Regex of valid characters
 $sChars = "^[A-Za-z0-9\._-]+@([A-Za-z][A-Za-z0-9-]{1,62})(\.[A-Za-z][A-Za-z0-9-]{1,62})+$";
 // Check to make sure it is valid
 $bIsValid = true;
 if(!ereg("$sChars",$sEmailAddress))
 {
$bIsValid = false;
 }
 return $bIsValid;
}


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