Php required field -


i trying insert records dont know how check required fields , form controls.can show me how can check required fields? new in php. thank you. 

if(isset($_post['submitted']) == 1) {      $ad = mysqli_real_escape_string($dbc, $_post['name']);      $soyad = mysqli_real_escape_string($dbc, $_post['surname']);      $email = mysqli_real_escape_string($dbc, $_post['email']);      $q = "insert db (name, surname,email) values ('$name', '$surname', '$email')";      $r = mysqli_query($dbc, $q);      if($r){          $message = '<p>message added!</p>';      } else {          $message = '<p>could not add because: '.mysqli_errno($dbc);          $message .= '<p>'.$q.'<p>';      } }

your form , php code not aware of limitation set on database table. can ask database how table looks using describe keyword followed table name. (http://dev.mysql.com/doc/refman/5.7/en/describe.html). response tell if field's allowed null or not. based on can create form take consideration.


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