<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Debug\FatalErrorHandler;
use Symfony\Component\Debug\Exception\FatalErrorException;
use Symfony\Component\Debug\Exception\UndefinedMethodException;
/**
* ErrorHandler for undefined methods.
*
* @author Grégoire Pineau <lyrixx@lyrixx.info>
*/
class UndefinedMethodFatalErrorHandler implements FatalErrorHandlerInterface
{
/**
* {@inheritdoc}
*/
public function handleError(array $error, FatalErrorException $exception)
{
preg_match('/^Call to undefined method (.*)::(.*)\(\)$/', $error['message'], $matches);
if (!$matches) {
return null;
}
$className = $matches[1];
$methodName = $matches[2];
$message = sprintf('Attempted to call an undefined method named "%s" of class "%s".', $methodName, $className);
if (!class_exists($className) || null === $methods = get_class_methods($className)) {
// failed to get the class or its methods on which an unknown method was called (for example on an anonymous class)
return new UndefinedMethodException($message, $exception);
}
$candidates = [];
foreach ($methods as $definedMethodName) {
$lev = levenshtein($methodName, $definedMethodName);
if ($lev <= \strlen($methodName) / 3 || false !== strpos($definedMethodName, $methodName)) {
$candidates[] = $definedMethodName;
}
}
if ($candidates) {
sort($candidates);
$last = array_pop($candidates).'"?';
if ($candidates) {
$candidates = 'e.g. "'.implode('", "', $candidates).'" or "'.$last;
} else {
$candidates = '"'.$last;
}
$message .= "\nDid you mean to call ".$candidates;
}
return new UndefinedMethodException($message, $exception);
}
}