在laravel 5.1中并行运行功能？

Question

I got an issue on laravel 5.1 in performance,

public static function test($keyword)
{

//fun1

$x = $bh -> getASearch($keyword);

$output['A'] = $bh -> gNOR($a, $nor);

//fun2

$y = $bh -> getBSearch($keyword);

$output['B'] = $bh -> gNOR($b, $nor);

//fun3

$z = $bh -> getCSearch($keyword);

$output['C'] = $bh -> gNOR($c, $nor);

}

//I wanna run these codes for fun1, fun2 and fun3 in parallel over all to reduce the load time,

I like KISS principle, but be clear with referenced links is awarded