| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | 	 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | 	namespace TGM; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  | 	 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | 	 * Generic utilities for TGMPA. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | 	 * All methods are static, poor-dev name-spacing class wrapper. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | 	 * Class was called TGM_Utils in 2.5.0 but renamed TGMPA_Utils in 2.5.1 as this was conflicting with Soliloquy. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | 	 * @since 2.5.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | 	 * @package TGM-Plugin-Activation | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  | 	 * @author  Juliette Reinders Folmer | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 16 |  |  | 	 */ | 
            
                                                                        
                            
            
                                    
            
            
                | 17 |  |  | 	class TGMPA_Utils { | 
            
                                                                        
                            
            
                                    
            
            
                | 18 |  |  | 		/** | 
            
                                                                        
                            
            
                                    
            
            
                | 19 |  |  | 		 * Whether the PHP filter extension is enabled. | 
            
                                                                        
                            
            
                                    
            
            
                | 20 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 21 |  |  | 		 * @see http://php.net/book.filter | 
            
                                                                        
                            
            
                                    
            
            
                | 22 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 23 |  |  | 		 * @since 2.5.0 | 
            
                                                                        
                            
            
                                    
            
            
                | 24 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 25 |  |  | 		 * @static | 
            
                                                                        
                            
            
                                    
            
            
                | 26 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 27 |  |  | 		 * @var bool $has_filters True is the extension is enabled. | 
            
                                                                        
                            
            
                                    
            
            
                | 28 |  |  | 		 */ | 
            
                                                                        
                            
            
                                    
            
            
                | 29 |  |  | 		public static $has_filters; | 
            
                                                                        
                            
            
                                    
            
            
                | 30 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 31 |  |  | 		/** | 
            
                                                                        
                            
            
                                    
            
            
                | 32 |  |  | 		 * Wrap an arbitrary string in <em> tags. Meant to be used in combination with array_map(). | 
            
                                                                        
                            
            
                                    
            
            
                | 33 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 34 |  |  | 		 * @since 2.5.0 | 
            
                                                                        
                            
            
                                    
            
            
                | 35 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 36 |  |  | 		 * @static | 
            
                                                                        
                            
            
                                    
            
            
                | 37 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 38 |  |  | 		 * @param string $string Text to be wrapped. | 
            
                                                                        
                            
            
                                    
            
            
                | 39 |  |  | 		 * @return string | 
            
                                                                        
                            
            
                                    
            
            
                | 40 |  |  | 		 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  | 		public static function wrap_in_em( $string ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  | 			return '<em>' . wp_kses_post( $string ) . '</em>'; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 43 |  |  | 		} | 
            
                                                                        
                            
            
                                    
            
            
                | 44 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 45 |  |  | 		/** | 
            
                                                                        
                            
            
                                    
            
            
                | 46 |  |  | 		 * Wrap an arbitrary string in <strong> tags. Meant to be used in combination with array_map(). | 
            
                                                                        
                            
            
                                    
            
            
                | 47 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 48 |  |  | 		 * @since 2.5.0 | 
            
                                                                        
                            
            
                                    
            
            
                | 49 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 50 |  |  | 		 * @static | 
            
                                                                        
                            
            
                                    
            
            
                | 51 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 52 |  |  | 		 * @param string $string Text to be wrapped. | 
            
                                                                        
                            
            
                                    
            
            
                | 53 |  |  | 		 * @return string | 
            
                                                                        
                            
            
                                    
            
            
                | 54 |  |  | 		 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  | 		public static function wrap_in_strong( $string ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  | 			return '<strong>' . wp_kses_post( $string ) . '</strong>'; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 57 |  |  | 		} | 
            
                                                                        
                            
            
                                    
            
            
                | 58 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 59 |  |  | 		/** | 
            
                                                                        
                            
            
                                    
            
            
                | 60 |  |  | 		 * Helper function: Validate a value as boolean | 
            
                                                                        
                            
            
                                    
            
            
                | 61 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 62 |  |  | 		 * @since 2.5.0 | 
            
                                                                        
                            
            
                                    
            
            
                | 63 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 64 |  |  | 		 * @static | 
            
                                                                        
                            
            
                                    
            
            
                | 65 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 66 |  |  | 		 * @param mixed $value Arbitrary value. | 
            
                                                                        
                            
            
                                    
            
            
                | 67 |  |  | 		 * @return bool | 
            
                                                                        
                            
            
                                    
            
            
                | 68 |  |  | 		 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  | 		public static function validate_bool( $value ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  | 			if ( ! isset( self::$has_filters ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  | 				self::$has_filters = extension_loaded( 'filter' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  | 			if ( self::$has_filters ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  | 				return filter_var( $value, FILTER_VALIDATE_BOOLEAN ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  | 			} else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  | 				return self::emulate_filter_bool( $value ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  | 			} | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 79 |  |  | 		} | 
            
                                                                        
                            
            
                                    
            
            
                | 80 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 81 |  |  | 		/** | 
            
                                                                        
                            
            
                                    
            
            
                | 82 |  |  | 		 * Helper function: Cast a value to bool | 
            
                                                                        
                            
            
                                    
            
            
                | 83 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 84 |  |  | 		 * @since 2.5.0 | 
            
                                                                        
                            
            
                                    
            
            
                | 85 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 86 |  |  | 		 * @static | 
            
                                                                        
                            
            
                                    
            
            
                | 87 |  |  | 		 * | 
            
                                                                        
                            
            
                                    
            
            
                | 88 |  |  | 		 * @param mixed $value Value to cast. | 
            
                                                                        
                            
            
                                    
            
            
                | 89 |  |  | 		 * @return bool | 
            
                                                                        
                            
            
                                    
            
            
                | 90 |  |  | 		 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  | 		protected static function emulate_filter_bool( $value ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  | 			// @codingStandardsIgnoreStart | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  | 			static $true  = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  | 				'1', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  | 				'true', 'True', 'TRUE', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  | 				'y', 'Y', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  | 				'yes', 'Yes', 'YES', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  | 				'on', 'On', 'ON', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  | 			); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  | 			static $false = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  | 				'0', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  | 				'false', 'False', 'FALSE', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  | 				'n', 'N', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  | 				'no', 'No', 'NO', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  | 				'off', 'Off', 'OFF', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  | 			); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  | 			// @codingStandardsIgnoreEnd | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  | 			if ( is_bool( $value ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  | 				return $value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  | 			} elseif ( is_int( $value ) && ( 0 === $value || 1 === $value ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  | 				return (bool) $value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  | 			} elseif ( ( is_float( $value ) && ! is_nan( $value ) ) && ( (float) 0 === $value || (float) 1 === $value ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  | 				return (bool) $value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  | 			} elseif ( is_string( $value ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  | 				$value = trim( $value ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  | 				if ( in_array( $value, $true, true ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  | 					return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  | 				} elseif ( in_array( $value, $false, true ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  | 					return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  | 				} else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  | 					return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  | 				} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  | 			return false; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 127 |  |  | 		} | 
            
                                                        
            
                                    
            
            
                | 128 |  |  | 	} // End of class TGMPA_Utils | 
            
                                                        
            
                                    
            
            
                | 129 |  |  |  |