Boolean hasOpenHandles() Returns if the current state has open file handles or pipes.

close() Closes file handles and pipes.

ProcessBuilder setPrefix(string|array $prefix)

string[] readAndWrite(bool $blocking, bool $close = false) Reads data in file handles and pipes

bool isStarted() Checks if the process has been started with no regard to the current state.

unblock() Sets non-blocking mode on pipes.

close() Closes file handles and pipes.

bool areOpen() Returns if the current state has open file handles or pipes.

int run(callable|null $callback = null) Runs the process. The callback receives the type

string getErrorOutput() Returns the current error output of the process (STDERR).