Paypal高级API付款代码范例
2011-05-18 15:20 卫佳 阅读(718) 评论(0) 编辑 收藏 举报不仅仅Paypal，支付宝、财付通都一样一样的。
<?php
class PaypalAPI {
private $api_authentication_mode = \'\';// 3TOKEN UNIPAY
private $api_account = \'\';
private $api_password = \'\';
private $api_signature = \'\';
private $api_subject = \'\';
private $paypalPaymentUrl = \'https://www.paypal.com/webscr&cmd=_express-checkout&token=%s\';
private $paypalApiUrl = \'https://api-3t.paypal.com/nvp\';
private $paypalVersion = \'60.0\';
private $query = array();
private $goodNum = 0;
private $amt = 0;
private $error = \'\';
/**
* 获取支付URL
*/
public function getPaymentUrl() {
$this->initializeQuery( \'payment\' );
$response = $this->request( $this->query );
if( !$response ) {
return FALSE;
} else {
return vsprintf($this->paypalPaymentUrl, $response[\'TOKEN\']);
}
}
/**
* 验证 TOKEN 是否合法wedding veil
*/
public function validateToken($token) {
$this->initializeQuery( \'validate\' );
$this->setQuery(\'TOKEN\', $token);
return $this->request( $this->query );
}
/**
* 验证信息
*/
public function getError() {
return $this->error;
}
/**
* 添加商品
*/
public function addGood($goodName, $price, $num=1, $desc=\'\') {
$this->setQuery(\'L_NAME\'.$this->goodNum, $goodName);
$this->setQuery(\'L_AMT\'.$this->goodNum, $price);
$this->setQuery(\'L_QTY\'.$this->goodNum, $num);
if( !empty($desc) ) {
$this->setQuery(\'L_DESC\'.$this->goodNum, $desc);
}
$this->amt += $num*$price;
$this->setQuery(\'AMT\', $this->amt);
$this->goodNum++;
return $this;
}
/**
* 设置属性wedding crown
*/
public function setAttr($key, $val) {
$this->$key = $val;
return $this;
}
/**
*
*/
public function setQuery($name, $val) {
$this->query[$name] = $val;
return $this;
}
private function initializeQuery( $type ) {
$query = Array();
$method = Array( \'validate\'=>\'GetExpressCheckoutDetails\', \'payment\'=>\'SetExpressCheckout\');
$this->setQuery(\'METHOD\', isset($method[$type]) ? $method[$type] : \'\');
$this->setQuery(\'VERSION\', $this->paypalVersion);
switch( $this->api_authentication_mode ) {
case \'3TOKEN\':
$this->setQuery(\'PWD\', $this->api_password);
$this->setQuery(\'USER\', $this->api_account);
$this->setQuery(\'SIGNATURE\', $this->api_signature);
break;
case \'UNIPAY\':
$this->setQuery(\'SUBJECT\', $this->api_subject);
break;
default:
throw new Exception("faild authentication of <b>{$this->api_authentication_mode}</b>");
break;
}
}
private function request( $post ) {
$ch = curl_init();
$chOptions = array(
CURLOPT_URL => $this->paypalApiUrl,
CURLOPT_POST => TRUE,
CURLOPT_POSTFIELDS => is_array($post) ? http_build_query($post) : $post,
CURLOPT_VERBOSE => TRUE,
CURLOPT_SSL_VERIFYPEER => FALSE,
CURLOPT_SSL_VERIFYHOST => FALSE,
CURLOPT_RETURNTRANSFER => TRUE,
);
curl_setopt_array($ch, $chOptions);
$response = curl_exec($ch);
if( curl_errno($ch) ) {
$errno = curl_errno($ch);
$error = curl_error($ch);
curl_close($ch);
throw new Exception( " {$errno} - {$error} " );
}
curl_close($ch);
parse_str( urldecode($response), $response );
if( $response[\'ACK\'] != \'Success\' ) {
$this->error = $response;
return false;
}
return $response;
}
}
$paypal = new PaypalAPI();
$paymentUrl = $paypal->setAttr(\'api_account\', \'高级API帐号\')->setAttr(\'api_password\', \'API帐号密码而非paypal帐户密码\')->setAttr(\'api_signature\', \'密钥\')
->addGood(\'test\',10)
->addGood(\'针织毛衣\',103.5,2)
->setQuery(\'RETURNURL\', \'http://www.baidu.com/\')
->setQuery(\'CANCELURL\', \'http://www.baidu.com/\')
->getPaymentUrl();
if( $paymentUrl ) {
echo "<a href=\'$paymentUrl\' target=\'_blank\'>To pay</a>";
} else {
print_r($paypal->getError());
}
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