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<?php |
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|
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/* |
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* This file is part of the Symfony package. |
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* |
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* (c) Fabien Potencier <fabien@symfony.com> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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|
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namespace Symfony\Component\Debug\FatalErrorHandler; |
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|
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use Symfony\Component\Debug\Exception\FatalErrorException; |
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use Symfony\Component\Debug\Exception\UndefinedFunctionException; |
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|
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/** |
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* ErrorHandler for undefined functions. |
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* |
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* @author Fabien Potencier <fabien@symfony.com> |
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*/ |
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class UndefinedFunctionFatalErrorHandler implements FatalErrorHandlerInterface |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public function handleError(array $error, FatalErrorException $exception) |
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{ |
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$messageLen = \strlen($error['message']); |
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$notFoundSuffix = '()'; |
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$notFoundSuffixLen = \strlen($notFoundSuffix); |
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if ($notFoundSuffixLen > $messageLen) { |
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return null; |
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} |
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|
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if (0 !== substr_compare($error['message'], $notFoundSuffix, -$notFoundSuffixLen)) { |
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return null; |
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} |
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|
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$prefix = 'Call to undefined function '; |
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$prefixLen = \strlen($prefix); |
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if (0 !== strpos($error['message'], $prefix)) { |
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return null; |
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} |
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|
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$fullyQualifiedFunctionName = substr($error['message'], $prefixLen, -$notFoundSuffixLen); |
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if (false !== $namespaceSeparatorIndex = strrpos($fullyQualifiedFunctionName, '\\')) { |
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$functionName = substr($fullyQualifiedFunctionName, $namespaceSeparatorIndex + 1); |
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$namespacePrefix = substr($fullyQualifiedFunctionName, 0, $namespaceSeparatorIndex); |
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$message = sprintf('Attempted to call function "%s" from namespace "%s".', $functionName, $namespacePrefix); |
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} else { |
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$functionName = $fullyQualifiedFunctionName; |
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$message = sprintf('Attempted to call function "%s" from the global namespace.', $functionName); |
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} |
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|
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$candidates = []; |
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foreach (get_defined_functions() as $type => $definedFunctionNames) { |
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foreach ($definedFunctionNames as $definedFunctionName) { |
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if (false !== $namespaceSeparatorIndex = strrpos($definedFunctionName, '\\')) { |
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$definedFunctionNameBasename = substr($definedFunctionName, $namespaceSeparatorIndex + 1); |
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} else { |
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$definedFunctionNameBasename = $definedFunctionName; |
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} |
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|
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if ($definedFunctionNameBasename === $functionName) { |
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$candidates[] = '\\'.$definedFunctionName; |
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} |
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} |
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} |
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|
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if ($candidates) { |
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sort($candidates); |
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$last = array_pop($candidates).'"?'; |
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if ($candidates) { |
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$candidates = 'e.g. "'.implode('", "', $candidates).'" or "'.$last; |
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} else { |
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$candidates = '"'.$last; |
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} |
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$message .= "\nDid you mean to call ".$candidates; |
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} |
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|
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return new UndefinedFunctionException($message, $exception); |
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} |
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} |
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|
