Re: PHP vs Apache

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On 11.07.2022 at 21:02, paulf@xxxxxxxxxxxxxxxxx wrote:

> I have two PHP apps on the same (local) box. One handles financial
> transactions (A) and the other handles budgeting (B). I want B to query
> A for information for the budget. So I'm technically querying a remote
> PHP script from within a different "site" and PHP script on the same
> box. Like this:
> http://localhost:8000/budget/get_expenses.php queries
> http://localhost:8000/finance/expenses.php
> I hope that makes sense. I have "allow_url_fopen = On" in my php.ini.
> There are three ways I've seen to do this:
> file_get_contents()
> fopen()
> curl*
> Curl is complex, so I haven't tried it yet.
> I've tried file_get_contents() via the PHP development server. Doesn't
> work. Generates an error.
> I've tried fopen() on the PHP development server, but it too fails with
> the same error. The error looks like this:
> [Mon Jul 11 14:45:26 2022] PHP Warning:
> fopen(http://localhost:8000/slowen/index.php): Failed to open stream:
> HTTP request failed! in /home/paulf/public_html/budget/test.php on line
> 7
> The call to the "remote" script is on line 7 in test.php above.
> Here's the wrinkle: fopen() works if I'm using the Apache server.
> For what it's worth, the script being queried should return a PHP array
> in JSON format. The box is an Arch current box.
> Can anyone explain why Apache can do this, but PHP's dev server can't?

>From the docs[1]:

| The web server runs only one single-threaded process, so PHP
| applications will stall if a request is blocked.

I assume that this is the problem.  If it is, you can work around:

| You can configure the built-in webserver to fork multiple workers in
| order to test code that requires multiple concurrent requests to the
| built-in webserver. Set the PHP_CLI_SERVER_WORKERS environment
| variable to the number of desired workers before starting the server.
| This is not supported on Windows.

[1] <>

Christoph M. Becker

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