Fatal error: openssl signature could not be verified

[mkanet]

I am using the PHP 8.0 64bit on Windows 10

When I type:
php jupyter-php-installer.signed.phar install

with jupyter-php-installer.signed.phar.pubkey in the same directory

I get the error:

Fatal error: Uncaught PharException: phar "C:\Program Files\PHP\jupyter-php-installer.signed.phar" openssl signature could not be verified: openssl not loaded in C:\Program Files\PHP\jupyter-php-installer.signed.phar:9
Stack trace:
#0 C:\Program Files\PHP\jupyter-php-installer.signed.phar(9): Phar::mapPhar('jupyter-php-ins...')
#1 {main}
  thrown in C:\Program Files\PHP\jupyter-php-installer.signed.phar on line 9

I didn't see any instructions or wiki that would explain the correct way to install it.

Most importantly, is Jupyter-PHP still being supported/developed? This repository appears to be abandoned years ago.

[tina4stack]

Please see I have created a way to install from the source code using composer. As long as PHP exe is in your path it should work. Looking at your error though your probably find you don't have openssl installed on windows. That is something that we take for granted on other operating systems.