static string getRelativePath(string $basePath, string $targetPath)
Returns the target path as relative reference from the base path.
Only the URIs path component (no schema, host etc.) is relevant and must be given, starting with a slash. Both paths must be absolute and not contain relative parts. Relative URLs from one resource to another are useful when generating self-contained downloadable document archives. Furthermore, they can be used to reduce the link size in documents.
Example target paths, given a base path of "/a/b/c/d": - "/a/b/c/d" -> "" - "/a/b/c/" -> "./" - "/a/b/" -> "../" - "/a/b/c/other" -> "other" - "/a/x/y" -> "../../x/y"
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