diff --git a/modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/DefaultGenerator.java b/modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/DefaultGenerator.java
index 5d2f55ac047..5fc6a92bba7 100644
--- a/modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/DefaultGenerator.java
+++ b/modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/DefaultGenerator.java
@@ -221,6 +221,7 @@ public class DefaultGenerator extends AbstractGenerator implements Generator {
       bundle.put("models", allModels);
       bundle.put("apiFolder", config.apiPackage().replace('.', File.separatorChar));
       bundle.put("modelPackage", config.modelPackage());
+      bundle.put("authMethods", config.fromSecurity(swagger.getSecurityDefinitions()));
       if (swagger.getExternalDocs() != null) {
         bundle.put("externalDocs", swagger.getExternalDocs());
       }
diff --git a/modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/languages/PhpClientCodegen.java b/modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/languages/PhpClientCodegen.java
index 48d4a86b09d..55d358154f8 100644
--- a/modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/languages/PhpClientCodegen.java
+++ b/modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/languages/PhpClientCodegen.java
@@ -84,6 +84,7 @@ public class PhpClientCodegen extends DefaultCodegen implements CodegenConfig {
     typeMapping.put("list", "array");
 
     supportingFiles.add(new SupportingFile("composer.mustache", packagePath, "composer.json"));
+    supportingFiles.add(new SupportingFile("configuration.mustache", packagePath + "/lib", "Configuration.php"));
     supportingFiles.add(new SupportingFile("APIClient.mustache", packagePath + "/lib", "APIClient.php"));
     supportingFiles.add(new SupportingFile("APIClientException.mustache", packagePath + "/lib", "APIClientException.php"));
     supportingFiles.add(new SupportingFile("require.mustache", packagePath, invokerPackage + ".php"));
diff --git a/modules/swagger-codegen/src/main/resources/php/APIClient.mustache b/modules/swagger-codegen/src/main/resources/php/APIClient.mustache
index cf3d1fb9372..b8b8eff4295 100644
--- a/modules/swagger-codegen/src/main/resources/php/APIClient.mustache
+++ b/modules/swagger-codegen/src/main/resources/php/APIClient.mustache
@@ -38,13 +38,14 @@ class APIClient {
   protected $user_agent = "PHP-Swagger";
 
   /**
-   * @param string $host the address of the API server
-   * @param string $headerName a header to pass on requests 
+   * @param string $host Base url of the API server (optional)
    */
-  function __construct($host, $headerName = null, $headerValue = null) {
-    $this->host = $host;
-    $this->headerName = $headerName;
-    $this->headerValue = $headerValue;
+  function __construct($host = null) {
+    if ($host == null) {
+      $this->host = '{{basePath}}';
+    } else {
+      $this->host = $host;
+    }
   }
 
   /**
@@ -100,6 +101,47 @@ class APIClient {
     $this->curl_timeout = $seconds;
   }
 
+  /**
+   * Get API key (with prefix if set)
+   * @param string key name
+   * @return string API key with the prefix
+   */
+  public function getApiKeyWithPrefix($apiKey) {
+    if (Configuration::$apiKeyPrefix[$apiKey]) {
+      return Configuration::$apiKeyPrefix[$apiKey]." ".Configuration::$apiKey[$apiKey];
+    } else {
+      return Configuration::$apiKey[$apiKey];
+    }
+  }
+
+  /**
+   * update hearder and query param based on authentication setting
+   * 
+   * @param array $headerParams header parameters (by ref)
+   * @param array $queryParams query parameters (by ref)
+   * @param array $authSettings array of authentication scheme (e.g ['api_key'])
+   */
+  public function updateParamsForAuth(&$headerParams, &$queryParams, $authSettings)
+  {
+    if (count($authSettings) == 0)
+      return;
+
+    // one endpoint can have more than 1 auth settings
+    foreach($authSettings as $auth) {
+      // determine which one to use
+      switch($auth) {
+        {{#authMethods}}
+        case '{{name}}':
+          {{#isApiKey}}{{#isKeyInHeader}}$headerParams['{{keyParamName}}'] = $this->getApiKeyWithPrefix('{{keyParamName}}');{{/isKeyInHeader}}{{#isKeyInQuery}}$queryParams['{{keyParamName}}'] = $this->getApiKeyWithPrefix('{{keyParamName}}');{{/isKeyInQuery}}{{/isApiKey}}{{#isBasic}}$headerParams['Authorization'] = 'Basic '.base64_encode(Configuration::$username.":".Configuration::$password);{{/isBasic}}
+          {{#isOAuth}}//TODO support oauth{{/isOAuth}}
+          break;
+        {{/authMethods}}
+        default:
+          //TODO show warning about security definition not found
+      }
+    }
+  }
+  
   /**
    * @param string $resourcePath path to method endpoint
    * @param string $method method to call
@@ -109,26 +151,22 @@ class APIClient {
    * @return mixed
    */
   public function callAPI($resourcePath, $method, $queryParams, $postData,
-    $headerParams) {
+    $headerParams, $authSettings) {
 
     $headers = array();
 
-    # Allow API key from $headerParams to override default
-    $added_api_key = False;
+    # determine authentication setting
+    $this->updateParamsForAuth($headerParams, $queryParams, $authSettings);
+
+    # construct the http header
     if ($headerParams != null) {
       # add default header
       $headerParams = array_merge((array)self::$default_header, $headerParams);
 
       foreach ($headerParams as $key => $val) {
         $headers[] = "$key: $val";
-        if ($key == $this->headerName) {
-          $added_api_key = True;
-        }
       }
     }
-    if (! $added_api_key && $this->headerName != null) {
-      $headers[] = $this->headerName . ": " . $this->headerValue;
-    }
 
     // form data
     if ($postData and in_array('Content-Type: application/x-www-form-urlencoded', $headers)) {
diff --git a/modules/swagger-codegen/src/main/resources/php/api.mustache b/modules/swagger-codegen/src/main/resources/php/api.mustache
index f0100defffe..98be8ff3a5c 100644
--- a/modules/swagger-codegen/src/main/resources/php/api.mustache
+++ b/modules/swagger-codegen/src/main/resources/php/api.mustache
@@ -91,18 +91,20 @@ class {{classname}} {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array({{#authMethods}}'{{name}}'{{#hasMore}}, {{/hasMore}}{{/authMethods}});
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       {{#returnType}}if(! $response) {
         return null;
       }
 
-  		$responseObject = $this->apiClient->deserialize($response,
-  		                                                '{{returnType}}');
-  		return $responseObject;{{/returnType}}
+      $responseObject = $this->apiClient->deserialize($response,'{{returnType}}');
+      return $responseObject;{{/returnType}}
   }
   {{/operation}}
 {{newline}}
diff --git a/modules/swagger-codegen/src/main/resources/php/configuration.mustache b/modules/swagger-codegen/src/main/resources/php/configuration.mustache
new file mode 100644
index 00000000000..9af553702ae
--- /dev/null
+++ b/modules/swagger-codegen/src/main/resources/php/configuration.mustache
@@ -0,0 +1,36 @@
+<?php
+/**
+ *  Copyright 2015 Reverb Technologies, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+namespace {{invokerPackage}};
+
+class Configuration {
+
+  public static $PATCH = "PATCH";
+  public static $POST = "POST";
+  public static $GET = "GET";
+  public static $PUT = "PUT";
+  public static $DELETE = "DELETE";
+
+  // authentication setting
+  public static $apiKey = array();
+  public static $apiKeyPrefix = array();
+  public static $username = '';
+  public static $password = '';
+
+
+}
+
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/APIClient.php b/samples/client/petstore/php/SwaggerClient-php/lib/APIClient.php
index ace6bd78a11..85087520c8f 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/APIClient.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/APIClient.php
@@ -38,13 +38,14 @@ class APIClient {
   protected $user_agent = "PHP-Swagger";
 
   /**
-   * @param string $host the address of the API server
-   * @param string $headerName a header to pass on requests 
+   * @param string $host Base url of the API server (optional)
    */
-  function __construct($host, $headerName = null, $headerValue = null) {
-    $this->host = $host;
-    $this->headerName = $headerName;
-    $this->headerValue = $headerValue;
+  function __construct($host = null) {
+    if ($host == null) {
+      $this->host = 'http://petstore.swagger.io/v2';
+    } else {
+      $this->host = $host;
+    }
   }
 
   /**
@@ -100,6 +101,52 @@ class APIClient {
     $this->curl_timeout = $seconds;
   }
 
+  /**
+   * Get API key (with prefix if set)
+   * @param string key name
+   * @return string API key with the prefix
+   */
+  public function getApiKeyWithPrefix($apiKey) {
+    if (Configuration::$apiKeyPrefix[$apiKey]) {
+      return Configuration::$apiKeyPrefix[$apiKey]." ".Configuration::$apiKey[$apiKey];
+    } else {
+      return Configuration::$apiKey[$apiKey];
+    }
+  }
+
+  /**
+   * update hearder and query param based on authentication setting
+   * 
+   * @param array $headerParams header parameters (by ref)
+   * @param array $queryParams query parameters (by ref)
+   * @param array $authSettings array of authentication scheme (e.g ['api_key'])
+   */
+  public function updateParamsForAuth(&$headerParams, &$queryParams, $authSettings)
+  {
+    if (count($authSettings) == 0)
+      return;
+
+    // one endpoint can have more than 1 auth settings
+    foreach($authSettings as $auth) {
+      // determine which one to use
+      switch($auth) {
+        
+        case 'api_key':
+          $headerParams['api_key'] = $this->getApiKeyWithPrefix('api_key');
+          
+          break;
+        
+        case 'petstore_auth':
+          
+          //TODO support oauth
+          break;
+        
+        default:
+          //TODO show warning about security definition not found
+      }
+    }
+  }
+  
   /**
    * @param string $resourcePath path to method endpoint
    * @param string $method method to call
@@ -109,26 +156,22 @@ class APIClient {
    * @return mixed
    */
   public function callAPI($resourcePath, $method, $queryParams, $postData,
-    $headerParams) {
+    $headerParams, $authSettings) {
 
     $headers = array();
 
-    # Allow API key from $headerParams to override default
-    $added_api_key = False;
+    # determine authentication setting
+    $this->updateParamsForAuth($headerParams, $queryParams, $authSettings);
+
+    # construct the http header
     if ($headerParams != null) {
       # add default header
       $headerParams = array_merge((array)self::$default_header, $headerParams);
 
       foreach ($headerParams as $key => $val) {
         $headers[] = "$key: $val";
-        if ($key == $this->headerName) {
-          $added_api_key = True;
-        }
       }
     }
-    if (! $added_api_key && $this->headerName != null) {
-      $headers[] = $this->headerName . ": " . $this->headerValue;
-    }
 
     // form data
     if ($postData and in_array('Content-Type: application/x-www-form-urlencoded', $headers)) {
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Configuration.php b/samples/client/petstore/php/SwaggerClient-php/lib/Configuration.php
new file mode 100644
index 00000000000..9426efa9170
--- /dev/null
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Configuration.php
@@ -0,0 +1,36 @@
+<?php
+/**
+ *  Copyright 2015 Reverb Technologies, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+namespace SwaggerClient;
+
+class Configuration {
+
+  public static $PATCH = "PATCH";
+  public static $POST = "POST";
+  public static $GET = "GET";
+  public static $PUT = "PUT";
+  public static $DELETE = "DELETE";
+
+  // authentication setting
+  public static $apiKey = array();
+  public static $apiKeyPrefix = array();
+  public static $username = '';
+  public static $password = '';
+
+
+}
+
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/PetApi.php b/samples/client/petstore/php/SwaggerClient-php/lib/PetApi.php
index 585a756f852..eece13acff7 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/PetApi.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/PetApi.php
@@ -72,10 +72,13 @@ class PetApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array('petstore_auth');
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       
   }
@@ -123,10 +126,13 @@ class PetApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array('petstore_auth');
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       
   }
@@ -173,18 +179,20 @@ class PetApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array('petstore_auth');
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       if(! $response) {
         return null;
       }
 
-  		$responseObject = $this->apiClient->deserialize($response,
-  		                                                'array[Pet]');
-  		return $responseObject;
+      $responseObject = $this->apiClient->deserialize($response,'array[Pet]');
+      return $responseObject;
   }
   
   /**
@@ -229,18 +237,20 @@ class PetApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array('petstore_auth');
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       if(! $response) {
         return null;
       }
 
-  		$responseObject = $this->apiClient->deserialize($response,
-  		                                                'array[Pet]');
-  		return $responseObject;
+      $responseObject = $this->apiClient->deserialize($response,'array[Pet]');
+      return $responseObject;
   }
   
   /**
@@ -291,18 +301,20 @@ class PetApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array('api_key', 'petstore_auth');
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       if(! $response) {
         return null;
       }
 
-  		$responseObject = $this->apiClient->deserialize($response,
-  		                                                'Pet');
-  		return $responseObject;
+      $responseObject = $this->apiClient->deserialize($response,'Pet');
+      return $responseObject;
   }
   
   /**
@@ -361,10 +373,13 @@ class PetApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array('petstore_auth');
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       
   }
@@ -421,10 +436,13 @@ class PetApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array('petstore_auth');
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       
   }
@@ -485,10 +503,13 @@ class PetApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array('petstore_auth');
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       
   }
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/StoreApi.php b/samples/client/petstore/php/SwaggerClient-php/lib/StoreApi.php
index ab43d730f6a..609e6568ed4 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/StoreApi.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/StoreApi.php
@@ -67,18 +67,20 @@ class StoreApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array('api_key');
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       if(! $response) {
         return null;
       }
 
-  		$responseObject = $this->apiClient->deserialize($response,
-  		                                                'map[string,int]');
-  		return $responseObject;
+      $responseObject = $this->apiClient->deserialize($response,'map[string,int]');
+      return $responseObject;
   }
   
   /**
@@ -124,18 +126,20 @@ class StoreApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array();
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       if(! $response) {
         return null;
       }
 
-  		$responseObject = $this->apiClient->deserialize($response,
-  		                                                'Order');
-  		return $responseObject;
+      $responseObject = $this->apiClient->deserialize($response,'Order');
+      return $responseObject;
   }
   
   /**
@@ -186,18 +190,20 @@ class StoreApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array();
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       if(! $response) {
         return null;
       }
 
-  		$responseObject = $this->apiClient->deserialize($response,
-  		                                                'Order');
-  		return $responseObject;
+      $responseObject = $this->apiClient->deserialize($response,'Order');
+      return $responseObject;
   }
   
   /**
@@ -248,10 +254,13 @@ class StoreApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array();
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       
   }
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/UserApi.php b/samples/client/petstore/php/SwaggerClient-php/lib/UserApi.php
index 90e35bca4ad..985ed22a40c 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/UserApi.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/UserApi.php
@@ -72,10 +72,13 @@ class UserApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array();
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       
   }
@@ -123,10 +126,13 @@ class UserApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array();
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       
   }
@@ -174,10 +180,13 @@ class UserApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array();
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       
   }
@@ -228,18 +237,20 @@ class UserApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array();
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       if(! $response) {
         return null;
       }
 
-  		$responseObject = $this->apiClient->deserialize($response,
-  		                                                'string');
-  		return $responseObject;
+      $responseObject = $this->apiClient->deserialize($response,'string');
+      return $responseObject;
   }
   
   /**
@@ -280,10 +291,13 @@ class UserApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array();
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       
   }
@@ -336,18 +350,20 @@ class UserApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array();
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       if(! $response) {
         return null;
       }
 
-  		$responseObject = $this->apiClient->deserialize($response,
-  		                                                'User');
-  		return $responseObject;
+      $responseObject = $this->apiClient->deserialize($response,'User');
+      return $responseObject;
   }
   
   /**
@@ -403,10 +419,13 @@ class UserApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array();
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       
   }
@@ -459,10 +478,13 @@ class UserApi {
         $httpBody = $formParams;
       }
 
+      // authentication setting, if any
+      $authSettings = array();
+
       // make the API Call
       $response = $this->apiClient->callAPI($resourcePath, $method,
                                             $queryParams, $httpBody,
-                                            $headerParams);
+                                            $headerParams, $authSettings);
 
       
   }
diff --git a/samples/client/petstore/php/SwaggerClient-php/tests/PetApiTest.php b/samples/client/petstore/php/SwaggerClient-php/tests/PetApiTest.php
index 4751c29dd78..bf941756fa6 100644
--- a/samples/client/petstore/php/SwaggerClient-php/tests/PetApiTest.php
+++ b/samples/client/petstore/php/SwaggerClient-php/tests/PetApiTest.php
@@ -53,13 +53,15 @@ class PetApiTest extends \PHPUnit_Framework_TestCase
     # test deleteDefaultHeader
     SwaggerClient\APIClient::deleteDefaultHeader('test2');
     $this->assertFalse(isset(SwaggerClient\APIClient::getDefaultHeader()['test2']));
+
   }
 
   // test getPetById with a Pet object (id 10005)
   public function testGetPetById()
   {
-    // initialize the API client
-    $api_client = new SwaggerClient\APIClient('http://petstore.swagger.io/v2');
+    // initialize the API client without host
+    $api_client = new SwaggerClient\APIClient();
+    SwaggerClient\Configuration::$apiKey['api_key'] = '111222333444555';
     $pet_id = 10005;  // ID of pet that needs to be fetched
     $pet_api = new SwaggerClient\PetAPI($api_client);
     // return Pet (model)