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<?php
namespace Engelsystem\Exceptions;
use Throwable;
class Handler
{
/** @var string */
protected $environment;
const ENV_PRODUCTION = 'prod';
const ENV_DEVELOPMENT = 'dev';
/**
* Handler constructor.
*
* @param string $environment production|development
*/
public function __construct($environment = self::ENV_PRODUCTION)
{
$this->environment = $environment;
set_error_handler([$this, 'errorHandler']);
set_exception_handler([$this, 'exceptionHandler']);
}
/**
* @param int $number
* @param string $string
* @param string $file
* @param int $line
* @param array $context
*/
public function errorHandler($number, $string, $file, $line, $context)
{
$trace = array_reverse(debug_backtrace());
$this->handle('error', $number, $string, $file, $line, $context, $trace);
}
/**
* @param Throwable $e
*/
public function exceptionHandler($e)
{
$this->handle(
'exception',
$e->getCode(),
get_class($e) . ': ' . $e->getMessage(),
$e->getFile(),
$e->getLine(),
['exception' => $e]
);
}
/**
* @param string $type
* @param int $number
* @param string $string
* @param string $file
* @param int $line
* @param array $context
* @param array $trace
*/
protected function handle($type, $number, $string, $file, $line, $context = [], $trace = [])
{
error_log(sprintf('%s: Number: %s, String: %s, File: %s:%u, Context: %s',
$type,
$number,
$string,
$file,
$line,
json_encode($context)
));
$file = $this->stripBasePath($file);
if ($this->environment == self::ENV_DEVELOPMENT) {
echo '<pre style="background-color:#333;color:#ccc;z-index:1000;position:fixed;bottom:1em;padding:1em;width:97%;max-height: 90%;overflow-y:auto;">';
echo sprintf('%s: (%s)' . PHP_EOL, ucfirst($type), $number);
var_export([
'string' => $string,
'file' => $file . ':' . $line,
'context' => $context,
'stacktrace' => $this->formatStackTrace($trace),
]);
echo '</pre>';
die();
}
echo 'An <del>un</del>expected error occurred, a team of untrained monkeys has been dispatched to deal with it.';
die();
}
/**
* @param array $stackTrace
* @return array
*/
protected function formatStackTrace($stackTrace)
{
$return = [];
foreach ($stackTrace as $trace) {
$path = '';
$line = '';
if (isset($trace['file']) && isset($trace['line'])) {
$path = $this->stripBasePath($trace['file']);
$line = $trace['line'];
}
$functionName = $trace['function'];
$return[] = [
'file' => $path . ':' . $line,
$functionName => $trace['args'],
];
}
return $return;
}
/**
* @param string $path
* @return string
*/
protected function stripBasePath($path)
{
$basePath = realpath(__DIR__ . '/../..') . '/';
return str_replace($basePath, '', $path);
}
/**
* @param string $environment
*/
public function setEnvironment($environment)
{
$this->environment = $environment;
}
}
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