Add Docker support with documentation

Dockerfile

@@ -0,0 +1,15 @@
+FROM php:8.2-cli
+
+# Install dependencies
+RUN apt-get update && apt-get install -y \
+    git \
+    unzip \
+    libzip-dev \
+    && docker-php-ext-install zip
+
+WORKDIR /scanner
+COPY . .
+RUN chmod +x scan
+
+ENTRYPOINT ["./scan"]
+CMD ["/code"] 

README.md

@@ -146,3 +146,37 @@ Licensing
 ---------
 
 PHP malware scanner is [licensed](https://github.com/scr34m/php-malware-scanner/blob/master/LICENSE.txt) under the GNU General Public License v3.
+
+Docker Usage
+-----------
+
+You can also run the scanner using Docker:
+
+1. Build the image:
+```bash
+docker build -t php-malware-scanner .
+```
+
+2. Scan a directory:
+```bash
+docker run -v /path/to/scan:/code php-malware-scanner -d /code
+```
+
+For example, to scan a WordPress installation:
+```bash
+docker run -v /var/www/html:/code php-malware-scanner -d /code -j 6.4.1
+```
+
+Common usage with flags:
+```bash
+# Show only infected files (hide OK status)
+docker run -v /path/to/scan:/code php-malware-scanner -d /code -k
+
+# Show comments for matched patterns
+docker run -v /path/to/scan:/code php-malware-scanner -d /code -c
+
+# Show MD5 hashes and continue after first match
+docker run -v /path/to/scan:/code php-malware-scanner -d /code -m -s
+```
+
+The `/code` directory inside the container is where your files will be mounted for scanning.