eregi error

[KevinM1]

I'm currently trying to write some form validation into a script, but the eregi function keeps choking on one of my expressions.  I keep getting the error: [quote]Warning: eregi() [function.eregi]: REG_ERANGE in /home/thinkin8/public_html/checkout.php on line 18[/quote]

This error occurs where I try checking an address for validity.  My code is:
[code]
<?php

#checkout.php

$errMessage = NULL;
$mailMessage = NULL;

if(isset($_POST['submit'])){
  if(!empty($_POST['name']) && eregi("^[a-zA-Z]+([ a-zA-Z-]+)*$", $_POST['name'])){
      $name = $_POST['name'];
      $n = TRUE;
  }

  else{
      $errMessage .= "Please enter your name!<br />\n";
  }

  if(!empty($_POST['address1']) && eregi("^[0-9a-zA-Z.- ]+$", $_POST['address1'])){
      $address1 = $_POST['address1'];
      $a1 = TRUE;
  }

  else{
      $errMessage .= "Please enter your address!<br />\n";
  }

  if(!empty($_POST['address2']) && eregi("^[0-9a-zA-Z.- ]+$", $_POST['address2'])){
      $address2 = $_POST['address2'];
  }

  else{
      $address2 = '';
  }

  if(!empty($_POST['city']) && eregi("^[a-zA-Z.- ]+$", $_POST['city'])){
      $city = $_POST['city'];
      $c = TRUE;
  }

  else{
      $errMessage .= "Please enter your city!<br />\n";
  }

  if(!empty($_POST['state']) && eregi("^[a-zA-Z]{2}$", $_POST['state'])){
      $state = $_POST['state'];
      $s = TRUE;
  }

  else{
      $errMessage .= "Please enter your state!<br />\n";
  }

  if(!empty($_POST['zipcode']) && eregi("^[0-9]{5}[-0-9]{4}?$", $_POST['zipcode'])){
      $zipcode = $_POST['zipcode'];
      $z = TRUE;
  }

  else{
      $errMessage .= "Please enter your zipcode!<br />\n";
  }

  if($n && $a1 && $c && $s && $z){
      $mailMessage .= "$name\n$address1\n$address2\n$city, $state $zipcode";
      mail('[email protected]', 'Test message', $mailMessage);
      echo "Your mail has been sent, $name<br />\n";
  }

  else{
      echo "<div style='color: red;'>$errMessage</div>\n";
  }
}

?>

<form name="checkout" action="<?php echo $_SERVER['PHP_SELF'] ?>" method="POST">
  Name: <input type="text" name="name" /><br />
  Address 1: <input type="text" name="address1" /><br />
  Address 2: <input type="text" name="address2" /><br />
  City: <input type="text" name="city" /><br />
  State: <input type="text" name="state" /><br />
  Zipcode: <input type="text" name="zipcode" /><br />
  <input type="submit" name="submit" value="Checkout" />
</form>
[/code]

I'm just trying to see if the user entered in normal address stuff (alphanumeric characters, and the period, hyphen, and space), so I'm a bit at a loss as to why this error is appearing, especially when my first regex, which validates a person's name, works correctly.  Please help.

[Orio]

You need to escape the "-". Same goes for the full-stops.
^[0-9a-zA-Z.- ]+$ For example should be ^[0-9a-zA-Z\.\- ]+$

Orio.

[KevinM1]

Unfortunately, I'm still getting the same error.

[utexas_pjm]

[code]
eregi('^[a-zA-Z\.\-\ ]+$', 'foo');
[/code]