PHP使用CURL实现对带有验证码的网站进行模拟登录的方法_php模拟验证码浏览器登录

<?php
/**
 * 模拟登录
 */
//初始化变量
$cookie_file = "tmp.cookie";
$login_url = "http://111.com/member/login";
$verify_code_url = "http://111.com/member/verifycode";
$url = "http://111.com/member/loginprocess";
echo "正在获取COOKIE...\n";
$curl = curl_init();
$timeout = 10;
curl_setopt($curl,CURLOPT_URL, $login_url);
curl_setopt($curl,CURLOPT_RETURNTRANSFER,1);
curl_setopt($curl,CURLOPT_CONNECTTIMEOUT,$timeout);
curl_setopt($curl,CURLOPT_COOKIEJAR,$cookie_file); //获取COOKIE并存储
$contents = curl_exec($curl);
curl_close($curl);
echo "COOKIE获取完成,正在取验证码...\n";
print_r($contents);
//取出验证码
$curl = curl_init();
curl_setopt($curl,CURLOPT_URL,$verify_code_url);
curl_setopt($curl,CURLOPT_COOKIEFILE, $cookie_file);
curl_setopt($curl,CURLOPT_HEADER,0);
curl_setopt($curl,CURLOPT_RETURNTRANSFER,1);
$img=curl_exec($curl);
curl_close($curl);
$fp=fopen("verifyCode.jpg","w");
fwrite($fp,$img);
fclose($fp);
echo "验证码取出完成，正在休眠，20秒内请把验证码填入code.txt并保存\n";
//停止运行20秒
sleep(20);
echo "休眠完成,开始取验证码..\n";
$code = file_get_contents("code.txt");
echo "验证码成功取出：$code\n";
echo "正在准备模拟登录...\n";
$post =http_build_query(['user'=>'18789866111','password'=>'123456','verify'=>$code]);
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_HEADER,0);
curl_setopt($curl, CURLOPT_RETURNTRANSFER,1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $post);
curl_setopt($curl, CURLOPT_COOKIEFILE, $cookie_file);
$result=curl_exec($curl);
curl_close($curl);
//print_r($result);
$result=json_decode($result,true);
 
if(substr_count($result['msg'],"登录成功"))
{echo "登录成功\n";}
else{echo "登录失败\n";
exit;
}
?>