sql - basic php else if not working -


i have php validation user signup form. it's validating input if correct else @ end, checks see if username in use , if not creates record in database. reason last else doesn't activated , refreshes data still in input boxes. can't find problem anywhere!!

if(isset($_post['user'])) {     $firstname = sanitisestring($_post['firstname']);      $surname = sanitisestring($_post['surname']);     $user = sanitisestring($_post['user']);     $pass = sanitisestring($_post['pass']);     $email = sanitisestring($_post['email']);     $dateofbirth = sanitisestring($_post['dateofbirth']);     $gender = sanitisestring($_post['gender']);      $test_arr  = explode('-',$dateofbirth);      if($firstname == "" || $surname =="" || $user == "" || $pass == "" || $email == "" || $dateofbirth == "" || $gender == "")         {$error = "not fields entered</br></br>";}         else if(!filter_var($email, filter_validate_email))             {$error = "email format invalid</br></br>";}         else if(count($test_arr) == 3)              {             if (!checkdate($test_arr[0], $test_arr[1], $test_arr[2]))                 {$error = "enter date in format: mm-dd-yyyy</br></br>";}             }         else if(count($test_arr) <> 3)              {$error = "enter date in format: mm-dd-yyyy</br></br>";}         else             {             $result = querysql("select * members user='$user'");             if($result->num_rows)                 {$error = "that username exists</br></br>";}             else                 {                 querysql("insert members values('','$firstname','$surname','$user','$pass','$email','$dateofbirth','$gender')");                 die("<h4>account created</h4>please log in.</br></br>");                 }             } }

first thing comment on incredible amount of nested logic script has; it's not uncommon lose control of flow when you're if / else branching gets out of control.

example restructure

if (isset($_post['user'])) {     // prep     $error = '';      // sanitize     foreach( $_post $varname => $value )     {         // doing minification on stackoverflow         $$varname = sanitisestring($_post[$varname]);          // validate         if ( empty($$varname) )             $error .= "not fields entered<br /><br />";     }      // valid email?     if ( !filter_var($email, filter_validate_email) )         $error .= "email format invalid<br /><br />";      // validate date     $datearray = explode('-', $dateofbirth);     if (!checkdate($datearray[0], $datearray[1], $datearray[2]))     {         $error .= "enter date in format: mm-dd-yyyy</br></br>";     }      $result = querysql("select * members user='$user'");     if ($result->num_rows)     {         $error .= "that username exists</br></br>";     }      if ( !empty($error) )         die($error);      querysql("insert members values('','$firstname','$surname','$user','$pass','$email','$dateofbirth','$gender')");     die("<h4>account created</h4>please log in.</br></br>"); }

some other things note conflicting logic count($test_arr) == 3 , count($test_arr) <> 3. , value of $result->num_rows may not 0, expecting.


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