- str_repeat: documentation ( source)
- implode: documentation ( source)
<?php
$result = [
['p_description' => 'Eggs', 'p_category' => 'Food', 'p_cost' => 20, 'p_stock' => 20],
['p_description' => 'Coca Cola', 'p_category' => 'Drinks', 'p_cost' => 5, 'p_stock' => 30],
];
foreach ($result as $i => $row) {
echo str_repeat(', ', (bool)$i) . '[' . implode(', ', $row) . ']';
}