how can i scrape website where website name has to input by textbox and click on submit button using php

i am trying but my code did not work properly... my codes are not working properly all i used bout working any links ,so please help me to figure out the problems... I would like make a script using PHP to send POST data to another webpage and get the result back.From there you can grab/scrape the content and data to your hearts content. A great thing is now that you have received and stored the cookies from logging in, you have access to ‘authenticated only’ sections of the website. So you can go away and run more curl requests to get those areas of the website.

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