Verify file encoding with grep

List all lines in PHP-files in a directory-tree that contain characters out of the ASCII 7Bit pane:

~ grep -nPR --include=*.php [\xE0-\xFF] *

Does a quick and easy controlling on a full package of files quickly. Finds stuff like this or that.

Tip: If you run a project, specify upfront in which encoding files are provided. If you stick with UTF-8 do that w/o BOMs, you can look them up with grep as well. I worked in one company where three developers were looking for a bug in output for nearly a day until they realized that some BOM has been included in some PHP template … . grep can save you the day.

Related Ticket: #14735 – Encoding Issue in Files

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