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donation code valadation for newbies

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I have been studying the regular exspresions all week, and know i understand it quite well heres a free example good luck.



<?

//tempary web address.

//$web_address="www.google.com";

//function web_address($web_address) {

//if(eregi("^(www)+\.+[a-z]+\.+[a-z]+(\.+[a-z]{2})?$",$web_address)){

//echo "Correct web address!";
//}else{
//echo "Wrong web address!";
//}
// }

//returning the function.

//web_address($web_address);


?>

<?

//tempary email address

//function email_address($email) {

//$email_address="me@me.com";

//if(eregi("^[a-z0-9]+@[a-z0-9_\-\]+\.+[a-z0-9]+(\.+[a-z].)?$",$email_address)) {

//echo " Correct Email address";

//}else{

//echo " Wrong email address";

//}
// }

//returning function

//email_address($email);

?>

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sorry there you go you can have http:// or www. or both lol full url or subdomain

[code]
<?

//tempary web address.

$web_address="www.google.com";

function web_address($web_address) {

if(eregi("^(http://|www.)+[a-z]+\.+[a-z]+(\.+[a-z]{2})?$",$web_address)){

echo "Correct web address!";
}else{
echo "Wrong web address!";
}
}

//returning the function.

web_address($web_address);


?>

[/code]

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