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

*/

?>

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