how to run a script, every time a page loads in chrome

[Kirii]

I want to run a script every time a page loads in chrome.the script is just to run a php code with this url as a parameter. I know o should be using content script but I was struck in that path. I have he proper permissions set in json file but unable to access url parameters in the js file and couldn't implement the on-load function. can you please help.