> */ public function getNodeTypes() : array { return [FuncCall::class]; } /** * @param FuncCall $node */ public function refactor(Node $node) : ?Node { if (!$this->isName($node, 'strpos')) { return null; } if ($node->isFirstClassCallable()) { return null; } $args = $node->getArgs(); if (!isset($args[0], $args[1])) { return null; } $firstArg = $args[0]; if (!$firstArg->value instanceof FuncCall) { return null; } /** @var FuncCall $innerFuncCall */ $innerFuncCall = $firstArg->value; if (!$this->isName($innerFuncCall, 'strtolower')) { return null; } $secondArg = $args[1]; if (!$secondArg->value instanceof String_) { return null; } if (Strings::match($secondArg->value->value, self::UPPERCASE_REGEX) !== null) { return null; } // pop 1 level up $node->args[0] = $innerFuncCall->getArgs()[0]; $node->name = new Name('stripos'); return $node; } }