<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/

namespace Magento\Framework\App;

/**
* An error handler that converts runtime errors into exceptions
*/
class ErrorHandler
{
/**
* Error messages
*
* @var array
*/
protected $errorPhrases = [
E_ERROR => 'Error',
E_WARNING => 'Warning',
E_PARSE => 'Parse Error',
E_NOTICE => 'Notice',
E_CORE_ERROR => 'Core Error',
E_CORE_WARNING => 'Core Warning',
E_COMPILE_ERROR => 'Compile Error',
E_COMPILE_WARNING => 'Compile Warning',
E_USER_ERROR => 'User Error',
E_USER_WARNING => 'User Warning',
E_USER_NOTICE => 'User Notice',
E_STRICT => 'Strict Notice',
E_RECOVERABLE_ERROR => 'Recoverable Error',
E_DEPRECATED => 'Deprecated Functionality',
E_USER_DEPRECATED => 'User Deprecated Functionality',
];

/**
* Custom error handler
*
* @param int $errorNo
* @param string $errorStr
* @param string $errorFile
* @param int $errorLine
* @return bool
* @throws \Exception
*/
public function handler($errorNo, $errorStr, $errorFile, $errorLine)
{
if (strpos($errorStr, 'DateTimeZone::__construct') !== false) {
// there's no way to distinguish between caught system exceptions and warnings
return false;
}

$errorNo = $errorNo & error_reporting();
if ($errorNo == 0) {
return false;
}

$msg = isset($this->errorPhrases[$errorNo]) ? $this->errorPhrases[$errorNo] : "Unknown error ({$errorNo})";
$msg .= ": {$errorStr} in {$errorFile} on line {$errorLine}";
throw new \Exception($msg);
}
}