Class not found on AWS Elastic beanstalk environment - php

Question

Im getting the follow error from my elastic beanstalk application:
Fatal error: Uncaught Error: Class 'App\PDO' not found in
/var/app/current/crawler/app/SQLConnection.php:32 Stack trace: #0
/var/app/current/crawler/init.php(18): App\SQLConnection->connect() #1
{main} thrown in /var/app/current/crawler/app/SQLConnection.php on
line 32
The app runs perfectly locally (as is usually the case with errors).
All libraries and dependencies are included in the app I uploaded.
Can anyone see where I went wrong please?
The initialzation script to create DB tables:
<?php
require 'vendor/autoload.php';
require (__DIR__.'/app/SQLConnection.php');
require (__DIR__.'/app/SQLCreateTable.php');
require (__DIR__.'/app/SQLInsert.php');
require (__DIR__.'/app/SQLRetrieve.php');
require (__DIR__.'/app/SQLDelete.php');
use App\SQLConnection;
use App\SQLCreateTable;
use App\SQLInsert;
use App\SQLRetrieve;
use App\SQLDelete;
try {
//connect to DB
$sql = new SQLCreateTable((new SQLConnection())->connect());
//get list of tables
$tables = $sql->getTableList();
//check if required tables excist
if(in_array('results',$tables) && in_array('logs',$tables)){
echo "Tables already created. You will be redirected to the home page";
header( "refresh:5;url=/index.php" );
}else {
//create tables
try {
$sql->createTables();
echo "Tables succesfully created! You will be redirected to the home page";
header( "refresh:5;url=/index.php" );
} catch (\PDOException $e) {
echo "Failed to create tables: " . $e->getMessage();
}
}
} catch (\PDOException $e) {
echo "Connection failed: " . $e->getMessage();
}
Then the SQL connection script:
<?php
namespace App;
/**
* SQL connnection
*/
class SQLConnection {
/**
* PDO instance
* #var type
*/
private $pdo;
/**
* return in instance of the PDO object that connects to the SQLite database
* #return \PDO
*/
public function connect() {
$dbhost = $_SERVER['RDS_HOSTNAME'];
$dbport = $_SERVER['RDS_PORT'];
$dbname = $_SERVER['RDS_DB_NAME'];
$charset = 'utf8' ;
$dsn = "mysql:host={$dbhost};port={$dbport};dbname={$dbname};charset={$charset}";
$username = $_SERVER['RDS_USERNAME'];
$password = $_SERVER['RDS_PASSWORD'];
if ($this->pdo == null) {
try {
// $this->pdo = new \PDO("mysql:host=localhost;dbname=crawler", "root", "");
$this->pdo = new PDO($dsn, $username, $password);
// set the PDO error mode to exception
$this->pdo->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
} catch (\PDOException $e) {
echo "Connection failed: " . $e->getMessage();
}
}
return $this->pdo;
}
}
The 'Init' script is at root level and the SQLconnection script is in a folder called "app".
Thanks guys!

Answer 1

Found the solution!
$this->pdo = new PDO($dsn, $username, $password);
Needs to change
$this->pdo = new \PDO($dsn, $username, $password);
If anyone knows exactly why this is the case, please share