Allow support for curl_reset()

Author: Reza Sanaie

composer.json

@@ -15,6 +15,7 @@
     "require": {
         "php": ">=5.3",
         "ext-curl": "*",
+        "ext-gd": "*",
         "ext-mbstring": "*"
     },
     "require-dev": {

src/Curl/Curl.php

@@ -112,21 +112,7 @@ public function __construct($base_url = null)
         }
 
         $this->curl = curl_init();
-        $this->id = uniqid('', true);
-        $this->setDefaultUserAgent();
-        $this->setDefaultTimeout();
-        $this->setOpt(CURLINFO_HEADER_OUT, true);
-
-        // Create a placeholder to temporarily store the header callback data.
-        $header_callback_data = new \stdClass();
-        $header_callback_data->rawResponseHeaders = '';
-        $header_callback_data->responseCookies = array();
-        $this->headerCallbackData = $header_callback_data;
-        $this->setOpt(CURLOPT_HEADERFUNCTION, createHeaderCallback($header_callback_data));
-
-        $this->setOpt(CURLOPT_RETURNTRANSFER, true);
-        $this->headers = new CaseInsensitiveArray();
-        $this->setUrl($base_url);
+        $this->initialize($base_url);
     }
 
     /**
@@ -1206,6 +1192,22 @@ public function verbose($on = true, $output = STDERR)
         $this->setOpt(CURLOPT_STDERR, $output);
     }
 
+    /**
+     * Reset
+     *
+     * @access public
+     */
+    public function reset()
+    {
+        if (function_exists('curl_reset') && is_resource($this->curl)) {
+            curl_reset($this->curl);
+        } else {
+            $this->curl = curl_init();
+        }
+
+        $this->initialize();
+    }
+
     /**
      * Destruct
      *
@@ -1485,6 +1487,32 @@ private function setEncodedCookie($key, $value)
 
         $this->cookies[implode('', $name_chars)] = implode('', $value_chars);
     }
+
+    /**
+     * Initialize
+     *
+     * @access private
+     * @param  $base_url
+     * @throws \ErrorException
+     */
+    private function initialize($base_url = null)
+    {
+        $this->id = uniqid('', true);
+        $this->setDefaultUserAgent();
+        $this->setDefaultTimeout();
+        $this->setOpt(CURLINFO_HEADER_OUT, true);
+
+        // Create a placeholder to temporarily store the header callback data.
+        $header_callback_data = new \stdClass();
+        $header_callback_data->rawResponseHeaders = '';
+        $header_callback_data->responseCookies = array();
+        $this->headerCallbackData = $header_callback_data;
+        $this->setOpt(CURLOPT_HEADERFUNCTION, createHeaderCallback($header_callback_data));
+
+        $this->setOpt(CURLOPT_RETURNTRANSFER, true);
+        $this->headers = new CaseInsensitiveArray();
+        $this->setUrl($base_url);
+    }
 }
 
 /**

tests/PHPCurlClass/PHPCurlClassTest.php

@@ -3639,4 +3639,22 @@ public function testRelativeUrl()
             );
         }
     }
+
+    public function testReset()
+    {
+        $php_version = preg_replace('/([\.\+\?\*\(\)\[\]\^\$\/])/', '\\\\\1', 'PHP/' . PHP_VERSION);
+
+        $test = new Test();
+
+        $user_agent = $test->server('server', 'GET', array('key' => 'HTTP_USER_AGENT'));
+        $this->assertRegExp('/' . $php_version . '/', $user_agent);
+
+        $test->curl->setUserAgent('New agent');
+        $user_agent = $test->server('server', 'GET', array('key' => 'HTTP_USER_AGENT'));
+        $this->assertEquals('New agent', $user_agent);
+
+        $test->curl->reset();
+        $user_agent = $test->server('server', 'GET', array('key' => 'HTTP_USER_AGENT'));
+        $this->assertRegExp('/' . $php_version . '/', $user_agent);
+    }
 }