| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | declare(strict_types=1); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  | namespace SKien\Config; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  * Abstract base class for config components. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  * #### History | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  * - *2021-01-01*   initial version | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * @package SKien/GCalendar | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * @version 1.0.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  * @author Stefanius <[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  * @copyright MIT License - see the LICENSE file for details | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | abstract class AbstractConfig implements ConfigInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |     /** @var array holding the config data    */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |     protected ?array $aConfig = null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |     /** @var string format for date parameters     */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |     protected string $strDateFormat = 'Y-m-d'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |     /** @var string format for datetime parameters     */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |     protected string $strDateTimeFormat = 'Y-m-d H:i'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |      * The constructor expects an valid filename/path to the JSON file. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |      * @param string $strConfigFile | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |     public function __construct(string $strConfigFile) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |         $this->aConfig = $this->parseFile($strConfigFile); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |      * Set the format for date parameters. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |      * See the formatting options DateTime::createFromFormat.  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |      * In most cases, the same letters as for the date() can be used.  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |      * @param string $strFormat | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |      * @link https://www.php.net/manual/en/datetime.createfromformat.php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |     public function setDateFormat(string $strFormat) : void | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |         $this->strDateFormat = $strFormat; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |      * Set the format for datetime parameters. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |      * See the formatting options DateTime::createFromFormat.  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |      * In most cases, the same letters as for the date() can be used.  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |      * @param string $strFormat | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |      * @link https://www.php.net/manual/en/datetime.createfromformat.php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |     public function setDateTimeFormat(string $strFormat) : void | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |         $this->strDateTimeFormat = $strFormat; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |      * Get the value specified by path. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |      * @param string $strPath | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |      * @param mixed $default | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |      * @return mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |     public function getValue(string $strPath, $default = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |         if ($this->aConfig === null) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |             // without valid config file just return the default value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |             return $default; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |         $aPath = $this->splitPath($strPath); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |         $iDepth = count($aPath); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |         $value = null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |         $aValues = $this->aConfig; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |         for ($i = 0; $i < $iDepth; $i++) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |             if (!is_array($aValues)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |                 $value = null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |                 break; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |             $value = $aValues[$aPath[$i]] ?? null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |             if ($value === null) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |                 break; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |             $aValues = $value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |         return $value ?? $default; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |      * Get the string value specified by path. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |      * @param string $strPath | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |      * @param string $strDefault | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |      * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |     public function getString(string $strPath, string $strDefault = '') : string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |         return (string) $this->getValue($strPath, $strDefault); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |      * Get the integer value specified by path. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |      * @param string $strPath | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |      * @param int $iDefault | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |      * @return int | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 105 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 106 |  |  |     public function getInt(string $strPath, int $iDefault = 0) : int | 
            
                                                                        
                            
            
                                    
            
            
                | 107 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 108 |  |  |         return intval($this->getValue($strPath, $iDefault)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |      * Get the integer value specified by path. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |      * @param string $strPath | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |      * @param float $fltDefault | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |      * @return float | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |     public function getFloat(string $strPath, float $fltDefault = 0.0) : float | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |         return floatval($this->getValue($strPath, $fltDefault)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |      * Get the boolean value specified by path. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |      * @param string $strPath | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |      * @param bool $bDefault | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |      * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |     public function getBool(string $strPath, bool $bDefault = false) : bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |         return (bool) $this->getValue($strPath, $bDefault); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |      * Get the date value specified by path. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |      * @param string $strPath | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |      * @param mixed $default default value (unix timestamp, DateTime object or date string) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |      * @return int date as unix timestamp | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |     public function getDate(string $strPath, $default = 0) : int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |         $date = $this->getValue($strPath, $default); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |         if (!is_int($date)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |             $dt = \DateTime::createFromFormat($this->strDateFormat, $date); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |             $date = $default; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |             if ($dt !== false) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |                 $aError = $dt->getLastErrors(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |                 if ($aError['error_count'] == 0) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |                     $dt->setTime(0, 0); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |                     $date = $dt->getTimestamp(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |         return $date; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |      * Get the date and time value specified by path as unix timestamp. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |      * @param string $strPath | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |      * @param int $default default value (unix timestamp) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |      * @return int unix timestamp | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |     public function getDateTime(string $strPath, $default = 0) : int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |         $date = $this->getValue($strPath, $default); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |         if (!is_int($date)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |             $dt = \DateTime::createFromFormat($this->strDateTimeFormat, $date); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |             $date = $default; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |             if ($dt !== false) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |                 $aError = $dt->getLastErrors(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |                 if ($aError['error_count'] == 0) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |                     $date = $dt->getTimestamp(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |         return $date; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |      * Get the array specified by path. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |      * @param string $strPath | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |      * @param array $aDefault | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |     public function getArray(string $strPath, array $aDefault = []) : array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |         $value = $this->getValue($strPath, $aDefault); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |         return is_array($value) ? $value : $aDefault; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |      * Parse the given file an add all settings to the internal configuration. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |      * Method MUST be implemented in derived classes! | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |      * @param string $strConfigFile | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |     protected function parseFile(string $strConfigFile) : array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |         trigger_error('parseFile() MUST be implemented in class ' . get_class($this) . '!', E_USER_ERROR); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |         return []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |      * Split the given path in its components. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |      * @param string $strPath | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |     protected function splitPath(string $strPath) : array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |         return explode('.', $strPath); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |      * Checks whether the passed value is a valid expression for bool 'True'. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |      * Accepted values for bool 'true' are (case insensitiv): <i>true, on, yes, 1</i> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |      * @param string $strValue | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |      * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |     protected function isTrue(string $strValue) : bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |         $strValue = strtolower($strValue); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |         return in_array($strValue, ['true', 'on', 'yes', '1']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |      * Checks whether the passed value is a valid expression for bool 'False'. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |      * Accepted values for bool 'false' are (case insensitiv): <i>false, off, no, none, 0</i> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  |      * @param string $strValue | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  |      * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |     protected function isFalse(string $strValue) : bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  |         $strValue = strtolower($strValue); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |         return in_array($strValue, ['false', 'off', 'no', 'none', '0']); | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 233 |  |  |     } | 
            
                                                        
            
                                    
            
            
                | 234 |  |  | } |