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run code in 300+ PHP versions simultaneously
<?php namespace Psr\Log { class LogLevel { const ALERT = 1; const CRITICAL = 2; const ERROR = 3; const WARNING = 4; } class AbstractLogger { } } namespace FTLabs { use \Psr\Log\LogLevel; final class Logger extends \Psr\Log\AbstractLogger { private static $php_error_to_severity = array( E_ERROR => LogLevel::ALERT, E_CORE_ERROR => LogLevel::ALERT, E_PARSE => LogLevel::ALERT, E_COMPILE_ERROR => LogLevel::ALERT, E_RECOVERABLE_ERROR => LogLevel::CRITICAL, E_USER_ERROR => LogLevel::ALERT, E_COMPILE_WARNING => LogLevel::CRITICAL, E_CORE_WARNING => LogLevel::CRITICAL, E_USER_WARNING => LogLevel::CRITICAL, E_WARNING => LogLevel::CRITICAL, E_NOTICE => LogLevel::ERROR, E_USER_NOTICE => LogLevel::ERROR, E_STRICT => LogLevel::WARNING, E_DEPRECATED => LogLevel::WARNING, E_USER_DEPRECATED => LogLevel::WARNING, ); public static function severityForPhpError($errno) { if (isset(self::$php_error_to_severity[$errno])) { return self::$php_error_to_severity[$errno]; } return LogLevel::ERROR; } } } namespace { use FTLabs\Logger; var_dump(Logger::severityForPhpError(E_USER_NOTICE)); }

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