php-command
----------write data in file /var/www/html/command.txt ---------------
<?php
$myfile = fopen("command.txt", "w") or die("Unable to open file!");
$txt = "led1\n";
fwrite($myfile, $txt);
$txt = "on\n";
fwrite($myfile, $txt);
fclose($myfile);
echo "OK---led on done";
?>