vendor/symfony/error-handler/ErrorHandler.php line 384

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  1. <?php
  3. /*
  4. * This file is part of the Symfony package.
  5. *
  6. * (c) Fabien Potencier <fabien@symfony.com>
  7. *
  8. * For the full copyright and license information, please view the LICENSE
  9. * file that was distributed with this source code.
  10. */
  12. namespace Symfony\Component\ErrorHandler;
  14. use Psr\Log\LoggerInterface;
  15. use Psr\Log\LogLevel;
  16. use Symfony\Component\ErrorHandler\Error\FatalError;
  17. use Symfony\Component\ErrorHandler\Error\OutOfMemoryError;
  18. use Symfony\Component\ErrorHandler\ErrorEnhancer\ClassNotFoundErrorEnhancer;
  19. use Symfony\Component\ErrorHandler\ErrorEnhancer\ErrorEnhancerInterface;
  20. use Symfony\Component\ErrorHandler\ErrorEnhancer\UndefinedFunctionErrorEnhancer;
  21. use Symfony\Component\ErrorHandler\ErrorEnhancer\UndefinedMethodErrorEnhancer;
  22. use Symfony\Component\ErrorHandler\ErrorRenderer\CliErrorRenderer;
  23. use Symfony\Component\ErrorHandler\ErrorRenderer\HtmlErrorRenderer;
  24. use Symfony\Component\ErrorHandler\Exception\SilencedErrorContext;
  26. /**
  27. * A generic ErrorHandler for the PHP engine.
  28. *
  29. * Provides five bit fields that control how errors are handled:
  30. * - thrownErrors: errors thrown as \ErrorException
  31. * - loggedErrors: logged errors, when not @-silenced
  32. * - scopedErrors: errors thrown or logged with their local context
  33. * - tracedErrors: errors logged with their stack trace
  34. * - screamedErrors: never @-silenced errors
  35. *
  36. * Each error level can be logged by a dedicated PSR-3 logger object.
  37. * Screaming only applies to logging.
  38. * Throwing takes precedence over logging.
  39. * Uncaught exceptions are logged as E_ERROR.
  40. * E_DEPRECATED and E_USER_DEPRECATED levels never throw.
  41. * E_RECOVERABLE_ERROR and E_USER_ERROR levels always throw.
  42. * Non catchable errors that can be detected at shutdown time are logged when the scream bit field allows so.
  43. * As errors have a performance cost, repeated errors are all logged, so that the developer
  44. * can see them and weight them as more important to fix than others of the same level.
  45. *
  46. * @author Nicolas Grekas <p@tchwork.com>
  47. * @author Grégoire Pineau <lyrixx@lyrixx.info>
  48. *
  49. * @final
  50. */
  51. class ErrorHandler
  52. {
  53. private array $levels = [
  54. \E_DEPRECATED => 'Deprecated',
  55. \E_USER_DEPRECATED => 'User Deprecated',
  56. \E_NOTICE => 'Notice',
  57. \E_USER_NOTICE => 'User Notice',
  58. \E_STRICT => 'Runtime Notice',
  59. \E_WARNING => 'Warning',
  60. \E_USER_WARNING => 'User Warning',
  61. \E_COMPILE_WARNING => 'Compile Warning',
  62. \E_CORE_WARNING => 'Core Warning',
  63. \E_USER_ERROR => 'User Error',
  64. \E_RECOVERABLE_ERROR => 'Catchable Fatal Error',
  65. \E_COMPILE_ERROR => 'Compile Error',
  66. \E_PARSE => 'Parse Error',
  67. \E_ERROR => 'Error',
  68. \E_CORE_ERROR => 'Core Error',
  69. ];
  71. private array $loggers = [
  72. \E_DEPRECATED => [null, LogLevel::INFO],
  73. \E_USER_DEPRECATED => [null, LogLevel::INFO],
  74. \E_NOTICE => [null, LogLevel::WARNING],
  75. \E_USER_NOTICE => [null, LogLevel::WARNING],
  76. \E_STRICT => [null, LogLevel::WARNING],
  77. \E_WARNING => [null, LogLevel::WARNING],
  78. \E_USER_WARNING => [null, LogLevel::WARNING],
  79. \E_COMPILE_WARNING => [null, LogLevel::WARNING],
  80. \E_CORE_WARNING => [null, LogLevel::WARNING],
  81. \E_USER_ERROR => [null, LogLevel::CRITICAL],
  82. \E_RECOVERABLE_ERROR => [null, LogLevel::CRITICAL],
  83. \E_COMPILE_ERROR => [null, LogLevel::CRITICAL],
  84. \E_PARSE => [null, LogLevel::CRITICAL],
  85. \E_ERROR => [null, LogLevel::CRITICAL],
  86. \E_CORE_ERROR => [null, LogLevel::CRITICAL],
  87. ];
  89. private int $thrownErrors = 0x1FFF; // E_ALL - E_DEPRECATED - E_USER_DEPRECATED
  90. private int $scopedErrors = 0x1FFF; // E_ALL - E_DEPRECATED - E_USER_DEPRECATED
  91. private int $tracedErrors = 0x77FB; // E_ALL - E_STRICT - E_PARSE
  92. private int $screamedErrors = 0x55; // E_ERROR + E_CORE_ERROR + E_COMPILE_ERROR + E_PARSE
  93. private int $loggedErrors = 0;
  94. private \Closure $configureException;
  95. private bool $debug;
  97. private bool $isRecursive = false;
  98. private bool $isRoot = false;
  99. private $exceptionHandler;
  100. private ?BufferingLogger $bootstrappingLogger = null;
  102. private static ?string $reservedMemory = null;
  103. private static array $silencedErrorCache = [];
  104. private static int $silencedErrorCount = 0;
  105. private static int $exitCode = 0;
  107. /**
  108. * Registers the error handler.
  109. */
  110. public static function register(?self $handler = null, bool $replace = true): self
  111. {
  112. if (null === self::$reservedMemory) {
  113. self::$reservedMemory = str_repeat('x', 32768);
  114. register_shutdown_function(__CLASS__.'::handleFatalError');
  115. }
  117. if ($handlerIsNew = null === $handler) {
  118. $handler = new static();
  119. }
  121. if (null === $prev = set_error_handler([$handler, 'handleError'])) {
  122. restore_error_handler();
  123. // Specifying the error types earlier would expose us to https://bugs.php.net/63206
  124. set_error_handler([$handler, 'handleError'], $handler->thrownErrors | $handler->loggedErrors);
  125. $handler->isRoot = true;
  126. }
  128. if ($handlerIsNew && \is_array($prev) && $prev[0] instanceof self) {
  129. $handler = $prev[0];
  130. $replace = false;
  131. }
  132. if (!$replace && $prev) {
  133. restore_error_handler();
  134. $handlerIsRegistered = \is_array($prev) && $handler === $prev[0];
  135. } else {
  136. $handlerIsRegistered = true;
  137. }
  138. if (\is_array($prev = set_exception_handler([$handler, 'handleException'])) && $prev[0] instanceof self) {
  139. restore_exception_handler();
  140. if (!$handlerIsRegistered) {
  141. $handler = $prev[0];
  142. } elseif ($handler !== $prev[0] && $replace) {
  143. set_exception_handler([$handler, 'handleException']);
  144. $p = $prev[0]->setExceptionHandler(null);
  145. $handler->setExceptionHandler($p);
  146. $prev[0]->setExceptionHandler($p);
  147. }
  148. } else {
  149. $handler->setExceptionHandler($prev ?? [$handler, 'renderException']);
  150. }
  152. $handler->throwAt(\E_ALL & $handler->thrownErrors, true);
  154. return $handler;
  155. }
  157. /**
  158. * Calls a function and turns any PHP error into \ErrorException.
  159. *
  160. * @throws \ErrorException When $function(...$arguments) triggers a PHP error
  161. */
  162. public static function call(callable $function, mixed ...$arguments): mixed
  163. {
  164. set_error_handler(static function (int $type, string $message, string $file, int $line) {
  165. if (__FILE__ === $file) {
  166. $trace = debug_backtrace(\DEBUG_BACKTRACE_IGNORE_ARGS, 3);
  167. $file = $trace[2]['file'] ?? $file;
  168. $line = $trace[2]['line'] ?? $line;
  169. }
  171. throw new \ErrorException($message, 0, $type, $file, $line);
  172. });
  174. try {
  175. return $function(...$arguments);
  176. } finally {
  177. restore_error_handler();
  178. }
  179. }
  181. public function __construct(?BufferingLogger $bootstrappingLogger = null, bool $debug = false)
  182. {
  183. if ($bootstrappingLogger) {
  184. $this->bootstrappingLogger = $bootstrappingLogger;
  185. $this->setDefaultLogger($bootstrappingLogger);
  186. }
  187. $traceReflector = new \ReflectionProperty(\Exception::class, 'trace');
  188. $this->configureException = \Closure::bind(static function ($e, $trace, $file = null, $line = null) use ($traceReflector) {
  189. $traceReflector->setValue($e, $trace);
  190. $e->file = $file ?? $e->file;
  191. $e->line = $line ?? $e->line;
  192. }, null, new class() extends \Exception {
  193. });
  194. $this->debug = $debug;
  195. }
  197. /**
  198. * Sets a logger to non assigned errors levels.
  199. *
  200. * @param LoggerInterface $logger A PSR-3 logger to put as default for the given levels
  201. * @param array|int|null $levels An array map of E_* to LogLevel::* or an integer bit field of E_* constants
  202. * @param bool $replace Whether to replace or not any existing logger
  203. */
  204. public function setDefaultLogger(LoggerInterface $logger, array|int|null $levels = \E_ALL, bool $replace = false): void
  205. {
  206. $loggers = [];
  208. if (\is_array($levels)) {
  209. foreach ($levels as $type => $logLevel) {
  210. if (empty($this->loggers[$type][0]) || $replace || $this->loggers[$type][0] === $this->bootstrappingLogger) {
  211. $loggers[$type] = [$logger, $logLevel];
  212. }
  213. }
  214. } else {
  215. $levels ??= \E_ALL;
  216. foreach ($this->loggers as $type => $log) {
  217. if (($type & $levels) && (empty($log[0]) || $replace || $log[0] === $this->bootstrappingLogger)) {
  218. $log[0] = $logger;
  219. $loggers[$type] = $log;
  220. }
  221. }
  222. }
  224. $this->setLoggers($loggers);
  225. }
  227. /**
  228. * Sets a logger for each error level.
  229. *
  230. * @param array $loggers Error levels to [LoggerInterface|null, LogLevel::*] map
  231. *
  232. * @throws \InvalidArgumentException
  233. */
  234. public function setLoggers(array $loggers): array
  235. {
  236. $prevLogged = $this->loggedErrors;
  237. $prev = $this->loggers;
  238. $flush = [];
  240. foreach ($loggers as $type => $log) {
  241. if (!isset($prev[$type])) {
  242. throw new \InvalidArgumentException('Unknown error type: '.$type);
  243. }
  244. if (!\is_array($log)) {
  245. $log = [$log];
  246. } elseif (!\array_key_exists(0, $log)) {
  247. throw new \InvalidArgumentException('No logger provided.');
  248. }
  249. if (null === $log[0]) {
  250. $this->loggedErrors &= ~$type;
  251. } elseif ($log[0] instanceof LoggerInterface) {
  252. $this->loggedErrors |= $type;
  253. } else {
  254. throw new \InvalidArgumentException('Invalid logger provided.');
  255. }
  256. $this->loggers[$type] = $log + $prev[$type];
  258. if ($this->bootstrappingLogger && $prev[$type][0] === $this->bootstrappingLogger) {
  259. $flush[$type] = $type;
  260. }
  261. }
  262. $this->reRegister($prevLogged | $this->thrownErrors);
  264. if ($flush) {
  265. foreach ($this->bootstrappingLogger->cleanLogs() as $log) {
  266. $type = ThrowableUtils::getSeverity($log[2]['exception']);
  267. if (!isset($flush[$type])) {
  268. $this->bootstrappingLogger->log($log[0], $log[1], $log[2]);
  269. } elseif ($this->loggers[$type][0]) {
  270. $this->loggers[$type][0]->log($this->loggers[$type][1], $log[1], $log[2]);
  271. }
  272. }
  273. }
  275. return $prev;
  276. }
  278. public function setExceptionHandler(?callable $handler): ?callable
  279. {
  280. $prev = $this->exceptionHandler;
  281. $this->exceptionHandler = $handler;
  283. return $prev;
  284. }
  286. /**
  287. * Sets the PHP error levels that throw an exception when a PHP error occurs.
  288. *
  289. * @param int $levels A bit field of E_* constants for thrown errors
  290. * @param bool $replace Replace or amend the previous value
  291. */
  292. public function throwAt(int $levels, bool $replace = false): int
  293. {
  294. $prev = $this->thrownErrors;
  295. $this->thrownErrors = ($levels | \E_RECOVERABLE_ERROR | \E_USER_ERROR) & ~\E_USER_DEPRECATED & ~\E_DEPRECATED;
  296. if (!$replace) {
  297. $this->thrownErrors |= $prev;
  298. }
  299. $this->reRegister($prev | $this->loggedErrors);
  301. return $prev;
  302. }
  304. /**
  305. * Sets the PHP error levels for which local variables are preserved.
  306. *
  307. * @param int $levels A bit field of E_* constants for scoped errors
  308. * @param bool $replace Replace or amend the previous value
  309. */
  310. public function scopeAt(int $levels, bool $replace = false): int
  311. {
  312. $prev = $this->scopedErrors;
  313. $this->scopedErrors = $levels;
  314. if (!$replace) {
  315. $this->scopedErrors |= $prev;
  316. }
  318. return $prev;
  319. }
  321. /**
  322. * Sets the PHP error levels for which the stack trace is preserved.
  323. *
  324. * @param int $levels A bit field of E_* constants for traced errors
  325. * @param bool $replace Replace or amend the previous value
  326. */
  327. public function traceAt(int $levels, bool $replace = false): int
  328. {
  329. $prev = $this->tracedErrors;
  330. $this->tracedErrors = $levels;
  331. if (!$replace) {
  332. $this->tracedErrors |= $prev;
  333. }
  335. return $prev;
  336. }
  338. /**
  339. * Sets the error levels where the @-operator is ignored.
  340. *
  341. * @param int $levels A bit field of E_* constants for screamed errors
  342. * @param bool $replace Replace or amend the previous value
  343. */
  344. public function screamAt(int $levels, bool $replace = false): int
  345. {
  346. $prev = $this->screamedErrors;
  347. $this->screamedErrors = $levels;
  348. if (!$replace) {
  349. $this->screamedErrors |= $prev;
  350. }
  352. return $prev;
  353. }
  355. /**
  356. * Re-registers as a PHP error handler if levels changed.
  357. */
  358. private function reRegister(int $prev): void
  359. {
  360. if ($prev !== ($this->thrownErrors | $this->loggedErrors)) {
  361. $handler = set_error_handler('is_int');
  362. $handler = \is_array($handler) ? $handler[0] : null;
  363. restore_error_handler();
  364. if ($handler === $this) {
  365. restore_error_handler();
  366. if ($this->isRoot) {
  367. set_error_handler([$this, 'handleError'], $this->thrownErrors | $this->loggedErrors);
  368. } else {
  369. set_error_handler([$this, 'handleError']);
  370. }
  371. }
  372. }
  373. }
  375. /**
  376. * Handles errors by filtering then logging them according to the configured bit fields.
  377. *
  378. * @return bool Returns false when no handling happens so that the PHP engine can handle the error itself
  379. *
  380. * @throws \ErrorException When $this->thrownErrors requests so
  381. *
  382. * @internal
  383. */
  384. public function handleError(int $type, string $message, string $file, int $line): bool
  385. {
  386. if (\E_WARNING === $type && '"' === $message[0] && str_contains($message, '" targeting switch is equivalent to "break')) {
  387. $type = \E_DEPRECATED;
  388. }
  390. // Level is the current error reporting level to manage silent error.
  391. $level = error_reporting();
  392. $silenced = 0 === ($level & $type);
  393. // Strong errors are not authorized to be silenced.
  394. $level |= \E_RECOVERABLE_ERROR | \E_USER_ERROR | \E_DEPRECATED | \E_USER_DEPRECATED;
  395. $log = $this->loggedErrors & $type;
  396. $throw = $this->thrownErrors & $type & $level;
  397. $type &= $level | $this->screamedErrors;
  399. // Never throw on warnings triggered by assert()
  400. if (\E_WARNING === $type && 'a' === $message[0] && 0 === strncmp($message, 'assert(): ', 10)) {
  401. $throw = 0;
  402. }
  404. if (!$type || (!$log && !$throw)) {
  405. return false;
  406. }
  408. $logMessage = $this->levels[$type].': '.$message;
  410. if (!$throw && !($type & $level)) {
  411. if (!isset(self::$silencedErrorCache[$id = $file.':'.$line])) {
  412. $lightTrace = $this->tracedErrors & $type ? $this->cleanTrace(debug_backtrace(\DEBUG_BACKTRACE_IGNORE_ARGS, 5), $type, $file, $line, false) : [];
  413. $errorAsException = new SilencedErrorContext($type, $file, $line, isset($lightTrace[1]) ? [$lightTrace[0]] : $lightTrace);
  414. } elseif (isset(self::$silencedErrorCache[$id][$message])) {
  415. $lightTrace = null;
  416. $errorAsException = self::$silencedErrorCache[$id][$message];
  417. ++$errorAsException->count;
  418. } else {
  419. $lightTrace = [];
  420. $errorAsException = null;
  421. }
  423. if (100 < ++self::$silencedErrorCount) {
  424. self::$silencedErrorCache = $lightTrace = [];
  425. self::$silencedErrorCount = 1;
  426. }
  427. if ($errorAsException) {
  428. self::$silencedErrorCache[$id][$message] = $errorAsException;
  429. }
  430. if (null === $lightTrace) {
  431. return true;
  432. }
  433. } else {
  434. if (str_contains($message, '@anonymous')) {
  435. $backtrace = debug_backtrace(false, 5);
  437. for ($i = 1; isset($backtrace[$i]); ++$i) {
  438. if (isset($backtrace[$i]['function'], $backtrace[$i]['args'][0])
  439. && ('trigger_error' === $backtrace[$i]['function'] || 'user_error' === $backtrace[$i]['function'])
  440. ) {
  441. if ($backtrace[$i]['args'][0] !== $message) {
  442. $message = $this->parseAnonymousClass($backtrace[$i]['args'][0]);
  443. $logMessage = $this->levels[$type].': '.$message;
  444. }
  446. break;
  447. }
  448. }
  449. }
  451. $errorAsException = new \ErrorException($logMessage, 0, $type, $file, $line);
  453. if ($throw || $this->tracedErrors & $type) {
  454. $backtrace = $errorAsException->getTrace();
  455. $backtrace = $this->cleanTrace($backtrace, $type, $file, $line, $throw);
  456. ($this->configureException)($errorAsException, $backtrace, $file, $line);
  457. } else {
  458. ($this->configureException)($errorAsException, []);
  459. }
  460. }
  462. if ($throw) {
  463. throw $errorAsException;
  464. }
  466. if ($this->isRecursive) {
  467. $log = 0;
  468. } else {
  469. try {
  470. $this->isRecursive = true;
  471. $level = ($type & $level) ? $this->loggers[$type][1] : LogLevel::DEBUG;
  472. $this->loggers[$type][0]->log($level, $logMessage, $errorAsException ? ['exception' => $errorAsException] : []);
  473. } finally {
  474. $this->isRecursive = false;
  475. }
  476. }
  478. return !$silenced && $type && $log;
  479. }
  481. /**
  482. * Handles an exception by logging then forwarding it to another handler.
  483. *
  484. * @internal
  485. */
  486. public function handleException(\Throwable $exception): void
  487. {
  488. $handlerException = null;
  490. if (!$exception instanceof FatalError) {
  491. self::$exitCode = 255;
  493. $type = ThrowableUtils::getSeverity($exception);
  494. } else {
  495. $type = $exception->getError()['type'];
  496. }
  498. if ($this->loggedErrors & $type) {
  499. if (str_contains($message = $exception->getMessage(), "@anonymous\0")) {
  500. $message = $this->parseAnonymousClass($message);
  501. }
  503. if ($exception instanceof FatalError) {
  504. $message = 'Fatal '.$message;
  505. } elseif ($exception instanceof \Error) {
  506. $message = 'Uncaught Error: '.$message;
  507. } elseif ($exception instanceof \ErrorException) {
  508. $message = 'Uncaught '.$message;
  509. } else {
  510. $message = 'Uncaught Exception: '.$message;
  511. }
  513. try {
  514. $this->loggers[$type][0]->log($this->loggers[$type][1], $message, ['exception' => $exception]);
  515. } catch (\Throwable $handlerException) {
  516. }
  517. }
  519. if (!$exception instanceof OutOfMemoryError) {
  520. foreach ($this->getErrorEnhancers() as $errorEnhancer) {
  521. if ($e = $errorEnhancer->enhance($exception)) {
  522. $exception = $e;
  523. break;
  524. }
  525. }
  526. }
  528. $exceptionHandler = $this->exceptionHandler;
  529. $this->exceptionHandler = [$this, 'renderException'];
  531. if (null === $exceptionHandler || $exceptionHandler === $this->exceptionHandler) {
  532. $this->exceptionHandler = null;
  533. }
  535. try {
  536. if (null !== $exceptionHandler) {
  537. $exceptionHandler($exception);
  539. return;
  540. }
  541. $handlerException ??= $exception;
  542. } catch (\Throwable $handlerException) {
  543. }
  544. if ($exception === $handlerException && null === $this->exceptionHandler) {
  545. self::$reservedMemory = null; // Disable the fatal error handler
  546. throw $exception; // Give back $exception to the native handler
  547. }
  549. $loggedErrors = $this->loggedErrors;
  550. if ($exception === $handlerException) {
  551. $this->loggedErrors &= ~$type;
  552. }
  554. try {
  555. $this->handleException($handlerException);
  556. } finally {
  557. $this->loggedErrors = $loggedErrors;
  558. }
  559. }
  561. /**
  562. * Shutdown registered function for handling PHP fatal errors.
  563. *
  564. * @param array|null $error An array as returned by error_get_last()
  565. *
  566. * @internal
  567. */
  568. public static function handleFatalError(?array $error = null): void
  569. {
  570. if (null === self::$reservedMemory) {
  571. return;
  572. }
  574. $handler = self::$reservedMemory = null;
  575. $handlers = [];
  576. $previousHandler = null;
  577. $sameHandlerLimit = 10;
  579. while (!\is_array($handler) || !$handler[0] instanceof self) {
  580. $handler = set_exception_handler('is_int');
  581. restore_exception_handler();
  583. if (!$handler) {
  584. break;
  585. }
  586. restore_exception_handler();
  588. if ($handler !== $previousHandler) {
  589. array_unshift($handlers, $handler);
  590. $previousHandler = $handler;
  591. } elseif (0 === --$sameHandlerLimit) {
  592. $handler = null;
  593. break;
  594. }
  595. }
  596. foreach ($handlers as $h) {
  597. set_exception_handler($h);
  598. }
  599. if (!$handler) {
  600. return;
  601. }
  602. if ($handler !== $h) {
  603. $handler[0]->setExceptionHandler($h);
  604. }
  605. $handler = $handler[0];
  606. $handlers = [];
  608. if ($exit = null === $error) {
  609. $error = error_get_last();
  610. }
  612. if ($error && $error['type'] &= \E_PARSE | \E_ERROR | \E_CORE_ERROR | \E_COMPILE_ERROR) {
  613. // Let's not throw anymore but keep logging
  614. $handler->throwAt(0, true);
  615. $trace = $error['backtrace'] ?? null;
  617. if (str_starts_with($error['message'], 'Allowed memory') || str_starts_with($error['message'], 'Out of memory')) {
  618. $fatalError = new OutOfMemoryError($handler->levels[$error['type']].': '.$error['message'], 0, $error, 2, false, $trace);
  619. } else {
  620. $fatalError = new FatalError($handler->levels[$error['type']].': '.$error['message'], 0, $error, 2, true, $trace);
  621. }
  622. } else {
  623. $fatalError = null;
  624. }
  626. try {
  627. if (null !== $fatalError) {
  628. self::$exitCode = 255;
  629. $handler->handleException($fatalError);
  630. }
  631. } catch (FatalError) {
  632. // Ignore this re-throw
  633. }
  635. if ($exit && self::$exitCode) {
  636. $exitCode = self::$exitCode;
  637. register_shutdown_function('register_shutdown_function', function () use ($exitCode) { exit($exitCode); });
  638. }
  639. }
  641. /**
  642. * Renders the given exception.
  643. *
  644. * As this method is mainly called during boot where nothing is yet available,
  645. * the output is always either HTML or CLI depending where PHP runs.
  646. */
  647. private function renderException(\Throwable $exception): void
  648. {
  649. $renderer = \in_array(\PHP_SAPI, ['cli', 'phpdbg'], true) ? new CliErrorRenderer() : new HtmlErrorRenderer($this->debug);
  651. $exception = $renderer->render($exception);
  653. if (!headers_sent()) {
  654. http_response_code($exception->getStatusCode());
  656. foreach ($exception->getHeaders() as $name => $value) {
  657. header($name.': '.$value, false);
  658. }
  659. }
  661. echo $exception->getAsString();
  662. }
  664. /**
  665. * Override this method if you want to define more error enhancers.
  666. *
  667. * @return ErrorEnhancerInterface[]
  668. */
  669. protected function getErrorEnhancers(): iterable
  670. {
  671. return [
  672. new UndefinedFunctionErrorEnhancer(),
  673. new UndefinedMethodErrorEnhancer(),
  674. new ClassNotFoundErrorEnhancer(),
  675. ];
  676. }
  678. /**
  679. * Cleans the trace by removing function arguments and the frames added by the error handler and DebugClassLoader.
  680. */
  681. private function cleanTrace(array $backtrace, int $type, string &$file, int &$line, bool $throw): array
  682. {
  683. $lightTrace = $backtrace;
  685. for ($i = 0; isset($backtrace[$i]); ++$i) {
  686. if (isset($backtrace[$i]['file'], $backtrace[$i]['line']) && $backtrace[$i]['line'] === $line && $backtrace[$i]['file'] === $file) {
  687. $lightTrace = \array_slice($lightTrace, 1 + $i);
  688. break;
  689. }
  690. }
  691. if (\E_USER_DEPRECATED === $type) {
  692. for ($i = 0; isset($lightTrace[$i]); ++$i) {
  693. if (!isset($lightTrace[$i]['file'], $lightTrace[$i]['line'], $lightTrace[$i]['function'])) {
  694. continue;
  695. }
  696. if (!isset($lightTrace[$i]['class']) && 'trigger_deprecation' === $lightTrace[$i]['function']) {
  697. $file = $lightTrace[$i]['file'];
  698. $line = $lightTrace[$i]['line'];
  699. $lightTrace = \array_slice($lightTrace, 1 + $i);
  700. break;
  701. }
  702. }
  703. }
  704. if (class_exists(DebugClassLoader::class, false)) {
  705. for ($i = \count($lightTrace) - 2; 0 < $i; --$i) {
  706. if (DebugClassLoader::class === ($lightTrace[$i]['class'] ?? null)) {
  707. array_splice($lightTrace, --$i, 2);
  708. }
  709. }
  710. }
  711. if (!($throw || $this->scopedErrors & $type)) {
  712. for ($i = 0; isset($lightTrace[$i]); ++$i) {
  713. unset($lightTrace[$i]['args'], $lightTrace[$i]['object']);
  714. }
  715. }
  717. return $lightTrace;
  718. }
  720. /**
  721. * Parse the error message by removing the anonymous class notation
  722. * and using the parent class instead if possible.
  723. */
  724. private function parseAnonymousClass(string $message): string
  725. {
  726. return preg_replace_callback('/[a-zA-Z_\x7f-\xff][\\\\a-zA-Z0-9_\x7f-\xff]*+@anonymous\x00.*?\.php(?:0x?|:[0-9]++\$)[0-9a-fA-F]++/', static fn ($m) => class_exists($m[0], false) ? (get_parent_class($m[0]) ?: key(class_implements($m[0])) ?: 'class').'@anonymous' : $m[0], $message);
  727. }
  728. }