fix

Author: staabm

src/Analyser/FileAnalyser.php

@@ -49,7 +49,7 @@
 final class FileAnalyser
 {
 
-	/** @var list<Error> */
+	/** @var array<string, Error> */
 	private array $allPhpErrors = [];
 
 	/** @var array<string, Error> */
@@ -326,8 +326,8 @@ public function analyseFile(
 
 		return new FileAnalyserResult(
 			$fileErrors,
-			$this->filteredPhpErrors,
-			$this->allPhpErrors,
+			array_values($this->filteredPhpErrors),
+			array_values($this->allPhpErrors),
 			$locallyIgnoredErrors,
 			$fileCollectedData,
 			array_values(array_unique($fileDependencies)),
@@ -367,7 +367,8 @@ private function collectErrors(array $analysedFiles): void
 
 			$errorMessage = sprintf('%s: %s', $this->getErrorLabel($errno), $errstr);
 
-			$this->allPhpErrors[] = (new Error($errorMessage, $errfile, $errline, false))->withIdentifier('phpstan.php');
+			$errorSignature = hash('sha256',md5(sprintf('%s:%s::%s', $errfile, $errline, $errorMessage)));
+			$this->allPhpErrors[$errorSignature] = (new Error($errorMessage, $errfile, $errline, false))->withIdentifier('phpstan.php');
 
 			if ($errno === E_DEPRECATED) {
 				return true;

tests/PHPStan/Analyser/Bug13813IntegrationTest.php

@@ -27,7 +27,6 @@ public function testBug13813(): void
 
 	/**
 	 * @param string[] $files
-	 * @return Error[]
 	 */
 	private function runAnalyse(array $files): AnalyserResult
 	{

tests/PHPStan/Analyser/Bug13813Rule.php

@@ -20,6 +20,7 @@ public function getNodeType(): string
 	public function processNode(Node $node, Scope $scope): array
 	{
 		for ($i = 0; $i < 100; $i++) {
+			// @phpstan-ignore variable.undefined
 			echo $x; // force emit a PHP warning at runtime
 		}