int wait(callable $callback = null) Waits for the process to terminate. The callback receives

resource|string|Iterator|null getInput()

ProcessBuilder addEnvironmentVariables(array

bool haveReadSupport() Returns if pipes are able to read output.

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

class PhpExecutableFinder An executable finder specifically designed for the PHP executable.

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

string|false find(bool $includeArgs = true) Finds The PHP executable.

ProcessBuilder inheritEnvironmentVariables(bool

class InputStream implements IteratorAggregate