php - Update from URL -

i have been working towards updating password after request has been sent , collected email, request part seems work when try update password nothing seems happen, password length set @ 255, checked if correct id getting , seems be, when manually run query in easyphp adding want updated seems work, have looked @ network response no errors showing , checked error logs nothing there either. advice great.

  <?php  require_once'connection.php';       $userinput = new userinput();      $userinput->triminput();        $id = '';      if( isset( $_get['reset'])) {     $id = $_get['reset'];      }    header('content-type: application/json');      $errors = [];       if (empty($_session['resetpassword'])) {          $_session['resetpassword'] = 1;      }      else {          $_session['resetpassword']++;      }      if($_session['resetpassword'] > 3){             $errors[]= ["name"=>"username","error"=>"too many attempts try again in 15 minutes"];       if(!isset($_session["timeoutpassword"])){             $_session['timeoutpassword'] = time();    };    $st = $_session['timeoutpassword'] + 900;       if(time() > $st){     unset($_session['resetpassword']);     unset($_session['timeoutpassword']);   }             }     else {                  if(filter_var($_get['password'],  filter_validate_regexp,["options"=> [ "regexp" => "/.{6,25}/"]]) === false){                      $errors[]= ["name"=>"password","error"=>"invalid password (6 25 characters)"];                  }                   if(!preg_match("/(?=[a-z]*[0-9])(?=[0-9]*[a-z])([a-z0-9-]+)/i",$_get['password'])) {                       $errors[]= ["name"=>"password","error"=>"password must contain numbers , letters"];                  }                   if($_get['password'] !== $_get['repeatpassword']){                      $errors[]= ["name"=>"repeatpassword","error"=>"passwords don't match"];                  }               if (count($errors) === 0) {             try{                     $sql = "update username set activecode = 'active', password = :password activecode = :reset";                      $stmt = $db->prepare($sql);                      $stmt->bindvalue(':password',  password_hash($_get['password'], password_default));                      $stmt->bindvalue(':reset',  $id);                     $stmt->execute();                     $stmt->rowcount();                      if ( $stmt->rowcount() === 1){                              echo json_encode(["success"=>"your password has been reset"]);                                 exit(0);                      }             }             catch(exception $e ) {                   $errors[]= ["name"=>"username","error"=>"unable update password"];             }              } }      echo json_encode(["errors"=>$errors]);