<?php

if($x) {}
else{}
for(;;) {}
foreach($x as $y) {}
while($x) {}
do{} while($x);
switch($x) {}
if ($x) {}
else if ($y) {}
else if ($z) {}

if  ($x) {}
if

($x) {}
if ($x) {
  echo 100;
} else {
  echo 10;
}
do {
  echo 1;
} while(true);

try {} catch(Exception $ex) {}
~~~~~~~~~~
warning:3:1
warning:4:1
warning:5:1
warning:6:1
warning:7:1
warning:8:1
warning:8:6
warning:9:1
warning:14:3
warning:15:3
warning:25:3
warning:27:8
~~~~~~~~~~
<?php

if ($x) {}
else {}
for (;;) {}
foreach ($x as $y) {}
while ($x) {}
do {} while ($x);
switch ($x) {}
if ($x) {}
else if ($y) {}
else if ($z) {}

if ($x) {}
if ($x) {}
if ($x) {
  echo 100;
} else {
  echo 10;
}
do {
  echo 1;
} while (true);

try {} catch (Exception $ex) {}