php8 - parallel - PHP Startup: Unable to load dynamic library

Question

I am unable to make php_parallel ( https://www.php.net/manual/en/parallel.setup.php ) extension to work.

This is what I have done:

Downloaded PHP 8.1.7 64bit Thread Safe into "D:\PHP8TS"
Downloaded parallels 1.1.4 from "https://windows.php.net/downloads/pecl/releases/parallel/1.1.4/php_parallel-1.1.4-7.4-ts-vc15-x64.zip"
Put file "pthreadVC2.dll" into "D:\PHP8TS"
Put file "php_parallel.dll" into "D:\PHP8TS\ext" dir
Put "extension=D:\PHP8TS\ext\php_parallel.dll" line into php.ini
Put "D:\PHP8TS\pthreadVC2.dll" into PATH environment variable
Execute "D:\PHP8TS\php.exe -v" with result:

PHP Warning: PHP Startup: Unable to load dynamic library 'D:\PHP8TS\ext\php_parallel.dll' (tried: D:\PHP8TS\ext\php_parallel.dll (The specified module could not be found), C:\php\ext\php_D:\PHP8TS\ext\php_parallel.dll.dll (The specified module could not be found)) in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library 'D:\PHP8TS\ext\php_parallel.dll' (tried: D:\PHP8TS\ext\php_parallel.dll (The specified module could not be found), C:\php\ext\php_D:\PHP8TS\ext\php_parallel.dll.dll (The specified module could not be found)) in Unknown on line 0 PHP 8.1.7 (cli) (built: Jun 7 2022 21:45:53) (ZTS Visual C++ 2019 x64) Copyright (c) The PHP Group Zend Engine v4.1.7, Copyright (c) Zend Technologies

What have I done wrong? Was anyone successful in running this extension on PHP 8.1.7?

By this way, I was sucessfully able to add other PHP extensions (for example pdo_sqlite).

In point 6 the PATH is missing an l at the end? I'm sure that's just a typo. But that's the first thing I would check for: Typos and capitalization. — KIKO Software
– KIKO Software, Commented Jun 9, 2022 at 8:22
Whoops yes, thanks, I had in wrong in environment path too. But fixing that haven't solved it. (tried restart too). Other paths/capitalization are correct. — user10099
– user10099, Commented Jun 9, 2022 at 8:29
Since PHP is looking for C:\php\ext\php_D:\PHP8TS\ext\php_parallel.dll.dll I would try to place your DLL files into C:\php\ext and in ini file just put extensions=parallel.dll (or just parallel) — Justinas
– Justinas, Commented Jun 9, 2022 at 8:29
PHP is looking in the right location (it's saying "tried D:\PHP8TS\ext\php_parallel.dll"). The other location is just fallback location. And If I try other extensions, for example "extension=D:\PHP8TS\ext\php_pdo_sqlite.dll", it's loading that correctly. — user10099
– user10099, Commented Jun 9, 2022 at 8:32
I'm just saying this, without any knowledge of this library, but could it be a permissions issue? This has often bugged me. — KIKO Software
– KIKO Software, Commented Jun 9, 2022 at 8:34

NinjaScareCrow · Accepted Answer · 2023-01-23 01:05:20Z

0

Parallel 1.1.4 is for PHP 7.2, 7.3, and 7.4. Unfortunately you cannot use it for PHP8.0+.

You need to use Parallel 1.2.1. So far I haven't been able to find a compiled windows binary for this version though :(

answered Jan 23, 2023 at 1:05

NinjaScareCrow

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