Just really curious because I’d love to code on mobile using the codeanywhere app and then ship the files over to a project once I’ve finished.
It’d be enough for me just to know that I could do it in the mobile browser. Thanks in advance for any help I get! (I might not reply.)
No that I’m aware of, but Glitch works on mobile browsers too. I regularly edit my apps on my iPhone while out and about.
you can make a file uploader to your site 
or a file manager C:
Does .php work on Glitch
Yes, you can get it running e.g. https://glitch.com/edit/#!/lamp-poc https://glitch.com/edit/#!/php-poc