empty_loop         0.014
func()             0.104    0.091
undef_func()       0.106    0.092
int_func()         0.043    0.029
$x = self::$x      0.060    0.046
self::$x = 0       0.048    0.034
isset(self::$x)    0.061    0.048
empty(self::$x)    0.061    0.048
$x = Foo::$x       0.039    0.025
Foo::$x = 0        0.023    0.009
isset(Foo::$x)     0.038    0.024
empty(Foo::$x)     0.040    0.026
self::f()          0.120    0.106
Foo::f()           0.104    0.090
$x = $this->x      0.029    0.016
$this->x = 0       0.024    0.010
$this->x += 2      0.039    0.025
++$this->x         0.036    0.022
--$this->x         0.036    0.022
$this->x++         0.049    0.036
$this->x--         0.048    0.034
isset($this->x)    0.045    0.032
empty($this->x)    0.054    0.041
$this->f()         0.094    0.080
$x = Foo::TEST     0.053    0.040
new Foo()          0.115    0.101
$x = TEST          0.028    0.014
$x = $_GET         0.046    0.032
$x = $GLOBALS['v'] 0.090    0.077
$x = $hash['v']    0.058    0.044
$x = $str[0]       0.052    0.038
$x = $a ?: null    0.039    0.025
$x = $f ?: tmp     0.045    0.032
$x = $f ? $f : $a  0.033    0.020
$x = $f ? $f : tmp 0.037    0.024
------------------------
Total              1.916