Create a simple, human-readable AST dump using the `php-ast` extension and its `util.php` helper file. Requires PHP 7.

ast_demo.php

<?php
require 'path/to/php-ast/util.php';

$code = <<<'EOC'
<?php
$random = random_int(0,1);
if ($random === 1) {
	echo 'EINS';
} else {
	echo 'NICHT EINS';
}
EOC;

echo ast_dump(ast\parse_code($code, 30)), "\n";

// Output:
AST_STMT_LIST
    0: AST_ASSIGN
        var: AST_VAR
            name: "random"
        expr: AST_CALL
            expr: AST_NAME
                flags: NAME_NOT_FQ (1)
                name: "random_int"
            args: AST_ARG_LIST
                0: 0
                1: 1
    1: AST_IF
        0: AST_IF_ELEM
            cond: AST_BINARY_OP
                flags: BINARY_IS_IDENTICAL (15)
                left: AST_VAR
                    name: "random"
                right: 1
            stmts: AST_STMT_LIST
                0: AST_ECHO
                    expr: "EINS"
        1: AST_IF_ELEM
            cond: null
            stmts: AST_STMT_LIST
                0: AST_ECHO
                    expr: "NICHT EINS"