Fix PHPStan notice on PHPStan 2.1.23

Author: samsonasik

rules/CodingStyle/Rector/Stmt/NewlineAfterStatementRector.php

@@ -129,7 +129,9 @@ private function processAddNewLine(
                 continue;
             }
 
+            /** @var Stmt $stmt */
             $endLine = $stmt->getEndLine();
+            /** @var Stmt $nextStmt */
             $line = $nextStmt->getStartLine();
             $rangeLine = $line - $endLine;
 

rules/Php70/EregToPcreTransformer.php

@@ -215,7 +215,7 @@ private function processBracket(string $content, int $i, int $l, array &$r, int
         } else {
             $position = $i + 1;
             [$t, $ii] = $this->_ere2pcre($content, $position);
-            if ($ii >= $l || $content[$ii] !== ')') {
+            if ($ii >= $l || ! isset($content[$ii]) || $content[$ii] !== ')') {
                 throw new InvalidEregException('"(" does not have a matching ")"');
             }
 
@@ -265,7 +265,7 @@ private function processSquareBracket(string $s, int $i, int $l, string $cls, bo
             }
 
             $start = false;
-        } while ($i < $l && $s[$i] !== ']');
+        } while ($i < $l && isset($s[$i]) && $s[$i] !== ']');
 
         return [$cls, $i];
     }

rules/Php70/Rector/FuncCall/CallUserMethodRector.php

@@ -67,6 +67,10 @@ public function refactor(Node $node): ?Node
             return null;
         }
 
+        if (! isset(self::OLD_TO_NEW_FUNCTIONS[$this->getName($node)])) {
+            return null;
+        }
+
         $newName = self::OLD_TO_NEW_FUNCTIONS[$this->getName($node)];
         $node->name = new Name($newName);
 

rules/Php73/Rector/FuncCall/ArrayKeyFirstLastRector.php

@@ -147,6 +147,10 @@ private function processArrayKeyFirstLast(
                 continue;
             }
 
+            if (! isset(self::PREVIOUS_TO_NEW_FUNCTIONS[$this->getName($stmt->expr)])) {
+                continue;
+            }
+
             $newName = self::PREVIOUS_TO_NEW_FUNCTIONS[$this->getName($stmt->expr)];
             $keyFuncCall->name = new Name($newName);
 

rules/Php81/Rector/FuncCall/NullToStrictStringFuncCallArgRector.php

@@ -142,7 +142,7 @@ public function provideMinPhpVersion(): int
     private function resolveNamedPositions(FuncCall $funcCall, array $args): array
     {
         $functionName = $this->getName($funcCall);
-        $argNames = NameNullToStrictNullFunctionMap::FUNCTION_TO_PARAM_NAMES[$functionName];
+        $argNames = NameNullToStrictNullFunctionMap::FUNCTION_TO_PARAM_NAMES[$functionName] ?? [];
         $positions = [];
 
         foreach ($args as $position => $arg) {