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clean() checked $path[0] and $path[1] without checking the length, so
clean(' ') and clean('\\') with a backslash separator raised
"Uninitialized string offset" warnings, as did resolve(''). On Windows
resolve() let ".." remove the drive, so resolve('C:\..\Windows')
returned the relative path 'Windows' instead of throwing.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Summary of Changes
Path::clean()checked$path[0]and$path[1]aftertrim()without a length check, so with$ds = '\\'bothclean(' ')andclean('\\')raisedUninitialized string offsetwarnings. It now usesstr_starts_with().Path::resolve('')read$path[0]and raised the same warning. It now returns''.resolve()let..remove the drive:resolve('C:\..\Windows')returned the relative pathWindowsinstead of throwing. A leading drive (C:) is now treated like the root, so climbing above it throws "Path is outside of the defined root" as it does for/..on Unix. Paths below the drive resolve as before (C:/var/www/foo/../joomla→C:\var\www\joomla). The drive handling is limited to Windows, so the behaviour on other systems is unchanged.Testing Instructions
PathTest::testShortPathsDoNotRaiseWarningscollects warnings fromclean(' ', '\\'),clean('\\', '\\')andresolve(''): three warnings before, none after. NewgetCleanData/getResolveDatarows cover the same inputs.PathTest::testResolveKeepsWindowsDrive(Windows only):resolve('C:\a\..\b')isC:\b,resolve('C:\..\Windows')throws. Before, the latter returnedWindows.Documentation Changes Required
docs/overview.mdgets a "Cleaning and resolving paths" section.#88 rewrites
docs/overview.md; whichever of the two is merged second has to resolve the conflict there. #88's "Paths" section ("resolve()throws aFilesystemExceptionwhen the path climbs above its own root") stays correct and could mention the Windows drive.🤖 Generated with Claude Code