hhvm | A virtual machine for executing programs written in Hack

I am trying an experiment to bring up a Drupal 7 installation in Repo authoritative mode under HHVM 3.21 (which still supported PHP - latest version does not). (May sound crazy, but bear with me here.) Server is Ubuntu 18.04 running apache2 with mod_proxy, mod_proxy_fcgi. I am new to HHVM, so I have probably made an obvious mistake.

I started with an index.php "hello world" to ensure that I had the general configuration working. That works fine, regardless of the contents of /var/www/html/index.php (per https://docs.hhvm.com/hhvm/advanced-usage/repo-authoritative)

I am using hhvm --hphp -thhbc -o /var/cache/hhvm file_list.txt to create the repo, which is then chown'ed to www-data. (The same file I copy to /var/www/.hhvm.hhbc, since it seems that the server wants a copy there... this question I will solve later...)

Problem #1: I have left the entire file tree in place in /var/www/html, but mod_rewrite is not working correctly. I can use the site without problems if I use the "unpretty" URLs (?q=admin/config), but not rewritten URLs.

Problem #2: In principle HHVM in repo authoritative mode should be able to serve the entire image from the repo file if only the index.php is in place or if I specify hhvm.server.allowed_files[] = index.php, but when I try this, the server 404's.

What follows is a ton of relevant info from config files. I am happy to add more information as needed to assist with finding my error/omission, in case I have forgotten anything here. Thank you for reading this far!

/etc/hhvm/server.ini:

A site we are using is running an older HHVM version. Looking at the documentation of PHP function setcookie(), there is two signatures for parameters.

To summarize the issue why I cannot use setcookie() is because this version does not use the $options array available of PHP7.3. When trying to use some of the alternative solutions by concatenating samesite to path will crash HHVM. Using this alternate method using normal PHP works correctly as expected.

There seems to be a slight difference between HHVM behaviour here with cookies compared to PHP.

So this question is about header() and not about setcookie() because I can't use it, there are slight difference in how HHVM (the version running) handles cookies.

NOTE: This is a Magento 1 site --- and upgrading to HHVM 3.30+ breaks everything so that is also not an option - I have tried this already.

So I managed to set the cookie using header() function by concatenating all the properties.

I'd like to use the Slack API to delete old files from my workspace, as we are running out of space to upload new ones.

I registered an application, installed it on the target workspace, granted the application the files:read and files:write permissions, and then generated a bot token for the application that has the prefix xoxb.

With this token, I made a GET request to the files.list endpoint using Postman:

Let's say, I have a vec containing a list of integers that may be non-continuous (due to element being removed from database).

Example:

I'm trying the following setup and am getting this error:

I am trying to install and configure Facebook programming language Hack and HHVM on Windows, probably Windows 7. I could not find any solution on it. I saw a Bitnami link which suggest HHVM Installers.

source

I have downloaded the installer files HHVM installer files but it cannot run on Windows due .run extension filename. How can I achieve this using HACK and HHVM installations on Windows 7.

I downloaded vagrant for Windows at this link https://www.vagrantup.com/downloads

I have just installed Vagrant on Windows 7 64 bit. When I type vagrant up to start it, it displays the following error below at command prompt. How do I upgrade from version 2 to 3

C:\hhvm-vagrant>vagrant up

Vagrant failed to initialize at a very early stage:

The version of powershell currently installed on this host is less than the required minimum version. Please upgrade the installed version of powershell to the minimum required version and run the command again.

Installed version: 2

Minimum required version: 3

I'm trying to play with xhp and I'm finding that running the one xhp example I could find https://github.com/hhvm/xhp-js-example is issuing an error \nFatal error: Uncaught Error: Found top-level code in :\nStack trace:\n#0 {main} when following the README as is on HHVM 4.71. Removing require_once(__DIR__.'/vendor/autoload.php'); resolves the top-level code error but I'm now stuck with the error \nFatal error: Uncaught Error: unknown class xhp_x__element in :\nStack trace:\n#0 /Users/user/code/xhp-js-example/example.php(12): ()\n#1 {main}. I've tried to change the code in example.php to the one found here:

I am pretty new to hacklang. I have a piece of code (copied from the HSL github page)