E-mail controle

<?php
function check_email($in) {
  $patroon = "/^([a-z0-9_-]+\.)*[a-z0-9_-]+@([a-z0-9_-]{2,}\.)+([a-z0-9_-]{2,})$/i";
  return preg_match($patroon, $in);
}
?>

<?php
function check_email($in) {
  $patroon = "/^([a-z0-9_-]+\.)*[a-z0-9_-]+@([a-z0-9_-]{2,}\.)+([a-z0-9_-]{2,})$/i";
  return preg_match($patroon, $in);
}
?>

<?php
function control_email($address) {
  list($local, $host) = explode("@", $address);
  $pattern_local = "^([0-9a-z]*([-|_]?[0-9a-z]+)*)(([-|_]?)\.([-|_]?)[0-9a-z]*([-|_]?[0-9a-z]+)+)*([-|_]?)$";
  $pattern_host  = "^([0-9a-z]+([-]?[0-9a-z]+)*)(([-]?)\.([-]?)[0-9a-z]*([-]?[0-9a-z]+)+)*\.[a-z]{2,4}$";
  $match_local = eregi($pattern_local, $local);
  $match_host = eregi($pattern_host, $host);

  if($match_local && $match_host) {
    return 1;
  } else {
    return 0;
  }
}
?>

<?php
function control_email($address) {
  list($local, $host) = explode("@", $address);
  $pattern_local = "^([0-9a-z]*([-|_]?[0-9a-z]+)*)(([-|_]?)\.([-|_]?)[0-9a-z]*([-|_]?[0-9a-z]+)+)*([-|_]?)$";
  $pattern_host  = "^([0-9a-z]+([-]?[0-9a-z]+)*)(([-]?)\.([-]?)[0-9a-z]*([-]?[0-9a-z]+)+)*\.[a-z]{2,4}$";
  $match_local = eregi($pattern_local, $local);
  $match_host = eregi($pattern_host, $host);
 
  if($match_local && $match_host) {
    return 1;
  } else {
    return 0;
  }
}
?>

<?php
// Mijn versie
if(check_email("info@sitemasters.be")) {
  echo "Adres ok.";
}

// Joël zijn versie
if (control_email("info@sitemasters.be")) {
   echo "Het e-mailadres is correct!\n";
}
?>

<?php
// Mijn versie
if(check_email("info@sitemasters.be")) {
  echo "Adres ok.";
}
 
// Joël zijn versie
if (control_email("info@sitemasters.be")) {
   echo "Het e-mailadres is correct!\n";
}
?>