public static function Error::formatBacktrace in Drupal 8

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Utility/Error.php \Drupal\Core\Utility\Error::formatBacktrace()

Formats a backtrace into a plain-text string.

The calls show values for scalar arguments and type names for complex ones.

Parameters

array $backtrace: A standard PHP backtrace.

Return value

string A plain-text line-wrapped string ready to be put inside <pre>.

7 calls to Error::formatBacktrace()

Error::renderExceptionSafe in core/lib/Drupal/Core/Utility/Error.php

Renders an exception error message without further exceptions.

ErrorTest::testFormatBacktrace in core/tests/Drupal/Tests/Core/Utility/ErrorTest.php

Tests the formatBacktrace() method.

FinalExceptionSubscriber::onException in core/lib/Drupal/Core/EventSubscriber/FinalExceptionSubscriber.php

Handles exceptions for this subscriber.

TestBase::errorHandler in core/modules/simpletest/src/TestBase.php

Handle errors during test runs.

TestBase::exceptionHandler in core/modules/simpletest/src/TestBase.php

Handle exceptions.

... See full list

File

core/lib/Drupal/Core/Utility/Error.php, line 151

Class

Error

Drupal error utility class.

Namespace

Drupal\Core\Utility

Code

public static function formatBacktrace(array $backtrace) {
  $return = '';
  foreach ($backtrace as $trace) {
    $call = [
      'function' => '',
      'args' => [],
    ];
    if (isset($trace['class'])) {
      $call['function'] = $trace['class'] . $trace['type'] . $trace['function'];
    }
    elseif (isset($trace['function'])) {
      $call['function'] = $trace['function'];
    }
    else {
      $call['function'] = 'main';
    }
    if (isset($trace['args'])) {
      foreach ($trace['args'] as $arg) {
        if (is_scalar($arg)) {
          $call['args'][] = is_string($arg) ? '\'' . Xss::filter($arg) . '\'' : $arg;
        }
        else {
          $call['args'][] = ucfirst(gettype($arg));
        }
      }
    }
    $line = '';
    if (isset($trace['line'])) {
      $line = " (Line: {$trace['line']})";
    }
    $return .= $call['function'] . '(' . implode(', ', $call['args']) . "){$line}\n";
  }
  return $return;
}