Nomad changes

docs/snippets/php/advanced/chunking_rag.md

@@ -0,0 +1,39 @@
+```php title="PHP"
+<?php
+declare(strict_types=1);
+
+use Kreuzberg\Kreuzberg;
+use Kreuzberg\ExtractionConfig;
+use Kreuzberg\ChunkingConfig;
+use Kreuzberg\EmbeddingConfig;
+
+$config = new ExtractionConfig(
+    chunking: new ChunkingConfig(
+        maxCharacters: 500,
+        overlap: 50,
+        embedding: new EmbeddingConfig(
+            normalize: true,
+            batchSize: 32
+        )
+    )
+);
+
+$result = Kreuzberg::extractFileSync('research_paper.pdf', null, $config);
+
+if ($result->getChunks()) {
+    foreach ($result->getChunks() as $chunk) {
+        $metadata = $chunk->getMetadata();
+        if ($metadata) {
+            echo "Chunk " . ($metadata->getChunkIndex() + 1) . "/" . $metadata->getTotalChunks() . "\n";
+            echo "Position: " . $metadata->getByteStart() . "-" . $metadata->getByteEnd() . "\n";
+            echo "Content: " . substr($chunk->getContent(), 0, 100) . "...\n";
+
+            if ($chunk->getEmbedding()) {
+                echo "Embedding: " . count($chunk->getEmbedding()) . " dimensions\n";
+            }
+        }
+        echo "\n";
+    }
+}
+?>
+```