Calculate the group access list

# posix_initgroups

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

posix_initgroups — Calculate the group access list

### Description

posix_initgroups(string `$username`, int `$group_id`): bool

Calculates the group access list for the user specified in name.

### Parameters

`username`

  The user to calculate the list for.

`group_id`

  Typically the group number from the password file.

### Return Values

Returns `true` on success or `false` on failure.

### See Also

- The Unix manual page for initgroups(3).

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