Re: [PHP] PHP CLI setting cooked terminal mode
On 11 Sep 2013, at 17:37, Alain Williams 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 . 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/
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Re: [PHP] PHP CLI setting cooked terminal mode
On Wed, Sep 11, 2013 at 05:45:45PM +0100, Stuart Dallas wrote: > On 11 Sep 2013, at 17:37, Alain Williams wrote: > Make sure output buffering is off by putting this at the top of your script: > > while(ob_end_clean()); Sorry, that does not fix the problem - but thanks for trying. -- Alain Williams Linux/GNU Consultant - Mail systems, Web sites, Networking, Programmer, IT Lecturer. +44 (0) 787 668 0256 http://www.phcomp.co.uk/ Parliament Hill Computers Ltd. Registration Information: http://www.phcomp.co.uk/contact.php #include -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] PHP CLI setting cooked terminal mode
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 . 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.
--
Alain Williams
Linux/GNU Consultant - Mail systems, Web sites, Networking, Programmer, IT
Lecturer.
+44 (0) 787 668 0256 http://www.phcomp.co.uk/
Parliament Hill Computers Ltd. Registration Information:
http://www.phcomp.co.uk/contact.php
#include
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
