Issues

• duplicate "parameter $a with no value type specified" errors with type-aliases

  phpstan/phpstan#15350 · Filter by author staabm opened on Oct 2, 2026
  3

• symfony/ux-css slow on big array shape

  performance
  phpstan/phpstan#15348 · Filter by author staabm opened on Oct 1, 2026
  3

• Provide refined type for the int range returned by intdiv

  feature-request
  phpstan/phpstan#15347 · Filter by author stof opened on Oct 1, 2026
  2

• turbo: inline property fetches to local variabes

  performance
  phpstan/phpstan#15339 · Filter by author staabm opened on Sep 30, 2026

• Generated baseline doesn't match errors whose message starts with @ (since 2.2.6)

  bug
  phpstan/phpstan#15337 · Filter by author aivchen opened on Sep 30, 2026 · Easy fixes
  3

• dead catch reported in unserialize()

  bug
  phpstan/phpstan#15329 · Filter by author pilif opened on Sep 28, 2026 · Easy fixes
  2

• always false substr() comparison with literal strings

  feature-request
  phpstan/phpstan#15324 · Filter by author staabm opened on Sep 27, 2026 · Easy fixes
  3

• @phpstan-all-methods-pure is ignored for methods declared by @method

  phpstan/phpstan#15322 · Filter by author rarila opened on Sep 26, 2026

• "impure" is not inferred from "@return $this" when called outside class

  bug
  phpstan/phpstan#15320 · Filter by author mvorisek opened on Sep 26, 2026 · Easy fixes

• Report error when code depends on case-sensitive filesystems

  feature-request
  phpstan/phpstan#15319 · Filter by author staabm opened on Sep 26, 2026
  7

• method.alreadyNarrowedType false positive regression

  waiting for reproducer
  phpstan/phpstan#15317 · Filter by author alecpl opened on Sep 25, 2026
  13

• False positive argument.invalidConstant: any built-in constant rejected for str_pad() $length

  bug
  phpstan/phpstan#15308 · Filter by author olia-bn opened on Sep 24, 2026

• Generic @phpstan-sealed type loses its type arguments after instanceof narrowing (regression in 2.1.46)

  phpstan/phpstan#15289 · Filter by author miguelmeloninnatial opened on Sep 22, 2026

• Template default static leads to OOM of phpstan

  bug
  phpstan/phpstan#15284 · Filter by author nilmerg opened on Sep 21, 2026 · Generics

• Intersection of static and interface with @phpstan-require-extends resolves to never

  bug
  phpstan/phpstan#15283 · Filter by author canvural opened on Sep 21, 2026 · Easy fixes

• Narrow intdiv() return type when both arguments are non-negative

  feature-request
  phpstan/phpstan#15282 · Filter by author whataboutpereira opened on Sep 21, 2026

• playground is missing newlines in overlays

  website
  phpstan/phpstan#15275 · Filter by author staabm opened on Sep 20, 2026
  1

• Callable signature types cannot be used as template bounds

  feature-request
  phpstan/phpstan#15273 · Filter by author klimick opened on Sep 20, 2026 · Generics

• Parameterized class-string is not narrowed after excluding a final class name

  bug
  phpstan/phpstan#15266 · Filter by author klimick opened on Sep 18, 2026 · Easy fixes

• Invariant generic type with never is incorrectly treated as a subtype of other instantiations

  phpstan/phpstan#15265 · Filter by author klimick opened on Sep 18, 2026

• Incorrect variance propagation through star-projected template types

  phpstan/phpstan#15264 · Filter by author klimick opened on Sep 18, 2026

• False positive on array_diff_assoc with non-string values in the first array

  bug
  phpstan/phpstan#15261 · Filter by author rela589n opened on Sep 18, 2026

• require_once file existence check doesn't account for chdir.

  feature-request
  phpstan/phpstan#15260 · Filter by author ssigwart opened on Sep 17, 2026 · Easy fixes

• parallel.loadLimit never reads the system load average

  phpstan/phpstan#15241 · Filter by author SanderMuller opened on Sep 16, 2026
  1

• Constant MB_ONIGURUMA_VERSION is deprecated since 8.6

  feature-request
  phpstan/phpstan#15239 · Filter by author staabm opened on Sep 16, 2026 · Easy fixes