Usage example analysis of Curl encapsulation class Curl.class.php implemented by PHP

The example in this article describes the usage of Curl encapsulation class Curl.class.php implemented in PHP. Share it with everyone for your reference. The details are as follows:

<?php
//curl类
class Curl
{
 function Curl(){
  return true;
 }
 function execute($method, $url, $fields=&#39;&#39;, $userAgent=&#39;&#39;, $httpHeaders=&#39;&#39;, $username=&#39;&#39;, $password=&#39;&#39;){
  $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 != &#39;&#39;){
   curl_setopt($ch, CURLOPT_USERPWD, $username . &#39;:&#39; . $password);
  }
  $method = strtolower($method);
  if(&#39;post&#39; == $method){
   curl_setopt($ch, CURLOPT_POST, true);
   if(is_array($fields)){
    $sets = array();
    foreach ($fields AS $key => $val){
     $sets[] = $key . &#39;=&#39; . urlencode($val);
    }
    $fields = implode(&#39;&&#39;,$sets);
   }
   curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
  }else if(&#39;put&#39; == $method){
   curl_setopt($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 = &#39;&#39;, $httpHeaders = &#39;&#39;, $username = &#39;&#39;, $password = &#39;&#39;){
  $ret = Curl::execute(&#39;POST&#39;, $url, $fields, $userAgent, $httpHeaders, $username, $password);
  if(false === $ret){
   return false;
  }
  if(is_array($ret)){
   return false;
  }
  return $ret;
 }
 function get($url, $userAgent = &#39;&#39;, $httpHeaders = &#39;&#39;, $username = &#39;&#39;, $password = &#39;&#39;){
  $ret = Curl::execute(&#39;GET&#39;, $url, &#39;&#39;, $userAgent, $httpHeaders, $username, $password);
  if(false === $ret){
   return false;
  }
  if(is_array($ret)){
   return false;
  }
  return $ret;
 }
 function create(){
  $ch = null;
  if(!function_exists(&#39;curl_init&#39;)){
   return false;
  }
  $ch = curl_init();
  if(!is_resource($ch)){
   return false;
  }
  return $ch;
 }
}
?>

GET usage:

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

POST usage:

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

I hope this article will be helpful to everyone’s PHP programming design.

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