array readAndCloseHandles(Boolean $blocking) Reads data in file handles and pipes, closes them

Process enableOutput()

bool getEnhanceWindowsCompatibility() Gets whether or not Windows compatibility is enabled.

string getCommandLine() Gets the command line to be executed.

onEmpty(callable $onEmpty = null) Sets a callback that is called when the write buffer becomes empty

class InputStream implements IteratorAggregate

Process getProcess()

resource|string|Iterator|null getInput()

ProcessBuilder setInput(resource|scalar|

Process mustRun(callable $callback = null)