PHP Program to create an associative array

<?php
    //creating student array with keys & values
    $std = array('id' => "101", 'name' => "Amit", 'course' => "B.Tech");

    //printing elemenets
    print ("std elements...\n");
    print ("Id = " . $std['id'] . " Name = " . $std['name'] . " Course = " . $std['course']);
    
    //printing array using for each loop
    
    //printing complete array
    print ("std...\n");
    print_r($std);
?>

Output

std elements...
Id = 101 Name = Amit Course = B.Techstd...
Array
(
    [id] => 101
    [name] => Amit
    [course] => B.Tech
)