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POGetting state from MySql via PHP + JSON
 

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    <p>I am building an android game in which I am attempting to download the user's profile from a MySql db into the local SQLite DB. I am able so the profile to the server but unable to retrieve it. </p> <p>Here are the relevant android methods, there should be no issues with them they function properly although the logic itself may be off. </p> <pre><code> //LOAD PROFILE CLASS userFunctions.getServerGameState(email, monster, qty, exp); db.saveLocalGameSate(monster, qty, exp); //FUNCTIONS CLASS public JSONObject getServerGameState(String email, String monster, int qty, int exp) { // Building Parameters List&lt;NameValuePair&gt; params = new ArrayList&lt;NameValuePair&gt;(); params.add(new BasicNameValuePair("tag", get_game_state)); params.add(new BasicNameValuePair("email", email)); params.add(new BasicNameValuePair("monster", monster)); params.add(new BasicNameValuePair("qty", Integer.toString(qty))); params.add(new BasicNameValuePair("exp", Integer.toString(exp))); // getting JSON Object JSONObject json = jsonParser.getJSONFromUrl(monsterURL, params); // return json return json; } //DB HANDLER CLASS public void saveLocalGameSate(String monster, int qty, int exp){ SQLiteDatabase db = this.getWritableDatabase(); ContentValues values = new ContentValues(); values.put(KEY_MONSTER, monster); // Do they own it values.put(KEY_QTY, qty); // Number of things they own values.put(KEY_EXP, exp); // monster's level // Inserting Row db.insert(USERPROFILES_TABLE, null, values); db.close(); // Closing database connection } </code></pre> <p>Here is the PHP, I believe my error lies in one of these two files. </p> <p>index.php</p> <pre><code> else if ($tag == 'get_game_state') { $email = $_POST['email']; $monster = $_GET['monster']; $qty = $_GET['qty']; $exp = $_GET['exp']; $result = $db-&gt;getGameState($email, $monster, $qty, $exp); if (!empty($result)) { echo json_encode($response); } else { $response["error"] = 1; $response["error_msg"] = "Error getting game state from server"; echo json_encode($response); } </code></pre> <p>functions.php</p> <pre><code>public function getGameState($email, $monster, $qty, $exp) { $result = mysql_query("SELECT monster AND qty AND exp WHERE email = '$email'"); $row = mysql_fetch_assoc($result); if (mysql_num_rows($result) &gt; 0) { $gamestate = array(); $gamestate["monster"] = $result["monster"]; $gamestate["qty"] = $result["qty"]; $gamestate["exp"] = $result["exp"]; // success $response["success"] = 1; // user node $response["GameState"] = array(); array_push($response["GameState"], $gamestate); // echoing JSON response echo ($response); } else { return false; } </code></pre> <p>Here are some error messages I am receiving </p> <pre><code>06-12 14:15:52.046: E/JSON(10577): &lt;b&gt;Warning&lt;/b&gt;: mysql_fetch_assoc() expects parameter 1 to be resource, boolean given in &lt;b&gt;/home/content/40/8529140/html/webapps/monster/include/DB_Functions.php&lt;/b&gt; on line &lt;b&gt;145&lt;/b&gt;&lt;br /&gt; 06-12 14:15:52.046: E/JSON(10577): &lt;b&gt;Warning&lt;/b&gt;: mysql_num_rows() expects parameter 1 to be resource, boolean given in &lt;b&gt;/home/content/40/8529140/html/webapps/monster/include/DB_Functions.php&lt;/b&gt; on line &lt;b&gt;147&lt;/b&gt;&lt;br /&gt; 06-12 14:15:52.046: E/JSON(10577): {"tag":"get_game_state","success":0,"error":1,"error_msg":"Error getting game state from server"} 06-12 14:15:52.046: E/JSON Parser(10577): Error parsing data org.json.JSONException: Value &lt;br of type java.lang.String cannot be converted to JSONObject </code></pre> <p>Lastly please don't tell me that my php insecure <strong>I know this</strong> PHP is not my strong point and I am looking to get a test version up and running. <a href="http://php.net/manual/en/book.pdo.php" rel="nofollow">PDO</a> is on my development roadmap and will be implemented. </p> <p>Thanks.</p> <p><strong>UPDATE</strong>:</p> <p>After fixing the SQL statement to select from the proper table </p> <pre><code>06-12 15:03:48.216: E/JSON Parser(11427): Error parsing data org.json.JSONException: Value Array of type java.lang.String cannot be converted to JSONObject </code></pre>
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    1. COcan you please share the "Request" structure that you expect at server side (PHP) ?
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    2. COyour mysql_query() is failing. Use mysql_error() to find out why.
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      1. USjlasarte
 

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