php实现的Curl封装类Curl.class.php用法实例分析

本文实例讲述了php实现的Curl封装类Curl.class.php用法。分享给大家供大家参考。具体如下：

<?php
//curl类
class Curl
{
 function Curl(){
 return true;
 }
 function execute($method, $url, $fields='', $userAgent='', $httpHeaders='', $username='', $password=''){
 $ch = Curl::create();
 if(false === $ch){
 return false;
 }
 if(is_string($url) && strlen($url)){
 $ret = curl_setopt($ch, CURLOPT_URL, $url);
 }else{
 return false;
 }
 //是否显示头部信息
 curl_setopt($ch, CURLOPT_HEADER, false);
 //
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 if($username != ''){
 curl_setopt($ch, CURLOPT_USERPWD, $username . ':' . $password);
 }
 $method = strtolower($method);
 if('post' == $method){
 curl_setopt($ch, CURLOPT_POST, true);
 if(is_array($fields)){
 $sets = array();
 foreach ($fields AS $key => $val){
 $sets[] = $key . '=' . urlencode($val);
 }
 $fields = implode('&',$sets);
 }
 curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
 }else if('put' == $method){
 curl_setopt($ch, CURLOPT_PUT, true);
 }
 //curl_setopt($ch, CURLOPT_PROGRESS, true);
 //curl_setopt($ch, CURLOPT_VERBOSE, true);
 //curl_setopt($ch, CURLOPT_MUTE, false);
 curl_setopt($ch, CURLOPT_TIMEOUT, 10);//设置curl超时秒数
 if(strlen($userAgent)){
 curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
 }
 if(is_array($httpHeaders)){
 curl_setopt($ch, CURLOPT_HTTPHEADER, $httpHeaders);
 }
 $ret = curl_exec($ch);
 if(curl_errno($ch)){
 curl_close($ch);
 return array(curl_error($ch), curl_errno($ch));
 }else{
 curl_close($ch);
 if(!is_string($ret) || !strlen($ret)){
 return false;
 }
 return $ret;
 }
 }
 function post($url, $fields, $userAgent = '', $httpHeaders = '', $username = '', $password = ''){
 $ret = Curl::execute('POST', $url, $fields, $userAgent, $httpHeaders, $username, $password);
 if(false === $ret){
 return false;
 }
 if(is_array($ret)){
 return false;
 }
 return $ret;
 }
 function get($url, $userAgent = '', $httpHeaders = '', $username = '', $password = ''){
 $ret = Curl::execute('GET', $url, '', $userAgent, $httpHeaders, $username, $password);
 if(false === $ret){
 return false;
 }
 if(is_array($ret)){
 return false;
 }
 return $ret;
 }
 function create(){
 $ch = null;
 if(!function_exists('curl_init')){
 return false;
 }
 $ch = curl_init();
 if(!is_resource($ch)){
 return false;
 }
 return $ch;
 }
}
?>

GET用法：

$curl = new Curl();
$curl->get('http://www.XXX.com/');

POST用法：

$curl = new Curl();
$curl->get('http://www.XXX.com/', 'p=1&time=0');

希望本文所述对大家的php程序设计有所帮助。