Add support for multiple identifiers in ignoreErrors configuration

- Update parametersSchema.neon to support 'identifiers' array field
- Modify IgnoredErrorHelper to expand identifiers array into separate rules
- Update IgnoredError::stringifyPattern() to display multiple identifiers
- Add comprehensive tests for identifiers array functionality
- Update IgnoreErrorsTest to reflect new configuration entries

Resolves #13015

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: janedbal

conf/parametersSchema.neon

@@ -109,12 +109,14 @@ parametersSchema:
 			structure([
 				?messages: listOf(string())
 				?identifier: string()
+				?identifiers: listOf(string())
 				?path: string()
 				?reportUnmatched: bool()
 			]),
 			structure([
 				?message: string()
 				?identifier: string()
+				?identifiers: listOf(string())
 				?path: string()
 				?reportUnmatched: bool()
 			]),
@@ -123,18 +125,21 @@ parametersSchema:
 				count: int()
 				path: string()
 				?identifier: string()
+				?identifiers: listOf(string())
 				?reportUnmatched: bool()
 			]),
 			structure([
 				?message: string()
 				paths: listOf(string())
 				?identifier: string()
+				?identifiers: listOf(string())
 				?reportUnmatched: bool()
 			]),
 			structure([
 				?messages: listOf(string())
 				paths: listOf(string())
 				?identifier: string()
+				?identifiers: listOf(string())
 				?reportUnmatched: bool()
 			])
 		)

src/Analyser/Ignore/IgnoredError.php

@@ -37,6 +37,13 @@ public static function stringifyPattern($ignoredError): string
 			} else {
 				$message = sprintf('%s (%s)', $message, $ignoredError['identifier']);
 			}
+		} elseif (isset($ignoredError['identifiers'])) {
+			$identifierList = implode(', ', $ignoredError['identifiers']);
+			if ($message === '') {
+				$message = $identifierList;
+			} else {
+				$message = sprintf('%s (%s)', $message, $identifierList);
+			}
 		}
 
 		if ($message === '') {

src/Analyser/Ignore/IgnoredErrorHelper.php

@@ -40,7 +40,7 @@ public function initialize(): IgnoredErrorHelperResult
 		$expandedIgnoreErrors = [];
 		foreach ($this->ignoreErrors as $ignoreError) {
 			if (is_array($ignoreError)) {
-				if (!isset($ignoreError['message']) && !isset($ignoreError['messages']) && !isset($ignoreError['identifier'])) {
+				if (!isset($ignoreError['message']) && !isset($ignoreError['messages']) && !isset($ignoreError['identifier']) && !isset($ignoreError['identifiers'])) {
 					$errors[] = sprintf(
 						'Ignored error %s is missing a message or an identifier.',
 						Json::encode($ignoreError),
@@ -54,6 +54,13 @@ public function initialize(): IgnoredErrorHelperResult
 						$expandedIgnoreError['message'] = $message;
 						$expandedIgnoreErrors[] = $expandedIgnoreError;
 					}
+				} elseif (isset($ignoreError['identifiers'])) {
+					foreach ($ignoreError['identifiers'] as $identifier) {
+						$expandedIgnoreError = $ignoreError;
+						unset($expandedIgnoreError['identifiers']);
+						$expandedIgnoreError['identifier'] = $identifier;
+						$expandedIgnoreErrors[] = $expandedIgnoreError;
+					}
 				} else {
 					$expandedIgnoreErrors[] = $ignoreError;
 				}

tests/PHPStan/Analyser/AnalyserTest.php

@@ -116,6 +116,28 @@ public function testFileWithAnIgnoredErrorMessages(): void
 		$this->assertEquals([], $result);
 	}
 
+	public function testFileWithAnIgnoredErrorIdentifiers(): void
+	{
+		$result = $this->runAnalyser([['identifiers' => ['tests.alwaysFail']]], true, __DIR__ . '/data/bootstrap-error.php', false);
+		$this->assertEmpty($result);
+	}
+
+	public function testFileWithAnIgnoredErrorIdentifiersWithPath(): void
+	{
+		$result = $this->runAnalyser([['identifiers' => ['tests.alwaysFail'], 'path' => __DIR__ . '/data/bootstrap-error.php']], true, __DIR__ . '/data/bootstrap-error.php', false);
+		$this->assertEmpty($result);
+	}
+
+	public function testFileWithAnIgnoredErrorIdentifiersWithWrongIdentifier(): void
+	{
+		$result = $this->runAnalyser([['identifiers' => ['wrong.identifier']]], true, __DIR__ . '/data/bootstrap-error.php', false);
+		$this->assertCount(2, $result);
+		assert($result[0] instanceof Error);
+		$this->assertSame('Fail.', $result[0]->getMessage());
+		assert(is_string($result[1]));
+		$this->assertSame('Ignored error pattern wrong.identifier was not matched in reported errors.', $result[1]);
+	}
+
 	public function testIgnoringBrokenConfigurationDoesNotWork(): void
 	{
 		$this->markTestIncomplete();

tests/PHPStan/DependencyInjection/IgnoreErrorsTest.php

@@ -9,7 +9,7 @@ class IgnoreErrorsTest extends PHPStanTestCase
 
 	public function testIgnoreErrors(): void
 	{
-		$this->assertCount(12, self::getContainer()->getParameter('ignoreErrors'));
+		$this->assertCount(16, self::getContainer()->getParameter('ignoreErrors'));
 	}
 
 	/**

tests/PHPStan/DependencyInjection/ignoreErrors.neon

@@ -45,3 +45,21 @@ parameters:
 			paths:
 				- '/dir/*'
 			reportUnmatched: false
+		-
+			identifiers:
+				- 'error.identifier'
+		-
+			identifiers:
+				- 'error.identifier'
+			path: '/dir/*'
+		-
+			identifiers:
+				- 'error.identifier'
+			paths:
+				- '/dir/*'
+		-
+			identifiers:
+				- 'error.identifier'
+				- 'another.identifier'
+			path: '/dir/*'
+			reportUnmatched: false