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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /*  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * This file is part of Yolk - Gamer Network's PHP Framework.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Copyright (c) 2013 Gamer Network Ltd.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Distributed under the MIT License, a copy of which is available in the  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * LICENSE file that was bundled with this package, or online at:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * https://github.com/gamernetwork/yolk-core  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace yolk\helpers;  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                class DateTimeHelper { | 
            
            
                                                                        
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * Convert a value to a timestamp.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @param  mixed $time  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @return integer  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public static function makeTimestamp( $time ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if( is_numeric($time) )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			return (int) $time;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		elseif( $time instanceof \DateTime )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			return $time->getTimestamp();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$ts = strtotime($time);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if( $ts === false )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			throw new \LogicException("Unable convert {$time} to a valid timestamp"); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return $ts;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * Converts a string representation containing one or more of hours, minutes and seconds into a total number of seconds.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * e.g. seconds("3 hours 4 minutes 10 seconds"), seconds("5min"), seconds("4.5h") | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @param  string  $str   string to convert  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 * @return integer|float  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public static function seconds( $str ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$hours   = 0;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$minutes = 0;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$seconds = 0;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if( preg_match('/^\d+:\d+$/', $str) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			list(, $minutes, $seconds) = explode(':', $str); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		elseif( preg_match('/^\d+:\d+:\d+$/', $str) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			list($hours, $minutes, $seconds) = explode(':', $str); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			// convert invalid characters to spaces  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$str = preg_replace('/[^a-z0-9. ]+/iu', ' ', $str); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			// strip multiple spaces  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$str = preg_replace('/ {2,}/u', ' ', $str); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			// compress scales and units together so '2 hours' => '2hours'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$str = preg_replace('/([0-9.]+) ([cdehimnorstu]+)/u', '$1$2', $str); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			foreach( explode(' ', $str) as $item ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				if( !preg_match('/^([0-9.]+)([cdehimnorstu]+)$/u', $item, $m) ) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					return false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				list(, $scale, $unit) = $m;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				$scale = ((float) $scale != (int) $scale) ? (float) $scale : (int) $scale;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				if( preg_match('/^h(r|our|ours)?$/u', $unit) && !$hours ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$hours = $scale;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				elseif( preg_match('/^m(in|ins|inute|inutes)?$/u', $unit) && !$minutes ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$minutes = $scale;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				elseif( preg_match('/^s(ec|ecs|econd|econds)?$/u', $unit) && !$seconds ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$seconds = $scale;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					return false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return ($hours * 3600) + ($minutes * 60) + $seconds;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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                // EOF  |