command line interface - PHP CLI - Ask for User Input or Perform Action after a Period of Time -

i trying create php script, ask user select option: like:

echo "type number of choice below:";  echo "  1. perform action 1"; echo "  2. perform action 2"; echo "  3. perform action 3 (default)";  $menuchoice = read_stdin();  if ( $menuchoice == 1) {     echo "you picked 1";     } elseif ( $menuchoice == 2) {     echo "you picked 2";     } elseif ( $menuchoice == 3) {     echo "you picked 3";     } 

this works nicely 1 can perform actions based on user input.

but expand if user does not type within 5 seconds, default action run automatically without further action user.

is @ possible php...? unfortunately beginner on subject.

any guidance appreciated.

thanks,

hernando

you can use stream_select() that. here comes example.

echo "input ... (5 sec)\n";  // file descriptor stdin  $fd = fopen('php://stdin', 'r');  // prepare arguments stream_select() $read = array($fd); $write = $except = array(); // don't care $timeout = 5;  // wait maximal 5 seconds input if(stream_select($read, $write, $except, $timeout)) {     echo "you typed: " . fgets($fd) . php_eol; } else {     echo "you typed nothing\n"; }