php - Why won't this script properly sanitize output? -


i trying sanitize output of should simple email script, outputs blank page. here script:

    <?php define("email", "info@silentpost.net");  if(isset($_post['submit'])) {    //include validation class   include('./support/validate.class.php');    //assign post data variables   $_post['name'] = filter_var($_post['name'], filter_sanitize_string);   $_post['email'] = filter_var($_post['email'], filter_sanitize_email);   $_post['message'] = filter_var($_post['message'], filter_sanitize_string);    $name = trim($_post['name']);   $email = trim($_post['email']);   $message = trim($_post['message']);    //start validating our form   $v = new validate();   $v->validatestr($name, "name", 3, 75);   $v->validateemail($email, "email");   $v->validatestr($message, "message", 5, 1000);    if(!$v->haserrors()) {         $header = "from: $email\n" . "reply-to: $email\n";         $subject = "email silentpost.net website!";         $email_to = email;          $emailmessage = "name: " . $name . "\n";         $emailmessage .= "email: " . $email . "\n\n";         $emailmessage .= $message;          @mail($email_to, $subject ,$emailmessage ,$header );      } else {     //set number of errors message     $message_text = $v->errornummessage();      //store errors list in variable     $errors = $v->displayerrors();      //get individual error messages     $nameerr = $v->geterror("name");     $emailerr = $v->geterror("email");     $messageerr = $v->geterror("message");   }//end error check   }// end isset ?>

if omit following code, script run fine:

$_post['name'] = filter_var($_post['name'], filter_sanitize_string); $_post['email'] = filter_var($_post['email'], filter_sanitize_email); $_post['message'] = filter_var($_post['message'], filter_sanitize_string);

if necessary, include class, don't think issue class, removing filter_var lines outputs correctly.

any appreciated.

i 2 things:

a. make sure you're running php >= 5.2 (minimum filter_var function).

b. add error_reporting(e_all); top of script, let see error being thrown causing blank page.


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