Bila anda mendapati error undefined function posix_getpid pada aplikasi PHP anda, baik menggunakan Framework (Laravel, CodeIgniter)
PHP Fatal error: Uncaught Error: Call to undefined function Laravel\Octane\Swoole\Handlers\posix_getpid() in /home/tommy/git/sms-gateway/vendor/laravel/octane/src/Swoole/Handlers/OnWorkerStart.php:35 Stack trace: #0 /home/tommy/git/sms-gateway/vendor/laravel/octane/bin/swoole-server(89): Laravel\Octane\Swoole\Handlers\OnWorkerStart->__invoke() #1 /home/tommy/git/sms-gateway/vendor/laravel/octane/bin/swoole-server(89): {closure}() #2 [internal function]: {closure}() #3 /home/tommy/git/sms-gateway/vendor/laravel/octane/bin/swoole-server(163): Swoole\Server->start() #4 {main} thrown in /home/tommy/git/sms-gateway/vendor/laravel/octane/src/Swoole/Handlers/OnWorkerStart.php on line 35 Fatal error: Uncaught Error: Call to undefined function Laravel\Octane\Swoole\Handlers\posix_getpid() in /home/tommy/git/sms-gateway/vendor/laravel/octane/src/Swoole/Handlers/OnWorkerStart.php:35 PHP Fatal error: Uncaught Error: Call to a member function handleTick() on null in /home/tommy/git/sms-gateway/vendor/laravel/octane/bin/swoole-server:138
hal tersebut terjadi karena anda belum menginstall module php-posix. Cara untuk menginstallnya
# debian/ubuntu sudo apt install php-posix # fedora # tergantung dari versi PHP yang digunakan sudo dnf install php80-php-posix
setelah menginstall module tersebut, jalankan kembali aplikasi PHP.