auto-fix "Call to function in_array() requires parameter #3 to be set/true."

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@staabm 已经在做这个了。

开始于 2026年11月4日。

  • #349 来自 @staabm —— 未关闭

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php
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Read the linked pull request #349 first; it already has this issue in progress. The issue describes the fixer behavior for in_array(), array_search() and eligible array_keys() calls, including named arguments, splat calls, and types inferred from PHPDoc. Done means only calls whose strict equivalence can be proven are changed, while base64_decode() and array_keys() calls without a search value remain unaffected.

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描述

if we know native haystack and needle types for a in_array, array_keys or array_search call, it would be great we could fix add a true as 3rd parameter in case its missing or can always be true. we should only fix when haystacks' iterable type is a super type of needle (strict comparison). the fixer must not change calls where equivalence cannot be proven.

Example: in_array($needle, X::VALS) into its strict counterpart in_array($needle, X::VALS, true).
https://phpstan.org/r/e288cf2a-08e5-4c06-9255-1a98eefc99fe

named arguments should be supported and calls using the splat operator should be skipped.

we should not fix calls which get their iterable-value type from a phpdoc, e.g.:

/** @return int[] */ 
function getArray(): array {}

function doFoo(int $i):bool {
  return in_array($i, getArray());
}

For array_keys(), only consider calls with at least two arguments, since the strictness flag matters only when a search value is supplied. Calls without a search value should remain unchanged.

The rule also reports calls to other functions, such as base64_decode(). Those calls should not be made fixable by this change.

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