olleharstedt/gist:9b1f2362ea50b85439abddf05dd1a542

## gistfile1.txt
<?php

$command = sprintf(
    'echo -e "%s" | nc -U /var/run/docker.sock',
    "GET /info HTTP/1.1\r\nHost: localhost\r\n"
);
echo '<pre>'; var_dump($command); echo '</pre>';
var_dump(exec($command));
	<?php

	$command = sprintf(
	'echo -e "%s" \| nc -U /var/run/docker.sock',
	"GET /info HTTP/1.1\r\nHost: localhost\r\n"
	);
	echo '<pre>'; var_dump($command); echo '</pre>';
	var_dump(exec($command));