Online PHP editor | refs for HDYGp

<?php $recordings = [ 'step_1_part_1' => [ 'required' => 'true', 'format' => 'wav' ], 'step_2_part_1' => [ 'required' => 'true', 'format' => 'wav' ], 'step_3_part_1' => [ 'required' => 'false', 'format' => 'wav' ], 'step_4_part_1' => [ 'required' => 'false', 'format' => 'wav' ], 'step_4_part_2' => [ 'required' => 'false', 'format' => 'wav' ], 'step_4_part_3' => [ 'required' => 'false', 'format' => 'wav' ], 'step_4_part_4' => [ 'required' => 'false', 'format' => 'wav' ], 'step_4_part_5' => [ 'required' => 'false', 'format' => 'wav' ], 'step_5_part_1' => [ 'required' => 'false', 'format' => 'wav' ], 'step_6_part_1' => [ 'required' => 'false', 'format' => 'wav' ] ]; echo json_encode($recordings);