Webrequest method post in wordpress or PHP

Dear Coder
Please help:
I have EA and i need to update Post realtime with interval time  in my wordpress post.

In site will show text Account number balance and open trade .

If the account number is different in post wordpress will show list account number.

i have read https://docs.mql4.com/common/webrequest but confused to post in wordpress.

There are 2 ways to post realtime on wordpress.

Using PHP or API https://developer.wordpress.org/rest-api/reference/pages/#update-a-page

sorry i only have a budget fix, If you can't, please don't respond

Thank you