Re: a trivial little function (PostToHost)

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tedd wrote on 10/04/2009 08:51:13 AM:

> [PHP] a trivial little function (PostToHost)
>
> tedd
>
> to:
>
> php-general
>
> 10/04/2009 09:05 AM
>
> Hi gang:
>
> The following 'trivial little' function I'm trying to get my head
around:
>
> http://aspn.activestate.com/ASPN/Mail/Message/php-general/12 59426
>
> The article states:
>
> Either way, just generate your XML string and fire it at the remote
> machine. You will need to write code to handle the response, obviously.
>
> Okay, so how does one handle the response? I understand that one
> should have the script at host A sending data to host B, but I can't
> seem to get it to work. Does anyone have an example that works?
>
> My confusion here -- is the data sent by the function at host A
> accessible by host B via a POST, or does it write to a writable file,
> or what?
>
> Any help would be appreciated.
>
> Cheers,
>
> tedd

Yes, this is just a standard HTTP POST, just like what a browser does when
you click a submit button. So, there needs to be a script that handles a
standard POST on server B. It will send whatever response it is designed
to. Just think of server A as a browser submitting a form and server B is
you writing a PHP script to handle the form submission :)

Typically, I write the "fgets" line a little differently. Instead of:

while(!feof($fp)) {
echo fgets($fp, 128);
}

I use:

$response = '';
while(!feof($fp)) {
$response .= fgets($fp, 128);
}
// parse the response and do something

Kirk
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Re: a trivial little function (PostToHost)

At 12:27 PM -0600 10/4/09, Kirk.Johnson@zootweb.com wrote:
>tedd wrote on 10/04/2009 08:51:13 AM:
>
>> [PHP] a trivial little function (PostToHost)
>>
>> tedd
>>
>> to:
>>
>> php-general
>>
>> 10/04/2009 09:05 AM
>>
>> Hi gang:
>>
>> The following 'trivial little' function I'm trying to get my head
>around:
>>
>> http://aspn.activestate.com/ASPN/Mail/Message/php-general/12 59426
>>
>> The article states:
>>
>> Either way, just generate your XML string and fire it at the remote
>> machine. You will need to write code to handle the response, obviously.
>>
>> Okay, so how does one handle the response? I understand that one
>> should have the script at host A sending data to host B, but I can't
>> seem to get it to work. Does anyone have an example that works?
>>
>> My confusion here -- is the data sent by the function at host A
>> accessible by host B via a POST, or does it write to a writable file,
>> or what?
>>
>> Any help would be appreciated.
>>
>> Cheers,
>>
>> tedd
>
>Yes, this is just a standard HTTP POST, just like what a browser does when
>you click a submit button. So, there needs to be a script that handles a
>standard POST on server B. It will send whatever response it is designed
>to. Just think of server A as a browser submitting a form and server B is
>you writing a PHP script to handle the form submission :)


Hi Kirk:

Okay, but what specifically is that script?

I have written a script at server B to print_r($_POST), but I don't
get anything other than log errors (see below*).

Here's an example:

http://www.webbytedd.com/aa/send-form/index.php

You can enter anything into the webbytedd.com form (Server A) and
click submit, but the php1.net form (Server B) won't show anything --
what am I doing wrong?

Cheers,

tedd

* Log errors: [05-Oct-2009 15:08:54] PHP Warning: PHP Startup:
mm_create(0, /session_mm_cgi-fcgi522) failed, err mm:core: failed to
open semaphore file (Permission denied) in Unknown on line 0
--
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http://sperling.com http://ancientstones.com http://earthstones.com

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Re: a trivial little function (PostToHost)

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tedd wrote on 10/05/2009 01:44:00 PM:

[snip]

> Hi Kirk:
>
> Okay, but what specifically is that script?
>
> I have written a script at server B to print_r($_POST), but I don't
> get anything other than log errors (see below*).
>
> Here's an example:
>
> http://www.webbytedd.com/aa/send-form/index.php
>
> You can enter anything into the webbytedd.com form (Server A) and
> click submit, but the php1.net form (Server B) won't show anything --
> what am I doing wrong?
>
> Cheers,
>
> tedd
>
> * Log errors: [05-Oct-2009 15:08:54] PHP Warning: PHP Startup:
> mm_create(0, /session_mm_cgi-fcgi522) failed, err mm:core: failed to
> open semaphore file (Permission denied) in Unknown on line 0

I am not familiar with this PHP error. Was this on server B? With "PHP
Startup" in the error message, it looks like a setup problem on server B,
rather than being related to the PostToHost operation.

Once that error is cleared up, start simple for the PostToHost piece. Just
have the script on server B return "hello,world!", then echo out that
response in the script on server A. The PostToHost function you found is
correct. Make sure you are passing in valid arguments, so that you end up
with a valid HTTP POST message.

Kirk

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