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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

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