Re: PHP CLI setting cooked terminal mode

On 11 Sep 2013, at 17:37, Alain Williams <addw@phcomp.co.uk> wrote: > Hi, > > I am running a PHP script at the command line and piping the output through less: > > ./myScript | less > > Since less is an interactive program it puts the terminal into 'raw' mode so > that it can read characters one at a time. However, when I do the above I find > that the commands that I type to less are echoed back to me and not acted on > until I type <RETURN>. This is not as it should be. > > The sript is not doing anything really clever, just looking at a few files and > printing out directory contents, time stamps, ... > > If I run the script under strace I see: > > ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0 > ioctl(0, SNDCTL_TMR_STOP or TCSETSW, {B38400 opost isig icanon echo ....}) = 0 > > > I can get it to not do this by connect stdout to /dev/null: > > ./myScript > /dev/null | less > > another way of getting it to work is (and this shows that it really is PHP that > is messing the tty modes): > > ./myScript > /dev/null | (sleep 10;less) > > However: PHP should not set the terminal to cooked mode in the first place > > Is there any way in which I can get PHP to not do this ? > > TIA > > I am running PHP 5.3.3 on CentOS 6. Make sure output buffering is off by putting this at the top of your script: while(ob_end_clean()); -Stuart -- Stuart Dallas 3ft9 Ltd http://3ft9.com/