empty_loop         0.014
func()             0.086    0.073
undef_func()       0.096    0.083
int_func()         0.021    0.007
$x = self::$x      0.070    0.057
self::$x = 0       0.064    0.050
isset(self::$x)    0.065    0.051
empty(self::$x)    0.068    0.054
$x = Foo::$x       0.038    0.024
Foo::$x = 0        0.034    0.021
isset(Foo::$x)     0.034    0.021
empty(Foo::$x)     0.041    0.028
self::f()          0.120    0.106
Foo::f()           0.103    0.090
$x = $this->x      0.028    0.015
$this->x = 0       0.031    0.018
$this->x += 2      0.049    0.036
++$this->x         0.041    0.028
--$this->x         0.045    0.032
$this->x++         0.042    0.028
$this->x--         0.044    0.030
isset($this->x)    0.048    0.034
empty($this->x)    0.049    0.036
$this->f()         0.099    0.086
$x = Foo::TEST     0.045    0.031
new Foo()          0.143    0.130
$x = TEST          0.025    0.011
$x = $_GET         0.050    0.036
$x = $GLOBALS['v'] 0.061    0.047
$x = $hash['v']    0.053    0.039
$x = $str[0]       0.042    0.028
$x = $a ?: null    0.041    0.028
$x = $f ?: tmp     0.042    0.029
$x = $f ? $f : $a  0.036    0.022
$x = $f ? $f : tmp 0.037    0.024
------------------------
Total              1.905