feat: add Go, PHP, Laravel examples to examples page and update landing copy

public/examples.html

@@ -4,7 +4,7 @@
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>Code Examples — DocFast HTML to PDF API</title>
-<meta name="description" content="Practical html to pdf api examples — generate pdf from html code, invoice pdf api, markdown to pdf, Node.js and Python integrations.">
+<meta name="description" content="Practical html to pdf api examples — generate pdf from html code, invoice pdf api, markdown to pdf, Node.js, Python, Go, PHP and Laravel integrations.">
 <meta property="og:title" content="Code Examples — DocFast HTML to PDF API">
 <meta property="og:description" content="Practical code examples for generating PDFs from HTML, Markdown, and more with the DocFast API.">
 <meta property="og:url" content="https://docfast.dev/examples">
@@ -113,6 +113,8 @@ footer .container { display: flex; justify-content: space-between; align-items:
       <a href="#receipt">Receipt</a>
       <a href="#nodejs">Node.js</a>
       <a href="#python">Python</a>
+      <a href="#go">Go</a>
+      <a href="#php">PHP</a>
     </nav>
 
     <!-- Invoice -->
@@ -348,6 +350,63 @@ pdf = response.content</code></pre>
       </div>
     </section>
 
+    <!-- Go -->
+    <section id="go" class="example-section">
+      <h2>Go Integration</h2>
+      <p>Install the official SDK: <code>go get github.com/docfast/docfast-go</code></p>
+      <div class="code-block">
+        <span class="code-label">Go — Using the SDK</span>
+        <pre><code><span class="kw">package</span> main
+
+<span class="kw">import</span> (
+    <span class="str">"os"</span>
+    docfast <span class="str">"github.com/docfast/docfast-go"</span>
+)
+
+<span class="kw">func</span> main() {
+    client := docfast.New(<span class="str">"df_pro_your_api_key"</span>)
+
+    pdf, err := client.HTML(<span class="str">"&lt;h1&gt;Hello&lt;/h1&gt;&lt;p&gt;Generated with DocFast&lt;/p&gt;"</span>, &amp;docfast.PDFOptions{
+        Format: <span class="str">"A4"</span>,
+        Margin: &amp;docfast.Margin{Top: <span class="str">"20mm"</span>, Bottom: <span class="str">"20mm"</span>},
+    })
+    <span class="kw">if</span> err != <span class="kw">nil</span> {
+        panic(err)
+    }
+    os.WriteFile(<span class="str">"output.pdf"</span>, pdf, <span class="num">0644</span>)
+}</code></pre>
+      </div>
+    </section>
+
+    <!-- PHP -->
+    <section id="php" class="example-section">
+      <h2>PHP Integration</h2>
+      <p>Install the official SDK: <code>composer require docfast/docfast-php</code></p>
+      <div class="code-block">
+        <span class="code-label">PHP — Using the SDK</span>
+        <pre><code><span class="kw">use</span> DocFast\Client;
+<span class="kw">use</span> DocFast\PdfOptions;
+
+$client = <span class="kw">new</span> Client(<span class="str">'df_pro_your_api_key'</span>);
+
+$options = <span class="kw">new</span> PdfOptions();
+$options-&gt;format = <span class="str">'A4'</span>;
+$options-&gt;margin = [<span class="str">'top'</span> =&gt; <span class="str">'20mm'</span>, <span class="str">'bottom'</span> =&gt; <span class="str">'20mm'</span>];
+
+$pdf = $client-&gt;html(<span class="str">'&lt;h1&gt;Hello&lt;/h1&gt;&lt;p&gt;Generated with DocFast&lt;/p&gt;'</span>, <span class="kw">null</span>, $options);
+file_put_contents(<span class="str">'output.pdf'</span>, $pdf);</code></pre>
+      </div>
+      <div class="code-block">
+        <span class="code-label">Laravel — Using the Facade</span>
+        <pre><code><span class="kw">use</span> DocFast\Laravel\Facades\DocFast;
+
+<span class="cmt">// In your controller</span>
+$pdf = DocFast::html(view(<span class="str">'invoice'</span>)-&gt;render());
+<span class="kw">return</span> response($pdf)
+    -&gt;header(<span class="str">'Content-Type'</span>, <span class="str">'application/pdf'</span>);</code></pre>
+      </div>
+    </section>
+
   </div>
 </main>