$peoples = array( array( 'name' => 'Halliday', 'email' => 'halliday@example.com' ), array( 'name' => 'Jesse', 'email' => 'jesse@example.com' ), array( 'name' => 'Aiden', 'email' => 'aiden@example.com' ) ); ?>
<script type="text/javascript"> let peoplesArr = <?php echo json_encode($peoples);?>; console.log(peoplesArr[1].name); // Output: Jesse </script>
<script type="text/javascript"> console.log(peoplesArr[2][1]); // Output: aiden@example.com </script>