empty_loop         0.016
func()             0.016    0.000
undef_func()       0.016    0.000
int_func()         0.016    0.000
$x = self::$x      0.094    0.078
self::$x = 0       0.086    0.069
isset(self::$x)    0.086    0.069
empty(self::$x)    0.088    0.071
$x = Foo::$x       0.048    0.031
Foo::$x = 0        0.044    0.027
isset(Foo::$x)     0.037    0.021
empty(Foo::$x)     0.040    0.023
self::f()          0.016    0.000
Foo::f()           0.016    0.000
$x = $this->x      0.039    0.022
$this->x = 0       0.042    0.026
$this->x += 2      0.063    0.047
++$this->x         0.054    0.038
--$this->x         0.059    0.042
$this->x++         0.054    0.038
$this->x--         0.060    0.043
isset($this->x)    0.059    0.042
empty($this->x)    0.064    0.048
$this->f()         0.124    0.108
$x = Foo::TEST     0.065    0.048
new Foo()          0.161    0.145
$x = TEST          0.032    0.015
$x = $_GET         0.067    0.051
$x = $GLOBALS['v'] 0.109    0.092
$x = $hash['v']    0.016    0.000
$x = $str[0]       0.016    0.000
$x = $a ?: null    0.016    0.000
$x = $f ?: tmp     0.016    0.000
$x = $f ? $f : $a  0.016    0.000
$x = $f ? $f : tmp 0.016    0.000
------------------------
Total              1.768