I dont think there is such a thing as industry standards in php. If it works and does the job then its I presume its industry standard. There are many many ways of doing things in php from what I have learnt. Someone will show you one way of doing things then another person will show you another way.
If you have never used php before then I suggest you start at the basics like creating your very first php page and uploading this to a server.
I know there are editors around but I use dreamweaver and just insert the php code as I go along. I have more control over the webpages this way.
I have never ever seen any clear step by step examples like you asked for, but hey maybe someone could point you in the right direction.