empty_loop         0.013
func()             0.091    0.078
undef_func()       0.097    0.083
int_func()         0.022    0.009
$x = self::$x      0.071    0.057
self::$x = 0       0.063    0.050
isset(self::$x)    0.067    0.054
empty(self::$x)    0.069    0.055
$x = Foo::$x       0.041    0.028
Foo::$x = 0        0.031    0.018
isset(Foo::$x)     0.040    0.026
empty(Foo::$x)     0.038    0.024
self::f()          0.126    0.112
Foo::f()           0.102    0.088
$x = $this->x      0.029    0.016
$this->x = 0       0.029    0.016
$this->x += 2      0.054    0.041
++$this->x         0.043    0.029
--$this->x         0.043    0.030
$this->x++         0.043    0.029
$this->x--         0.043    0.030
isset($this->x)    0.045    0.032
empty($this->x)    0.053    0.040
$this->f()         0.097    0.084
$x = Foo::TEST     0.044    0.031
new Foo()          0.141    0.128
$x = TEST          0.025    0.011
$x = $_GET         0.052    0.039
$x = $GLOBALS['v'] 0.062    0.049
$x = $hash['v']    0.053    0.040
$x = $str[0]       0.042    0.029
$x = $a ?: null    0.038    0.025
$x = $f ?: tmp     0.040    0.027
$x = $f ? $f : $a  0.036    0.022
$x = $f ? $f : tmp 0.036    0.023
------------------------
Total              1.920