PHP - Mysqli_query成功，但返回空行

Question

我有一个充满名字的表，我有一个存储过程返回所有名称。然而，它没有做我期望它做的事情，即使使用日志我也无法查明问题。我没有得到实际名称的下拉列表，而是得到空白值的下拉，好像我可以实际选择一个值，但是console.log显示一个空值，我假设它意味着它是空的

connection.php

<?php
    require 'credentials.php';
    include '../ChromePhp.php';

    $con = new mysqli($servername, $username, $password, $dbname);

    // Check connection
    if ($con->connect_errno) {
        echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error;
        ChromePhp::warn('something went wrong!'); // didn't reach here
    }
?>

这会调用retrieveAllPokemonNames.php

  <?php 
    include '../database/retrieveAllPokemonNames.php';
    while ($row = $result->fetch_assoc()){
      echo "<option value= ".$row[0].">".$row[0]."</option>";
    }
  ?>

retrieveAllPokemonNames.php

<?php
    require 'connection.php';
    $sql = "CALL sp_selectAllPokemonName";

    if ($result = $con->query($sql)){
        ChromePhp::log('query is successful'); // output
        ChromePhp::log($result); // log outputs a Object { current_field: null, field_count: null, .....etc }
    }
?>

当我在phpMyAdmin的界面中调用它时，SQL查询工作正常，sp_selectAllPokemonName基本上是

Select * From PokemonName

返回~100行