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[Orionsbelter]

hi can some help me i have a email input where i want it to echo invaild when someone gives an invaild email because people aren't sigining up with real emails, also can some show me the scripts for stopping people sigining up with bad username like twat. or dick etc. thanks:D

[runnerjp]

<?php 
// Function to check whether a given hostName is a valid email
// domain address.
function myCheckDNSRR($hostName, $recType = '')
{
if(!empty($hostName)) {
	if( $recType == '' ) $recType = "MX";
	exec("nslookup -type=$recType $hostName", $result);
	// check each line to find the one that starts with the host
	// name. If it exists then the function succeeded.
	foreach ($result as $line) {
		if(eregi("^$hostName",$line)) {
			return true;
		}
	}
	// otherwise there was no mail handler for the domain
	return false;
}
return false;
}

// If you are running this test on a Windows machine, you'll need to
// uncomment the next line and comment out the checkdnsrr call:
//if (myCheckDNSRR("joemarini.com","MX"))
if (checkdnsrr("joemarini.com","MX"))
echo "yup - valid email!";
else
echo "nope - invalid email!";
?>

 

annndd you bad words one i use this

 

<?php function filterBadWords($str){

// words to filter
$badwords=array( "[naughty word removed]", "[naughty word removed]", "[no swearing please]", "[oops]", "[oops]", "[naughty word removed]", "[oops]", "[oops]" );

// replace filtered words with
$replacements=array( "[naughty word removed]", "[how wude!]", "[no swearing please]" );

for($i=0;$i < sizeof($badwords);$i++){
  srand((double)microtime()*1000000); 
  $rand_key = (rand()%sizeof($replacements));
  $str=eregi_replace($badwords[$i], $replacements[$rand_key], $str);
}
return $str;
}

example call : $your_text_on_page = filterBadWords($your_text_from_comments) ?>

[micmania1]

$badwords = array('word1', 'word2', 'word3')';

if (array_value_exists($_POST['username'], $badwords)) {
       die ("BAD WORD");
} else {
       die ("FINE");
}

[scarhand]

$email = $_POST['email'];

if (isset($_POST['submit']))
{
  if (!eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$", $email))
  {
    echo 'You have entered an invalid email address';
  }
  else
  {
    // the email address is valid, so do stuff here
  }
}

 

this will check to see if the email address is using standard email formatting.

 

i.e. "joe@mymail.com" will work, where "joemail.com" or "joe@joemail" will not

 

micmania's simple bad word solution will work for the naughty words you do not want