1Shell execution
2-----
3<?php
4``;
5`test`;
6`test $A`;
7`test \``;
8`test \"`;
9-----
10array(
11    0: Stmt_Expression(
12        expr: Expr_ShellExec(
13            parts: array(
14            )
15        )
16    )
17    1: Stmt_Expression(
18        expr: Expr_ShellExec(
19            parts: array(
20                0: InterpolatedStringPart(
21                    value: test
22                )
23            )
24        )
25    )
26    2: Stmt_Expression(
27        expr: Expr_ShellExec(
28            parts: array(
29                0: InterpolatedStringPart(
30                    value: test
31                )
32                1: Expr_Variable(
33                    name: A
34                )
35            )
36        )
37    )
38    3: Stmt_Expression(
39        expr: Expr_ShellExec(
40            parts: array(
41                0: InterpolatedStringPart(
42                    value: test `
43                )
44            )
45        )
46    )
47    4: Stmt_Expression(
48        expr: Expr_ShellExec(
49            parts: array(
50                0: InterpolatedStringPart(
51                    value: test \"
52                )
53            )
54        )
55    )
56)
57