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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * PHP version 5.4 and 7  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package   Payever\Core  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author    Hennadii.Shymanskyi <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright 2017-2019 payever GmbH  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license   MIT <https://opensource.org/licenses/MIT>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Payever\ExternalIntegration\Core\Logger;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Psr\Log\AbstractLogger;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Psr\Log\LogLevel;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Class FileLogger  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Simple PSR-3 compatible Logger class.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Recommended for use when there's no advanced logger (e.g. Monolog) provided in user's system.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package   Payever\Core  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author    Hennadii.Shymanskyi <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright 2017-2019 payever GmbH  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license   MIT <https://opensource.org/licenses/MIT>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class FileLogger extends AbstractLogger  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /** @var string */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $logFilePath;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /** @var resource  */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $logFileHandle;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /** @var string */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $channelName;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /** @var int */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $logLevelInt;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /** @var int */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $bufferSize;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /** @var array */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $buffer = array();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /** @var bool */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $shutdownRegistered = false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Log Levels  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $logLevels = array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        LogLevel::EMERGENCY => 0,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        LogLevel::ALERT     => 1,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        LogLevel::CRITICAL  => 2,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        LogLevel::ERROR     => 3,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        LogLevel::WARNING   => 4,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        LogLevel::NOTICE    => 5,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        LogLevel::INFO      => 6,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        LogLevel::DEBUG     => 7  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * FileLogger constructor.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $logFilePath  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $logLevel  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $channelName  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param int    $bufferSize  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function __construct($logFilePath, $logLevel, $channelName = 'payever', $bufferSize = 50)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (!isset($this->logLevels[$logLevel])) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            throw new \InvalidArgumentException(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                sprintf("Log level must be one of Psr\Log\LogLevel constants, %s given", $logLevel) | 
            
            
                                                                        
                            
            
                                    
            
            
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                            );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (!is_readable(dirname($logFilePath))) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            throw new \UnexpectedValueException(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                sprintf("The directory of log file is not readable: %s", $logFilePath) | 
            
            
                                                                        
                            
            
                                    
            
            
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                            );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $bufferSize = (int) $bufferSize;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if ($bufferSize < 1) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            throw new \InvalidArgumentException(sprintf('Buffer size must be > 0, %d given', $bufferSize)); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (!file_exists($logFilePath)) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            touch($logFilePath);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (!($this->logFileHandle = fopen($logFilePath, 'a'))) { | 
            
                            
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                            throw new \UnexpectedValueException(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                sprintf("Can't open file for writing: %s", $logFilePath) | 
            
            
                                                                        
                            
            
                                    
            
            
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                            );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->logFilePath = $logFilePath;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->logLevelInt = $this->logLevels[$logLevel];  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->channelName = $channelName;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->bufferSize = $bufferSize;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $level  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $message  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param array  $context  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function log($level, $message, array $context = array())  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($this->logLevels[$level] > $this->logLevelInt) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (!$this->shutdownRegistered) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->shutdownRegistered = true;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            /** __destruct doesn't get called on fatal errors */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            register_shutdown_function(array($this, 'close'));  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->buffer[] = $this->formatMessage($level, $message, $context);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (count($this->buffer) === $this->bufferSize) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->flush();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * register_shutdown_function handler  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function close()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                                     | 
                
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    138
                 | 
                                    
                                                     | 
                
                 | 
                        $this->flush();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    139
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    140
                 | 
                                    
                                                     | 
                
                 | 
                        fclose($this->logFileHandle);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    141
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    142
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    143
                 | 
                                    
                                                     | 
                
                 | 
                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    144
                 | 
                                    
                                                     | 
                
                 | 
                     * Actually writes collected messages into file  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    145
                 | 
                                    
                                                     | 
                
                 | 
                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    146
                 | 
                                    
                                                     | 
                
                 | 
                    protected function flush()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    147
                 | 
                                    
                                                     | 
                
                 | 
                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    148
                 | 
                                    
                                                     | 
                
                 | 
                        foreach ($this->buffer as $message) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    149
                 | 
                                    
                                                     | 
                
                 | 
                            fwrite($this->logFileHandle, $message);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    150
                 | 
                                    
                                                     | 
                
                 | 
                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    151
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    152
                 | 
                                    
                                                     | 
                
                 | 
                        $this->buffer = array();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    153
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    154
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    155
                 | 
                                    
                                                     | 
                
                 | 
                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    156
                 | 
                                    
                                                     | 
                
                 | 
                     * @param string $level  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    157
                 | 
                                    
                                                     | 
                
                 | 
                     * @param string $message  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    158
                 | 
                                    
                                                     | 
                
                 | 
                     * @param array  $context  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    159
                 | 
                                    
                                                     | 
                
                 | 
                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    160
                 | 
                                    
                                                     | 
                
                 | 
                     * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    161
                 | 
                                    
                                                     | 
                
                 | 
                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    162
                 | 
                                    
                                                     | 
                
                 | 
                    protected function formatMessage($level, $message, array $context)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    163
                 | 
                                    
                                                     | 
                
                 | 
                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    164
                 | 
                                    
                                                     | 
                
                 | 
                        $level = strtoupper($level);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    165
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    166
                 | 
                                    
                                                     | 
                
                 | 
                        return "[{$this->getTimestamp()}] {$this->channelName}.{$level} {$message}\t{$this->serializeContext($context)}\n"; | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    167
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    168
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    169
                 | 
                                    
                                                     | 
                
                 | 
                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    170
                 | 
                                    
                                                     | 
                
                 | 
                     * @param array $context  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    171
                 | 
                                    
                                                     | 
                
                 | 
                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    172
                 | 
                                    
                                                     | 
                
                 | 
                     * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    173
                 | 
                                    
                                                     | 
                
                 | 
                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    174
                 | 
                                    
                                                     | 
                
                 | 
                    protected function serializeContext(array $context)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    175
                 | 
                                    
                                                     | 
                
                 | 
                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    176
                 | 
                                    
                                                     | 
                
                 | 
                        return json_encode($context, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    177
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    178
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    179
                 | 
                                    
                                                     | 
                
                 | 
                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    180
                 | 
                                    
                                                     | 
                
                 | 
                     * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    181
                 | 
                                    
                                                     | 
                
                 | 
                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    182
                 | 
                                    
                                                     | 
                
                 | 
                    protected function getTimestamp()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    183
                 | 
                                    
                                                     | 
                
                 | 
                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    184
                 | 
                                    
                                                     | 
                
                 | 
                        return date('Y-m-d H:i:s.' . microtime(true)); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    185
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    186
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    187
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                        
Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly.
For example, imagine you have a variable
$accountIdthat can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to theidproperty of an instance of theAccountclass. This class holds a proper account, so the id value must no longer be false.Either this assignment is in error or a type check should be added for that assignment.