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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * A message logger for the Jetpack Sitemap module.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package Jetpack  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @since 4.8.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Handles logging errors and debug messages for sitemap generator.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * A Jetpack_Sitemap_Logger object keeps track of its birth time as well  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * as a "unique" ID string. Calling the report() method writes a message  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * to the PHP error log as well as the ID string for easier grepping.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @since 4.8.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class Jetpack_Sitemap_Logger { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * A unique-ish string for each logger, enabling us to grep  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * for the messages written by an individual generation phase.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @access private  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @since 4.8.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @var string $key The key string.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	private $key;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * The birth time of this object in microseconds.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @access private  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @since 4.8.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @var int $starttime The birth time.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	private $starttime;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Initializes a new logger object.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @access public  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @since 4.8.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param string $message An optional message string to be written to the debug log on initialization.  | 
            
                            
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                	 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	public function __construct( $message = null ) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                		$this->key = wp_generate_password( 5, false );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		$this->starttime = microtime( true );  | 
            
                            
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                		if ( ! is_null( $message ) ) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                			$this->report( $message );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		return;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Writes a string to the debug log, including the logger's ID string.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @access public  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @since 4.8.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param string $message The string to be written to the log.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function report( $message ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			error_log( 'jp-sitemap-' . $this->key . ': ' . $message );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Writes the elapsed lifetime of the logger to the debug log, with an optional message.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @access public  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @since 4.8.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param string $message The optional message string. Default is the empty string.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function time( $message = '' ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$time = round( microtime( true ) - $this->starttime, 3 );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$this->report( $message . ' ' . $time . ' seconds elapsed.' );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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This check looks for
@paramannotations where the type inferred by our type inference engine differs from the declared type.It makes a suggestion as to what type it considers more descriptive.
Most often this is a case of a parameter that can be null in addition to its declared types.