There's a similar app: AWD. From its description:
Main Features:
- Support all major web languages and formats: PHP, JavaScript, CSS, HTML
- A lot of ways to reach your project ( FTP, FTPS, SFTP, WEBDav and growing)
- Integration with web server
- Code highlighting
- Autodetection of file's encoding
- Code completion
- Error checking
- Hardware keyboard support (e.g hotkeys)
- Code beautifying with one click
- Tablet ready UI
- Line numbering
- Quick preview of your page
- Highlighting the current line
- Search and replace with regular expressions
- Unlimited Undo/redo
- Full screen mode
- Recent projects
- Periodical autosaving
- Git integration
- Rename/create/delete/copy-paste files inside you project
As you see, error checking is one of its highlighted features (the emphasis is taken from the original description). Seems like it's exactly what you're looking for. Comes for free, and is well rated (currently 4.6 with almost 500 votes).