From 36c1d90bdd1bdaf282d1497748f8909600cf6db1 Mon Sep 17 00:00:00 2001
From: z3r0yu <z3r0yu@zeros.local>
Date: Sat, 2 Dec 2023 20:20:12 +0800
Subject: [PATCH 1/3] Add Dockerfile for php-cfg

---
 Dockerfile | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 Dockerfile

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..a136be1
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,22 @@
+FROM php:7.4-cli
+
+RUN apt-get update && apt-get install -y \
+    git \
+    curl \
+    libzip-dev \
+    unzip \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN docker-php-ext-install zip
+
+RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
+
+WORKDIR /usr/src/php-cfg
+
+RUN git clone https://github.com/ircmaxell/php-cfg.git .
+
+RUN chmod -R 777 /usr/src/php-cfg
+
+RUN composer install
+
+CMD ["/bin/bash"]
\ No newline at end of file

From 205d97d4c35c78e8ab00b3240c7fae8b4e1c40f2 Mon Sep 17 00:00:00 2001
From: z3r0yu <z3r0yu@zeros.local>
Date: Sat, 2 Dec 2023 20:20:40 +0800
Subject: [PATCH 2/3] Upadte Readme for docker usage

---
 README.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/README.md b/README.md
index 3d6ba04..012f3c2 100644
--- a/README.md
+++ b/README.md
@@ -28,3 +28,12 @@ To dump the graph, simply use the built-in dumper:
 $dumper = new PHPCfg\Printer\Text();
 echo $dumper->printScript($script);
 ```
+
+Or you can use php-cfg by building the docker
+```bash
+# Building an image
+docker build -t php-cfg .
+
+# Build the container using the image and go directly to bash to use the
+docker run -it php-cfg
+```

From 586b99af365a13f58ed09a655562963d1545029b Mon Sep 17 00:00:00 2001
From: z3r0yu <z3r0yu@zeros.local>
Date: Sat, 2 Dec 2023 20:27:59 +0800
Subject: [PATCH 3/3] Upadte a usage example for getSingleFileGraph.php

---
 getSingleFileGraph.php | 65 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 getSingleFileGraph.php

diff --git a/getSingleFileGraph.php b/getSingleFileGraph.php
new file mode 100644
index 0000000..0203d7c
--- /dev/null
+++ b/getSingleFileGraph.php
@@ -0,0 +1,65 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * This file is part of PHP-CFG, a Control flow graph implementation for PHP
+ *
+ * @copyright 2015 Anthony Ferrara. All rights reserved
+ * @license MIT See LICENSE at the root of the project for more info
+ */
+
+// Usage:
+// maybe you should install graphviz first
+// php getSingleFileGraph.php demo.php > demo.dot
+// dot -Tpng demo.dot > demo.png
+
+use PhpParser\ParserFactory;
+
+require __DIR__.'/vendor/autoload.php';
+
+$graphviz = false;
+list($fileName, $code) = getCode($argc, $argv);
+
+$parser = new PHPCfg\Parser((new ParserFactory())->create(ParserFactory::PREFER_PHP7));
+
+$declarations = new PHPCfg\Visitor\DeclarationFinder();
+$calls = new PHPCfg\Visitor\CallFinder();
+$variables = new PHPCfg\Visitor\VariableFinder();
+
+$traverser = new PHPCfg\Traverser();
+
+$traverser->addVisitor($declarations);
+$traverser->addVisitor($calls);
+$traverser->addVisitor(new PHPCfg\Visitor\Simplifier());
+$traverser->addVisitor($variables);
+
+$script = $parser->parse($code, __FILE__);
+$traverser->traverse($script);
+
+if ($graphviz) {
+    $dumper = new PHPCfg\Printer\GraphViz();
+    echo $dumper->printScript($script);
+} else {
+    $dumper = new PHPCfg\Printer\Text();
+    echo $dumper->printScript($script);
+}
+
+function getCode($argc, $argv)
+{
+    if ($argc >= 2) {
+        if (strpos($argv[1], '<?php') === 0) {
+            return ['command line code', $argv[1]];
+        }
+
+        return [$argv[1], file_get_contents($argv[1])];
+    }
+
+    return [__FILE__, <<<'EOF'
+<?php
+function foo(array $a) {
+    $a[] = 1;
+}
+EOF
+    ];
+}