1Block statements
2-----
3<?php
4echo "a";
5{
6}
7{
8    echo "b";
9}
10if ($c) {
11    echo "c";
12    {
13        echo "d";
14    }
15}
16-----
17echo "a";
18{
19}
20{
21    echo "b";
22}
23if ($c) {
24    echo "c";
25    {
26        echo "d";
27    }
28}
29