empty_loop         0.012
func()             0.103    0.091
undef_func()       0.101    0.088
int_func()         0.043    0.030
$x = self::$x      0.063    0.050
self::$x = 0       0.051    0.038
isset(self::$x)    0.064    0.051
empty(self::$x)    0.063    0.051
$x = Foo::$x       0.039    0.026
Foo::$x = 0        0.025    0.013
isset(Foo::$x)     0.039    0.027
empty(Foo::$x)     0.041    0.029
self::f()          0.119    0.106
Foo::f()           0.101    0.088
$x = $this->x      0.029    0.017
$this->x = 0       0.024    0.012
$this->x += 2      0.040    0.028
++$this->x         0.036    0.024
--$this->x         0.037    0.024
$this->x++         0.049    0.037
$this->x--         0.049    0.036
isset($this->x)    0.048    0.036
empty($this->x)    0.054    0.041
$this->f()         0.101    0.089
$x = Foo::TEST     0.053    0.041
new Foo()          0.134    0.122
$x = TEST          0.027    0.015
$x = $_GET         0.045    0.033
$x = $GLOBALS['v'] 0.079    0.067
$x = $hash['v']    0.057    0.045
$x = $str[0]       0.053    0.041
$x = $a ?: null    0.042    0.029
$x = $f ?: tmp     0.048    0.036
$x = $f ? $f : $a  0.034    0.022
$x = $f ? $f : tmp 0.035    0.023
------------------------
Total              1.939