Updated setType to use Type:PLAIN_TEXT and revert parameter

1. $document->setContent($text)->setType(1) to
$document->setContent($text)->setType(Type::PLAIN_TEXT)

2. classify_text_from_file($matches[0], $projectId) to classify_text_from_file($content, $projectId);

Author: gogasca

language/language.php

@@ -290,7 +290,7 @@
         // Regex to match a Cloud Storage path as the first argument
         // e.g "gs://my-bucket/file_with_text.txt"
         if (preg_match('/^gs:\/\/([a-z0-9\._\-]+)\/(\S+)$/', $content, $matches)) {
-            classify_text_from_file($matches[0], $projectId);
+            classify_text_from_file($content, $projectId);
         } else {
             classify_text($content, $projectId);
         }

language/src/classify_text.php

@@ -25,6 +25,7 @@
 namespace Google\Cloud\Samples\Language;
 
 use Google\Cloud\Language\V1beta2\Document;
+use Google\Cloud\Language\V1beta2\Document\Type;
 use Google\Cloud\Language\V1beta2\LanguageServiceClient;
 /**
  * Classify text (20+ words) into categories.
@@ -51,16 +52,16 @@ function classify_text($text, $projectId = null)
     try {
         // Create a new Document
         $document = new Document();
-        // Pass GCS URI and set document type to PLAIN_TEXT
-        $document->setContent($text)->setType(1);
+        // Pass GCS URI and set document type to PLAIN_TEXT (1)
+        $document->setContent($text)->setType(Type::PLAIN_TEXT);
         // Call the analyzeSentiment function
         $response = $languageServiceClient->classifyText($document);
         $categories = $response->getCategories();
         // Print document information
         foreach ($categories as $category) {
             printf('Category Name: %s' . PHP_EOL, $category->getName());
             printf('Confidence: %s' . PHP_EOL, $category->getConfidence());
-            printf(PHP_EOL);
+            print(PHP_EOL);
         }
     } finally {
         $languageServiceClient->close();

language/src/classify_text_from_file.php

@@ -25,6 +25,7 @@
 namespace Google\Cloud\Samples\Language;
 
 use Google\Cloud\Language\V1beta2\Document;
+use Google\Cloud\Language\V1beta2\Document\Type;
 use Google\Cloud\Language\V1beta2\LanguageServiceClient;
 
 /**
@@ -44,15 +45,15 @@ function classify_text_from_file($gcsUri, $projectId = null)
         // Create a new Document
         $document = new Document();
         // Pass GCS URI and set document type to PLAIN_TEXT
-        $document->setGcsContentUri($gcsUri)->setType(1);
+        $document->setGcsContentUri($gcsUri)->setType(Type::PLAIN_TEXT);
         // Call the analyzeSentiment function
         $response = $languageServiceClient->classifyText($document);
         $categories = $response->getCategories();
         // Print document information
         foreach ($categories as $category) {
             printf('Category Name: %s' . PHP_EOL, $category->getName());
             printf('Confidence: %s' . PHP_EOL, $category->getConfidence());
-            printf(PHP_EOL);
+            print(PHP_EOL);
         }
     } finally {
         $languageServiceClient->close();