empty_loop         0.049
func()             0.050    0.000
undef_func()       0.049    0.000
int_func()         0.046    -0.003
$x = self::$x      0.154    0.105
self::$x = 0       0.127    0.078
isset(self::$x)    0.142    0.093
empty(self::$x)    0.140    0.090
$x = Foo::$x       0.090    0.041
Foo::$x = 0        0.061    0.011
isset(Foo::$x)     0.070    0.020
empty(Foo::$x)     0.079    0.030
self::f()          0.029    -0.021
Foo::f()           0.028    -0.021
$x = $this->x      0.069    0.019
$this->x = 0       0.065    0.016
$this->x += 2      0.102    0.053
++$this->x         0.097    0.048
--$this->x         0.095    0.046
$this->x++         0.097    0.048
$this->x--         0.095    0.046
isset($this->x)    0.086    0.037
empty($this->x)    0.098    0.049
$this->f()         0.140    0.091
$x = Foo::TEST     0.117    0.067
new Foo()          0.312    0.263
$x = TEST          0.059    0.010
$x = $_GET         0.125    0.076
$x = $GLOBALS['v'] 0.107    0.058
$x = $hash['v']    0.028    -0.021
$x = $str[0]       0.028    -0.021
$x = $a ?: null    0.028    -0.021
$x = $f ?: tmp     0.028    -0.021
$x = $f ? $f : $a  0.028    -0.021
$x = $f ? $f : tmp 0.028    -0.021
------------------------
Total              2.950