Yii 中使用CURL扩展

CURL　扩展类

<?php
/**
 * Curl增强类
 */
class Curl extends CApplicationComponent {

	protected $url;
	protected $ch;
	public $options = array();
	public $info = array();
	public $error_code = 0;
	public $error_string = '';
	protected $validOptions = array('timeout' => array('type' => 'integer'), 'login' => array('type' => 'array'), 'proxy' => array('type' => 'array'), 'proxylogin' => array('type' => 'array'), 'setOptions' => array('type' => 'array'));

	/**
	 * Initialize the extension
	 * check to see if CURL is enabled and the format used is a valid one
	 */
	public function init() {
		if (!function_exists('curl_init'))
			throw new CException(Yii::t('Curl', 'You must have CURL enabled in order to use this extension.'));
	}

	/**
	 * Setter
	 * @set the option
	 */
	protected function setOption($key, $value) {
		curl_setopt($this->ch, $key, $value);
	}

	/**
	 * Formats Url if http:// dont exist
	 * set http://
	 */
	public function setUrl($url) {
		if (!preg_match('!^\w+://! i', $url)) {
			$url = 'http://' . $url;
		}
		$this->url = $url;
	}

	/*
	 * Set Url Cookie
	 */

	public function setCookies($values) {
		if (!is_array($values))
			throw new CException(Yii::t('Curl', 'options must be an array'));
		else
			$params = $this->cleanPost($values);
		$this->setOption(CURLOPT_COOKIE, $params);
	}

	/*
	  @LOGIN REQUEST
	  sets login option
	  If is not setted , return false
	 */

	public function setHttpLogin($username = '', $password = '') {
		$this->setOption(CURLOPT_USERPWD, $username . ':' . $password);
	}

	/*
	  @PROXY SETINGS
	  sets proxy settings withouth username

	 */

	public function setProxy($url, $port = 80) {
		$this->setOption(CURLOPT_HTTPPROXYTUNNEL, TRUE);
		$this->setOption(CURLOPT_PROXY, $url . ':' . $port);
	}

	/*
	  @PROXY LOGIN SETINGS
	  sets proxy login settings calls onley if is proxy setted

	 */

	public function setProxyLogin($username = '', $password = '') {
		$this->setOption(CURLOPT_PROXYUSERPWD, $username . ':' . $password);
	}

	/*
	  @VALID OPTION CHECKER
	 */

	protected static function checkOptions($value, $validOptions) {
		if (!empty($validOptions)) {
			foreach ($value as $key => $val) {

				if (!array_key_exists($key, $validOptions)) {
					throw new CException(Yii::t('Curl', '{k} is not a valid option', array('{k}' => $key)));
				}
				$type = gettype($val);
				if ((!is_array($validOptions [$key] ['type']) && ($type != $validOptions [$key] ['type'])) || (is_array($validOptions [$key] ['type']) && !in_array($type, $validOptions [$key] ['type']))) {
					throw new CException(Yii::t('Curl', '{k} must be of type {t}', array('{k}' => $key, '{t}' => $validOptions [$key] ['type'])));
				}

				if (($type == 'array') && array_key_exists('elements', $validOptions [$key])) {
					self::checkOptions($val, $validOptions [$key] ['elements']);
				}
			}
		}
	}

	protected function defaults() {
		!isset($this->options ['timeout']) ? $this->setOption(CURLOPT_TIMEOUT, 30) : $this->setOption(CURLOPT_TIMEOUT, $this->options ['timeout']);
		isset($this->options ['setOptions'] [CURLOPT_HEADER]) ? $this->setOption(CURLOPT_HEADER, $this->options ['setOptions'] [CURLOPT_HEADER]) : $this->setOption(CURLOPT_HEADER, FALSE);
		isset($this->options ['setOptions'] [CURLOPT_RETURNTRANSFER]) ? $this->setOption(CURLOPT_RETURNTRANSFER, $this->options ['setOptions'] [CURLOPT_RETURNTRANSFER]) : $this->setOption(CURLOPT_RETURNTRANSFER, TRUE);
		isset($this->options ['setOptions'] [CURLOPT_FOLLOWLOCATION]) ? $this->setOption(CURLOPT_FOLLOWLOCATIO, $this->options ['setOptions'] [CURLOPT_FOLLOWLOCATION]) : $this->setOption(CURLOPT_FOLLOWLOCATION, TRUE);
		isset($this->options ['setOptions'] [CURLOPT_FAILONERROR]) ? $this->setOption(CURLOPT_FAILONERROR, $this->options ['setOptions'] [CURLOPT_FAILONERROR]) : $this->setOption(CURLOPT_FAILONERROR, TRUE);
	}

	/*
	  @MAIN FUNCTION FOR PROCESSING CURL
	 */

	public function run($url, $GET = TRUE, $POSTSTRING = array()) {
		$this->setUrl($url);
		if (!$this->url)
			throw new CException(Yii::t('Curl', 'You must set Url.'));
		$this->ch = curl_init();
		self::checkOptions($this->options, $this->validOptions);

		if ($GET == TRUE) {
			$this->setOption(CURLOPT_URL, $this->url);
			$this->defaults();
		} else {
			$this->setOption(CURLOPT_URL, $this->url);
			$this->defaults();
			$this->setOption(CURLOPT_POST, TRUE);
			$this->setOption(CURLOPT_POSTFIELDS, $this->cleanPost($POSTSTRING));
		}

		if (isset($this->options ['setOptions']))
			foreach ($this->options ['setOptions'] as $k => $v)
				$this->setOption($k, $v);

		isset($this->options ['login']) ? $this->setHttpLogin($this->options ['login'] ['username'], $this->options ['login'] ['password']) : null;
		isset($this->options ['proxy']) ? $this->setProxy($this->options ['proxy'] ['url'], $this->options ['proxy'] ['port']) : null;

		if (isset($this->options ['proxylogin'])) {
			if (!isset($this->options ['proxy']))
				throw new CException(Yii::t('Curl', 'If you use "proxylogin", you must define "proxy" with arrays.'));
			else
				$this->setProxyLogin($this->options ['login'] ['username'], $this->options ['login'] ['password']);
		}

		$return = curl_exec($this->ch);

// Request failed
		if ($return === FALSE) {
			$this->error_code = curl_errno($this->ch);
			$this->error_string = curl_error($this->ch);
			curl_close($this->ch);
			echo "Error code: " . $this->error_code . "<br />";
			echo "Error string: " . $this->error_string;

// Request successful
		} else {
			$this->info = curl_getinfo($this->ch);
			curl_close($this->ch);
			return $return;
		}
	}

	/**
	 * Arrays are walked through using the key as a the name.  Arrays
	 * of Arrays are emitted as repeated fields consistent with such things
	 * as checkboxes.
	 * @desc Return data as a post string.
	 * @param mixed by reference data to be written.
	 * @param string [optional] name of the datum.
	 */
	protected function &cleanPost(&$string, $name = NULL) {
		$thePostString = '';
		$thePrefix = $name;

		if (is_array($string)) {
			foreach ($string as $k => $v) {
				if ($thePrefix === NULL) {
					$thePostString .= '&' . self::cleanPost($v, $k);
				} else {
					$thePostString .= '&' . self::cleanPost($v, $thePrefix . '[' . $k . ']');
				}
			}
		} else {
			$thePostString .= '&' . urlencode((string) $thePrefix) . '=' . urlencode($string);
		}

		$r = & substr($thePostString, 1);

		return $r;
	}

}

修改  application 中数组键components下的 main.php  文件

引入:

	'curl' => array(
            'class' => 'application.extensions.curl.Curl',
        ),

调用:

$data = array(
	'uname' => 'changrui',
	'upass' => md5(123456),
);
$result = Yii::app()->curl->run('http://interface.property.com/login.html', FALSE, $data);