


libcurl also supports HTTPS authentication, HTTP POST, HTTP PUT, FTP upload (this can also be done through PHP's FTP extension), HTTP form-based upload, proxy, cookies and username + password authentication.
PHP’s curl is really easy to use. When searching for relevant articles on the Internet, they are all about curl simulated login. Very few people provide source code for simulated discuz posting.
Copy the code The code is as follows:
$discuz_url = 'http://127.0.0.1/discuz/';//Forum address
$login_url = $discuz_url .'logging.php ?action=login';//Login page address
$post_fields = array();
//The following two items do not need to be modified
$post_fields['loginfield'] = 'username';
$post_fields['loginsubmit'] = 'true';
//Username and password must be filled in
$post_fields['username'] = 'tianxin';
$post_fields['password'] = '111111';
//Security question
$post_fields['questionid '] = 0;
$post_fields['answer'] = '';
//@todo verification code
$post_fields['seccoverify'] = '';
//Get form FORMHASH
$ch = curl_init($login_url );
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$contents = curl_exec($ch);
curl_close($ch);
preg_match('/
if(!empty($matches)) {
$formhash = $matches[1];
} else {
die('Not found the forumhash.');
}
//POST data, get COOKIE, and put the cookie file in the temp directory of the website
$cookie_file = tempnam('./temp','cookie');
$ch = curl_init($login_url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch , CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields);
curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file);
curl_exec($ch);
curl_close($ch);
//Get the key You can use the cookie file to simulate posting, and fid is the column ID of the forum
$send_url = $discuz_url."post.php?action=newthread&fid=2";
$ch = curl_init($send_url);
curl_setopt ($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);
$contents = curl_exec($ch);
curl_close($ch);
//The hash code here is different from the hash code in the login window. The hidden here has an additional id attribute
preg_match('/
if(!empty($matches)) {
$formhash = $matches[1 ];
} else {
die('Not found the forumhash.');
}
$post_data = array();
//Post title
$post_data['subject'] = 'test2';
//Post Content
$post_data['message'] = 'test2';
$post_data['topicsubmit'] = "yes";
$post_data['extra'] = '';
//Post tags
$post_data['tags '] = 'test';
//The hash code of the post, this is very critical! If this hash code is missing, discuz will warn you that the source page is incorrect
$post_data['formhash']=$formhash;
$ch = curl_init($send_url);
curl_setopt($ch, CURLOPT_REFERER, $send_url); //Disguise REFERER
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);
curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);
curl_setopt($ch, CURLOPT_POST, 1 );
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
$contents = curl_exec($ch);
curl_close($ch);
//Clean the cookie file
unlink($cookie_file);
?>
The above introduces the implementation code of discuz forum template in PHP to simulate logging in to discuz forum through curl, including the content of discuz forum template. I hope it will be helpful to friends who are interested in PHP tutorials.

To protect the application from session-related XSS attacks, the following measures are required: 1. Set the HttpOnly and Secure flags to protect the session cookies. 2. Export codes for all user inputs. 3. Implement content security policy (CSP) to limit script sources. Through these policies, session-related XSS attacks can be effectively protected and user data can be ensured.

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In PHP, you can use the session_name() function to configure the session name. The specific steps are as follows: 1. Use the session_name() function to set the session name, such as session_name("my_session"). 2. After setting the session name, call session_start() to start the session. Configuring session names can avoid session data conflicts between multiple applications and enhance security, but pay attention to the uniqueness, security, length and setting timing of session names.

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Setting session cookie parameters in PHP can be achieved through the session_set_cookie_params() function. 1) Use this function to set parameters, such as expiration time, path, domain name, security flag, etc.; 2) Call session_start() to make the parameters take effect; 3) Dynamically adjust parameters according to needs, such as user login status; 4) Pay attention to setting secure and httponly flags to improve security.

The main purpose of using sessions in PHP is to maintain the status of the user between different pages. 1) The session is started through the session_start() function, creating a unique session ID and storing it in the user cookie. 2) Session data is saved on the server, allowing data to be passed between different requests, such as login status and shopping cart content.

How to share a session between subdomains? Implemented by setting session cookies for common domain names. 1. Set the domain of the session cookie to .example.com on the server side. 2. Choose the appropriate session storage method, such as memory, database or distributed cache. 3. Pass the session ID through cookies, and the server retrieves and updates the session data based on the ID.


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