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pcntl_unshare

(PHP 7 >= 7.4.0, PHP 8)

pcntl_unshare — Dissociates parts of the process execution context

Description

pcntl_unshare(int $flags): bool

pcntl_unshare() allows a process to disassociate parts of its execution context that are currently being shared with other processes. The main use of pcntl_unshare() is to allow a process to control its shared execution context without creating a new process.

Parameters

flags

The flags parameter is a bitmask that specifies which parts of the execution context should be unshared. This parameter is specified by ORing together zero or more of the CLONE_* constants:

  • CLONE_NEWNS
  • CLONE_NEWIPC
  • CLONE_NEWUTS
  • CLONE_NEWNET
  • CLONE_NEWPID
  • CLONE_NEWUSER
  • CLONE_NEWCGROUP

Return Values

Returns 0 on success, -1 otherwise. On failure it sets an error code, that can be retrieved with pcntl_get_last_error().

See Also

© 1997–2021 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.pcntl-unshare.php

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Last Updated 2022-04-25T15:10:39Z