Speeding up command line scripts

[Snyke]

Hi.
I have a command line script which works really fine, the only problem
is that it take *really* long for the first output to be printed on
screen.
Since I also get some HTTP headers I'm suspecting that some sort of
output buffering is used.
How can I tell PHP to flush the buffer automatically (without using
flush(); after every print or echo) and to remove the headers?

[steve]

Re: Speeding up command line scripts

"Snyke" wrote:[color=blue]
> Hi.
> I have a command line script which works really fine, the only[/color]
problem[color=blue]
> is that it take *really* long for the first output to be printed on
> screen.
> Since I also get some HTTP headers I’m suspecting that some sort
> of
> output buffering is used.
> How can I tell PHP to flush the buffer automatically (without using
> flush(); after every print or echo) and to remove the headers?[/color]

Snyke, why do you have http headers in command line php. It is not
needed. At a minimum, you can put in some conditional statements to
take them out if running from command line (there are ways to
auto-detect running from command line vs. from browser).

Once that is done, it is much easier to isolate the problem.

By the way, I have a ton of command line php code, and never seen this
problem, so I suspect something is going on before the first echo...
you may want to take out the code, or put in some timing echo
statements.

steve

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[Pjotr Wedersteers]

Re: Speeding up command line scripts

Snyke wrote:[color=blue]
> Hi.
> I have a command line script which works really fine, the only problem
> is that it take *really* long for the first output to be printed on
> screen.
> Since I also get some HTTP headers I'm suspecting that some sort of
> output buffering is used.
> How can I tell PHP to flush the buffer automatically (without using
> flush(); after every print or echo) and to remove the headers?[/color]

You can disable outputbuffering in the php.ini file (output_bufferi ng = off)
and also specify if you want php to flush each time an echo or print is
encountered.(im plicit_flush = on)

But It sounds like something else is 'wrong' if it takes that long...
HTH
Pjotr

[Colin McKinnon]

Re: Speeding up command line scripts

Snyke wrote:
[color=blue]
> Hi.
> I have a command line script which works really fine, the only problem
> is that it take *really* long for the first output to be printed on
> screen.
> Since I also get some HTTP headers I'm suspecting that some sort of
> output buffering is used.
> How can I tell PHP to flush the buffer automatically (without using
> flush(); after every print or echo) and to remove the headers?[/color]

to tell php to omit the headers:
php -q script.php
or if you've got an embedded interpreter directive:
#!/usr/bin/php -q

or if you're still using Microsoft Operating systems:
php.exe -q script.php

to flush the output,
flush();

(note this will only flush up to the last newline char)

HTH

C.

[Norman Peelman]

Re: Speeding up command line scripts

"Colin McKinnon" <colin.deleteth is@andthis.mms3 .com> wrote in message
news:cevi6g$701 $3$830fa17d@new s.demon.co.uk.. .[color=blue]
> Snyke wrote:
>[color=green]
> > Hi.
> > I have a command line script which works really fine, the only problem
> > is that it take *really* long for the first output to be printed on
> > screen.
> > Since I also get some HTTP headers I'm suspecting that some sort of
> > output buffering is used.
> > How can I tell PHP to flush the buffer automatically (without using
> > flush(); after every print or echo) and to remove the headers?[/color]
>
> to tell php to omit the headers:
> php -q script.php
> or if you've got an embedded interpreter directive:
> #!/usr/bin/php -q
>
> or if you're still using Microsoft Operating systems:
> php.exe -q script.php
>
> to flush the output,
> flush();
>
> (note this will only flush up to the last newline char)
>
> HTH
>
> C.[/color]

Just throw an 'ob_end_flush() ;' at the start of your script... NOT after
every echo or print.

Norm


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