Convert PHP file To PDO [closed] - php

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i am beginer to php and i need your help.i want to make the following code to PDO to have a json output for an android app i am trying to bulit.I tryed a lot of solution but nothing correct came because of the JSON responce.I couldn also find good example and tutorials.Also i am new as i said with php so i am afraid to try complicated scenarios
here is the php code
This is my Config file
db_config.php
<?php
define('DB_USER', "root"); // db user
define('DB_PASSWORD', ""); // db password (mention your db password here)
define('DB_DATABASE', "androidhive"); // database name
define('DB_SERVER', "localhost"); // db server
?>
This is connection file
db_connect.php
<?php
class DB_CONNECT {
// constructor
function __construct() {
// connecting to database
$this->connect();
}
// destructor
function __destruct() {
// closing db connection
$this->close();
}
/**
* Function to connect with database
*/
function connect() {
// import database connection variables
require_once __DIR__ . '/db_config.php';
// Connecting to mysql database
$con = mysql_connect(DB_SERVER, DB_USER, DB_PASSWORD) or die(mysql_error());
// Selecing database
$db = mysql_select_db(DB_DATABASE) or die(mysql_error()) or die(mysql_error());
// returing connection cursor
return $con;
}
/**
* Function to close db connection
*/
function close() {
// closing db connection
mysql_close();
}
}
?>
get_all_products.php
<?php
/*
* Following code will list all the products
*/
// array for JSON response
$response = array();
// include db connect class
require_once __DIR__ . '/db_connect.php';
// connecting to db
$db = new DB_CONNECT();
// get all products from products table
$result = mysql_query("SELECT *FROM products") or die(mysql_error());
// check for empty result
if (mysql_num_rows($result) > 0) {
// looping through all results
// products node
$response["products"] = array();
while ($row = mysql_fetch_array($result)) {
// temp user array
$product = array();
$product["pid"] = $row["pid"];
$product["name"] = $row["name"];
$product["price"] = $row["price"];
$product["created_at"] = $row["created_at"];
$product["updated_at"] = $row["updated_at"];
// push single product into final response array
array_push($response["products"], $product);
}
// success
$response["success"] = 1;
// echoing JSON response
echo json_encode($response);
} else {
// no products found
$response["success"] = 0;
$response["message"] = "No products found";
// echo no users JSON
echo json_encode($response);
}
?>
I know is very easy for someone with experience but i am strungle with it.please help because i have a strick deadline and no time now for deaper search.Thank you
**Would it be helpfull if i post what i have done?I didnt post it for space reason**s
EDIT
THIS IS WHAT I HAVE DONE SO FAR ANY IDEAS?
$db = new PDO("mysql:host=$dbhost;dbname=$dbname;", $dbuser, $dbpass);
$query = "Select * FROM products";
//execute query
try {
$stmt = $db->prepare($query);
$result = $stmt->execute(HAVE NO IDEA!!!!);
}
catch (PDOException $ex) {
$response["success"] = 0;
$response["message"] = "Database Error!";
die(json_encode($response));
}
$rows = $stmt->fetchAll();
if ($rows) {
$response["success"] = 1;
$response["message"] = "Post Available!";
$response["posts"] = array();
foreach ($rows as $row) {
$post = array();
$post["pid"] = $row["pid"];
$post["name"] = $row["name"];
$post["price"] = $row["price"];
//update our repsonse JSON data
array_push($response["posts"], $post);
}
// echoing JSON response
echo json_encode($response);
} else {
$response["success"] = 0;
$response["message"] = "No Post Available!";
die(json_encode($response));
}
?>

Answer 1

Try this approach:
<?php
$response = array()
try {
//connection
$db = new PDO("mysql:host=$dbhost;dbname=$dbname;", $dbuser, $dbpass);
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
//prepare
$query = "Select * FROM products";
$stmt = $db->prepare($query);
//get resutlt
$result = $stmt->execute();
if ($stmt->rowCount > 0) {
$response["success"] = true;
$response["message"] = "Post Available!";
//populate post array
while($row = $stmt->fetch()){
$response["posts"][] = $row;
}
}else{
$response["success"] = false;
$response["message"] = "No Post Available!";
}
}
catch (PDOException $ex) {
$response["success"] = false;
$response["message"] = "Database Error!";
}
echo json_encode($response);
?>
Prepared statements and stored procedures
using fetch all:
$rows = $stmt->fetchAll();
var_dump($rows);
$response["posts"] = $rows;