[Windows/Linux] PHP “exec” missing environment variable causing command not to run

In a recent project, I am finding way to display current git branch on the backend dashboard.
Without a application dependent library, executing CLI git seems to be the fastest way.
i.e. The exactly same syntax as we use in bash/cmd/powershell.

However, it worked in production/staging Linux machine, but not in local Windows machine.
It does work if I specify the absolute path C:\Program Files\Git\bin\git.exe, but it’s not optimal because it will be machine dependent.

After a while, I figure out the environment PATH variable is missing in Windows that cause git not being picked up.
The trick is, add this line before exec call to:

Ubuntu Postfix Mail Server 設定筆記 (八) 使用 MySQL 管理 User, Domain 和 Alias

本系列第八篇: 使用 MySQL 管理 User, Domain 和 Alias

早在第二篇我們設定了 Dovecot 的 userdb 和 passdb 的靜態 Database。
但每次新增 Email 用戶都要 SSH 進 Server 修改 /etc/dovecot/passwd 都是太麻煩了。
這次把 Dovecot userdb 和 passdb 都放進 MySQL, 方便其他程式管理 Email 用戶。

Postfix 的 virtual_mailbox_domains 負責那些 domain 的 Email 可以轉交給 Dovecot LMTP
virtual_alias_maps 負責 Email 別名轉寄, 這裡也一併把它放進 MySQL 管理

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