Merge pull request #608 from postmanlabs/fix-php-syntax-highlighing

Add `<?php` on top in non boilerplate mode to help editor with syntax highlighting.

Author: Ankit Saini

codegens/php-guzzle/lib/phpGuzzle.js

@@ -147,7 +147,7 @@ function getSnippetBoilerplate (includeBoilerplate) {
       'use GuzzleHttp\\Psr7\\Utils;\n' +
       'use GuzzleHttp\\Psr7\\Request;\n';
   }
-  return '';
+  return '<?php\n';
 }
 
 /**

codegens/php-guzzle/test/unit/phpGuzzle.test.js

@@ -305,7 +305,7 @@ describe('getSnippetBoilerplate method', function () {
   });
 
   it('should return empty string for include option in false', function () {
-    const expected = '',
+    const expected = '<?php\n',
       result = getSnippetBoilerplate(false);
     expect(result).to.equal(expected);
   });