How to prevent external malicious submissions from calling the ajax interface in PHP ajax php post jquery ajax php ajax points

If we use the ajax interface we wrote on our website for ourselves, we can limit the source domain name and determine the source.

Note: Replace www.jb51.net with your own domain name.

Copy the code The code is as follows:

//Judge the source
if(!isset($_SERVER['HTTP_REFERER']) || !stripos($_SERVER['HTTP_REFERER'],'www. jb51.net')) {
echo 'cann`t access';
exit();
}

The above introduces how to prevent external malicious submissions from calling the ajax interface in PHP, including the content of ajax and php. I hope it will be helpful to friends who are interested in PHP tutorials.