Report values assigned to variables that are never read - #6330

Merged

ondrejmirtes merged 33 commits into

2.3.xfrom

unused-variables

Sep 10, 2026

Commits on Sep 10, 2026

Remove variable writes that are never read
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68e4440
Remove unused private-method parameters
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6cae955
Remove assignments of values the variables already have
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fd4a172
Use the assigned variables in E2E fixtures
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471b8fd
Use the assigned variables in levels test fixtures
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69e0a94
Normalize paths in NodeScopeResolver::setAnalysedFiles()
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9359d69
Detect unused variables and parameters with immutable handler results
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b1c223b
Bump expected turbo version
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6a8637a
Cover variable reads in nullsafe call arguments
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b1ba6f8
Add regression tests for #12789, #13472 and #14258
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435856a
Add regression test for #12012
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c1bc35d
Add regression test for #11483
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fb7a088
Add regression test for #10202
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5645d3d
Cover PHP-version-dependent unused catch variables
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69b9979
Do not report writes to a variable returned by reference
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bcb75f5
Cover unused writes in statically dead branches
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bbed891
Treat comment-only bodies as no-op stubs in the unused-parameter rules
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3723cc1
Cover array-shift loop inference and statically unreachable assignments
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842976e
Treat func_get_arg() like func_get_args() when observing parameters
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8a3b098
Cover variable liveness across evaluation order and control flow
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8c268f0
Cover variable liveness when foreach scope pollution is disabled
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7fdb62a
Cover variable usage through globals, static initializers and nested captures
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163f9a8
Respect short-circuiting of nullsafe dynamic member names
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610b854
Reuse concrete return types across inference contexts
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695d68f
Keep variables read by fallback Throwable catches live
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bf91dae
Track types written through variable variables
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a33871d
Preserve array writes made while evaluating an offset assignment
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3f12a51
Retain variable mentions in skipped catch bodies
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e5e374f
Observe writes through arrow function reference parameters
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b84e05c
Include implicit throw points when analysing broad catches
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7d2352b
Put the arrow reference fixture PHP version constraint on its first line
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d9ad990
Mark reflection parameter checks and type stringification as non-throwing
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a83b91f
Preserve reflection parameter query return types on PHP 7.4
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5195842