如何利用php语法模拟不同ip访问

php如何模拟不同ip访问，下面web建站小编给大家详细介绍一下具体代码！

1、新建server.php文件，新增以下代码：

<?php
  
$client_ip = getip();
$referer = getreferer();
  
$allow_ip = '192.168.1.120';
$allow_referer = 'https://ipkd.cn/';
  
if($client_ip==$allow_ip && strpos($referer, $allow_referer)===0){
  echo 'allow access';
}else{
  echo 'deny access';
}
 
// 获取访问者ip
function getip(){
  if(!empty($_SERVER['HTTP_CLIENT_IP'])){
    $cip = $_SERVER['HTTP_CLIENT_IP'];
  }elseif(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){
    $cip = $_SERVER['HTTP_X_FORWARDED_FOR'];
  }elseif(!empty($_SERVER['REMOTE_ADDR'])){
    $cip = $_SERVER['REMOTE_ADDR'];
  }else{
    $cip = '';
  }
  return $cip;
}
 
// 获取访问者来源
function getreferer(){
  if(isset($_SERVER['HTTP_REFERER'])){
    return $_SERVER['HTTP_REFERER'];
  }
  return '';
}
  
?>

2、curl模拟方法：

<?php
function doCurl($url, $data=array(), $header=array(), $referer='', $timeout=30){
  
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
  curl_setopt($ch, CURLOPT_POST, true);
  curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
  curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
  
  // 模拟来源
  curl_setopt($ch, CURLOPT_REFERER, $referer);
  
  $response = curl_exec($ch);
  
  if($error=curl_error($ch)){
    die($error);
  }

  curl_close($ch);
  return $response;
}
  
// 调用
$url = 'https://www.example.com/server.php';
$data = array();
  
// 设置IP
$header = array(
  'CLIENT-IP: 192.168.1.120',
  'X-FORWARDED-FOR: 192.168.1.120'

);
  
// 设置来源
$referer = 'https://ipkd.cn/';
  
$response = doCurl($url, $data, $header, $referer, 5);
  
echo $response;
?>