PHP simulates form post request to implement login

The project needs to write a program that does not require form submission. I checked a lot of information and finally used CURL to simulate post submission. The sample program is as follows:

index.php

<?php
	header("Content-type:text/html;charset=utf-8");
	
	$stuid = "201300301013";
	$pwd = "111336";
	$uri = "127.0.0.1/login.php";//这里换成你服务器的地址
	// 参数数组
 	$data = array (

			'stuid' => $stuid,
 			'pwd' => $pwd			
 	);
	
	$ch = curl_init ();  //初始化curl
	
	curl_setopt ( $ch, CURLOPT_URL, $uri );
	curl_setopt ( $ch, CURLOPT_POST, 1 );  //使用post请求
	curl_setopt ( $ch, CURLOPT_HEADER, 0 );
	curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, 1 );
	curl_setopt ( $ch, CURLOPT_POSTFIELDS, $data);  //提交数据
	curl_setopt ( $ch, CURLOPT_FOLLOWLOCATION, true);  //重定向地址也输出
	$return = curl_exec ( $ch ); //得到返回值
	
	curl_close ( $ch );  //关闭
	
	print_r($return);  //输出返回值

?>

login.php

<?php
      $user = $_POST[&#39;stuid&#39;];
      $pwd = $_POST[&#39;pwd&#39;];
     &#160;

     /*
          这里对得到的数据进行处理
     */
      
      echo "成功！";  //最后输出结果

?>

The browser will output "success".

This is just a simple example. There are many things about curl that need to be studied. If you use PHP's curl to write a crawler, the mechanism is not very good. It is recommended to use java to implement the crawler program.

My own experience, for reference only!

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