how to iterate arraylist in php - php

Question

What my code does:
I am returning arraylist from a php method -->method name:- getSubjectInfo().
And in my (Index.php) page i am getting this arraylist values in a $results variable. Here i am stuck how to iterate the arraylist values in the index.php page?.
My Problem: How to iterate the arraylist ($results) in my index.php page? Please see my below mention code
i have used $results = $sub_info->fetchAll(PDO::FETCH_OBJ); in my method for generating list.
index.php
<?php
include_once '../../classes/conn/connection.php';
include_once '../../classes/setups/Subdetails_setup.php';
$con = new connection();
$info = new Subdetails_setup($con);
$results = $info->getSubjectInfo();
echo $results; //this is returning a list of objects. My problem is how can i iterate these values
?>
and i tried like this echo (each($results)); but this is printing my values in a single line
like this:- Subject Name 1 FIction1Non FIction2
& My Subdetails_setup.php Class is having method getSubjectInfo() :-
function getSubjectInfo()
{
$sub_info = $this->con->prepare("SELECT * FROM subjectdetails");
$sub_info->execute();
$results = $sub_info->fetchAll(PDO::FETCH_OBJ);
foreach ($results as $key)
{
echo $key->subject_name;
echo $key->subject_id;
}
// Return the result array
return $results;
}
Please help me for this.
-Ashutosh

Answer 1

This code in your Subdetails_setup.php needs to be removed, and put on the index.php. You don't need it in subdetails, just return the result.
foreach ($results as $key)
{
echo $key->subject_name;
echo $key->subject_id;
}
If you want to check if it's all working, change your index.php and add this line:
$results = $info->getSubjectInfo();
var_dump($results);
Now that var_dump() works, replace the line with the earlier code, modified to show a table:
foreach ($results as $key)
{
echo "<tr>";
echo "<td>".$key->subject_name."</td>";
echo "<td>"$key->subject_id."</td>";
echo "</tr>";
}