19     private $executable;  variable in Facebook\\WebDriver\\Remote\\Service\\DriverService
42      * @param string $executable
47     public function __construct($executable, $port, $args = [], $environment = null)  argument
49         $this->setExecutable($executable);
116      * @param string $executable
119     protected static function checkExecutable($executable)  argument
121         return $executable;
125      * @param string $executable
128     protected function setExecutable($executable)  argument
130         if ($this->isExecutable($executable)) {
131             $this->executable = $executable;
140                 $executable
173                 ->setPrefix($this->executable)
180         $commandLine = array_merge([$this->executable], $this->args);