This one is pretty easy to update directly in cPanel without a need to edit your wp-config.
Log in to your GoDaddy account.
Next to the cPanel account you want to use, clickManage.
In theSoftwaresection, clickSelect PHP Version. YourCurrent PHP version displays. On the right hand side, there is a link that says Switch to PHP Options. Click it.
Now you can update many of your various settings here, without having to edit files directly. Don't forget to save.
Hope that helps!
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