How can PHP be used to play a wav file without a player?

To play a wav file without a player using PHP, you can use the `readfile()` function to read the wav file and output it directly to the browser. This will allow the browser to handle the file and play it using its built-in audio player.

<?php
$wav_file = 'path/to/your/file.wav';

header('Content-Type: audio/wav');
header('Content-Disposition: inline; filename="'.basename($wav_file).'"');
header('Content-Length: ' . filesize($wav_file));

readfile($wav_file);
?>