run a php in the background using http

[WebRod]

Hi,

i have a script (script1) which needs to call another script (script2).
It should not wait for the answer, so script2 should run in the background.

I really need to call the php script using:
http://urlof myscript/script2.php

I don't want to use it as a cgi and use CLI.

I did a test with fsockopen and curl and a timeout of 10 seconds and call
http://urlof myscript/script1.php from my browser:
Script1 stops after 10 seconds => OK
Script2 has been called by script1 and continue to run in the background
=>OK
After 60 seconds Script2 is killed by php!! => KO :(

The script is working fine if i call http://urlof myscript/script2.php from
my browser. It needs around 120 seconds to finish.

Why is it stopping after 60 seconds when I use fsockopen and call it from
script1?

Here is the script in SCRIPT1:
$fp = fsockopen("$hos t", 80, $errno, $errstr, 30);
stream_set_time out($fp,10);
if (!$fp) {
echo "$errstr ($errno)<br />\n";
} else {
$out = "GET $path HTTP/1.1\r\n";
$out .= "Host: $host\r\n";
$out .= "Connection : Close\r\n\r\n";

fwrite($fp, $out);
$status = socket_get_stat us($fp);

while (!feof($fp) && !$status['timed_out']) {
echo fgets($fp, 128);
$status = socket_get_stat us($fp);
}
fclose($fp);
}


I have added this in SCRIPT2:
ignore_user_abo rt(FALSE); // becareful, FALSE really means it should ignore
user abort !!!
set_time_limit (120);
ini_set("max_in put_time",120);
ini_set("max_ex ecution_time",1 20);


Do you have any idea??

Thanks you for your help

Rod

[News Me]

Re: run a php in the background using http

WebRod wrote:[color=blue]
> Hi,
>
> i have a script (script1) which needs to call another script (script2).
> It should not wait for the answer, so script2 should run in the background.
>
> I really need to call the php script using:
> http://urlof myscript/script2.php
>
> I don't want to use it as a cgi and use CLI.
>
> I did a test with fsockopen and curl and a timeout of 10 seconds and call
> http://urlof myscript/script1.php from my browser:
> Script1 stops after 10 seconds => OK
> Script2 has been called by script1 and continue to run in the background
> =>OK
> After 60 seconds Script2 is killed by php!! => KO :(
>
> The script is working fine if i call http://urlof myscript/script2.php from
> my browser. It needs around 120 seconds to finish.
>
> Why is it stopping after 60 seconds when I use fsockopen and call it from
> script1?
>
> Here is the script in SCRIPT1:
> $fp = fsockopen("$hos t", 80, $errno, $errstr, 30);
> stream_set_time out($fp,10);
> if (!$fp) {
> echo "$errstr ($errno)<br />\n";
> } else {
> $out = "GET $path HTTP/1.1\r\n";
> $out .= "Host: $host\r\n";
> $out .= "Connection : Close\r\n\r\n";
>
> fwrite($fp, $out);
> $status = socket_get_stat us($fp);
>
> while (!feof($fp) && !$status['timed_out']) {
> echo fgets($fp, 128);
> $status = socket_get_stat us($fp);
> }
> fclose($fp);
> }
>
>
> I have added this in SCRIPT2:
> ignore_user_abo rt(FALSE); // becareful, FALSE really means it should ignore
> user abort !!!
> set_time_limit (120);
> ini_set("max_in put_time",120);
> ini_set("max_ex ecution_time",1 20);
>
>
> Do you have any idea??
>
> Thanks you for your help
>
> Rod
>
>[/color]

Why not exec() it?

exec("nohup /path/to/php /path/to/script2.php &");

I used something similar to launch mpg123 when I was playing around with
a web-based media player.

NM

--
convert UPPERCASE NUMBER to a numeral to reply

[Chung Leong]

Re: run a php in the background using http


"WebRod" <nomail@bouygte l.fr> wrote in message
news:42090f71$0 $26205$7a628cd7 @news.club-internet.fr...[color=blue]
> Hi,
>
> i have a script (script1) which needs to call another script (script2).
> It should not wait for the answer, so script2 should run in the[/color]
background.[color=blue]
>
> I really need to call the php script using:
> http://urlof myscript/script2.php
>
> I don't want to use it as a cgi and use CLI.
>
> I did a test with fsockopen and curl and a timeout of 10 seconds and call
> http://urlof myscript/script1.php from my browser:
> Script1 stops after 10 seconds => OK
> Script2 has been called by script1 and continue to run in the background
> =>OK
> After 60 seconds Script2 is killed by php!! => KO :(
>
> The script is working fine if i call http://urlof myscript/script2.php[/color]
from[color=blue]
> my browser. It needs around 120 seconds to finish.
>
> Why is it stopping after 60 seconds when I use fsockopen and call it from
> script1?
>
> Here is the script in SCRIPT1:
> $fp = fsockopen("$hos t", 80, $errno, $errstr, 30);
> stream_set_time out($fp,10);
> if (!$fp) {
> echo "$errstr ($errno)<br />\n";
> } else {
> $out = "GET $path HTTP/1.1\r\n";
> $out .= "Host: $host\r\n";
> $out .= "Connection : Close\r\n\r\n";
>
> fwrite($fp, $out);
> $status = socket_get_stat us($fp);
>
> while (!feof($fp) && !$status['timed_out']) {
> echo fgets($fp, 128);
> $status = socket_get_stat us($fp);
> }
> fclose($fp);
> }
>
>
> I have added this in SCRIPT2:
> ignore_user_abo rt(FALSE); // becareful, FALSE really means it should[/color]
ignore[color=blue]
> user abort !!!
> set_time_limit (120);
> ini_set("max_in put_time",120);
> ini_set("max_ex ecution_time",1 20);
>
>
> Do you have any idea??
>
> Thanks you for your help
>
> Rod
>
>[/color]

It would help if you use ignore_user_abo rt() correctly.
ignore_user_abo rt(true) means ignore user abort.

[Colin McKinnon]

Re: run a php in the background using http

News Me wrote:
[color=blue]
> WebRod wrote:[color=green]
>> Hi,
>>
>> i have a script (script1) which needs to call another script (script2).
>> It should not wait for the answer, so script2 should run in the
>> background.
>>[/color]
>
> Why not exec() it?
>
> exec("nohup /path/to/php /path/to/script2.php &");
>
> I used something similar to launch mpg123 when I was playing around with
> a web-based media player.
>[/color]

'cos:
1) the OP said he didn't want to run it from the CLI
2) it's part of the same process group so the original script will hang
around while it's running (hint: use 'at now ...' instead of '...&'

C.

[WebRod]

Re: run a php in the background using http

> It would help if you use ignore_user_abo rt() correctly.[color=blue]
> ignore_user_abo rt(true) means ignore user abort.[/color]

actually with windows xp sp2 and php 4.3.10, it's the opposite.
ignore_user_abo rt(false) means ignore user abort.

with linux
ignore_user_abo rt(true) means ignore user abort.


Rod

[NC]

Re: run a php in the background using http

WebRod wrote:[color=blue]
>
> i have a script (script1) which needs to call another script[/color]
(script2).[color=blue]
> It should not wait for the answer, so script2 should run in the[/color]
background.[color=blue]
>
> I really need to call the php script using:
> http://urlof myscript/script2.php
>
> I don't want to use it as a cgi and use CLI.[/color]

OK, then use wget and fork its execution into background.
[color=blue]
> Why is it stopping after 60 seconds when I use fsockopen
> and call it from script1?[/color]

Perhaps your system has an execution time limit not overridable
from the scripts?

Cheers,
NC

[Chung Leong]

Re: run a php in the background using http


"WebRod" <nomail@bouygte l.fr> wrote in message
news:4209f575$0 $5212$7a628cd7@ news.club-internet.fr...[color=blue][color=green]
> > It would help if you use ignore_user_abo rt() correctly.
> > ignore_user_abo rt(true) means ignore user abort.[/color]
>
> actually with windows xp sp2 and php 4.3.10, it's the opposite.
> ignore_user_abo rt(false) means ignore user abort.
>
> with linux
> ignore_user_abo rt(true) means ignore user abort.[/color]

I don't know where you got your info from, pal, but it is wrong.

main.c, line 1759

/* {{{ php_handle_abor ted_connection
*/
PHPAPI void php_handle_abor ted_connection( void)
{
TSRMLS_FETCH();

PG(connection_s tatus) = PHP_CONNECTION_ ABORTED;
php_output_set_ status(0 TSRMLS_CC);

if (!PG(ignore_use r_abort)) {
zend_bailout();
}
}
/* }}} */

[News Me]

Re: run a php in the background using http

Colin McKinnon wrote:[color=blue]
> News Me wrote:
>
>[color=green]
>>WebRod wrote:
>>[color=darkred]
>>>Hi,
>>>
>>>i have a script (script1) which needs to call another script (script2).
>>>It should not wait for the answer, so script2 should run in the
>>>background .
>>>[/color]
>>
>>Why not exec() it?
>>
>> exec("nohup /path/to/php /path/to/script2.php &");
>>
>>I used something similar to launch mpg123 when I was playing around with
>>a web-based media player.
>>[/color]
>
>
> 'cos:
> 1) the OP said he didn't want to run it from the CLI
> 2) it's part of the same process group so the original script will hang
> around while it's running (hint: use 'at now ...' instead of '...&'[/color]

1) The OP is not running it from the command line, the webserver is.
2) When I ran the script on a Fedora Core System, it didn't hang.

NM

--
convert UPPERCASE NUMBER to a numeral to reply

[WebRod]

Re: run a php in the background using http

> I don't know where you got your info from, pal, but it is wrong.

Actually i did a small test to ckeck that.
The same test (script 1 is calling script2 using fsockopen and a small
timeout):

ignore_user_abo rt(true)
- windows => script2 stops WHEN script 1 stops (!!)
- linux => script2 will stop only at the end. (as expected)

ignore_user_abo rt(false)
- windows => script2 will stop only at the end. (!!)
- linux => script2 stops WHEN script 1 stops (as expected)

Maybe i have a corrupted version of php??
I have windows XP SP2, php 4.3.10

Rod

[WebRod]

Re: run a php in the background using http

[color=blue]
> 1) The OP is not running it from the command line, the webserver is.[/color]
Actually it's the same thing.
I explain you why I don't want to use it. My web server is on OVH.COM.
My script running from the CLI (from telnet or exec) use too many
ressources (!!) on the server and they kill it and send me an email to stop
this script or they will disable my website!!
The same script (I just change the extension from .cg to .ph and remove the
first line which specify the php path) is running very well, they don't kill
it, no problem!!

They don't explain me why there is a difference, so i don't want to use the
CLI anymore with them.

[WebRod]

Re: run a php in the background using http

Hi to all,

I have solved the problem.
The buffer was full because my script (script2) was displaying some output.

When the buffer is full, php stops the execution of the script!
I guess it happens because script1 (the caller) is already stopped

So i have removed all the "echo" and now it works like a charm!!!!

Rod

[Chung Leong]

Re: run a php in the background using http

"WebRod" <nomail@bouygte l.fr> wrote in message
news:420b1805$0 $5222$7a628cd7@ news.club-internet.fr...[color=blue][color=green]
> > I don't know where you got your info from, pal, but it is wrong.[/color]
>
> Actually i did a small test to ckeck that.
> The same test (script 1 is calling script2 using fsockopen and a small
> timeout):
>
> ignore_user_abo rt(true)
> - windows => script2 stops WHEN script 1 stops (!!)
> - linux => script2 will stop only at the end. (as expected)
>
> ignore_user_abo rt(false)
> - windows => script2 will stop only at the end. (!!)
> - linux => script2 stops WHEN script 1 stops (as expected)
>
> Maybe i have a corrupted version of php??
> I have windows XP SP2, php 4.3.10
>
> Rod
>[/color]

Your test was probably faulty. PHP only knows a connection is broken when it
tries to output data to the network socket. A snippet like the following
will run to the end despite a user abort since there isn't enough data to
overfill the default 4096 byte buffer:

for($i = 0; $i < 120; $i++) {
echo "Hello";
sleep(1);
}

[WebRod]

Re: run a php in the background using http

> Your test was probably faulty.

I don't think so
[color=blue]
> PHP only knows a connection is broken when it
> tries to output data to the network socket.[/color]

You're absoluty right, i know that point.
[color=blue]
>A snippet like the following[/color]
[..]

You're right, in that case could you provide a "right" script?

What is sure is that script2 (the real one) returns a lot of information.
(1) If I have ignore_user_abo rt(true), then script2 stops WHEN script 1
stops.
(2) If I have ignore_user_abo rt(false), then script2 will sotp at the end

What is the difference between (1) and (2)?
The flag and the duration of the script. (the content of the script is the
same, if it was a problem of empty buffer as you said, (1) and (2) will both
stop only at the end of the script)

But as i said it could only be a problem with [php 4.3.10/xp sp2] or a
specific problem on my machine (??)

Rod