mambax7 /
extcal
Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like Calendar often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Calendar, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 122 | class Calendar |
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| 123 | { |
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| 124 | /** |
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| 125 | * Instance of class implementing calendar engine interface. |
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| 126 | * |
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| 127 | * @var object |
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| 128 | */ |
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| 129 | public $cE; |
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| 130 | |||
| 131 | /** |
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| 132 | * Instance of Calendar_Validator (lazy initialized when isValid() or |
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| 133 | * getValidor() is called. |
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| 134 | * |
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| 135 | * @var Calendar_Validator |
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| 136 | */ |
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| 137 | public $validator; |
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| 138 | |||
| 139 | /** |
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| 140 | * Year for this calendar object e.g. 2003. |
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| 141 | * |
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| 142 | * @var int |
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| 143 | */ |
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| 144 | public $year; |
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| 145 | |||
| 146 | /** |
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| 147 | * Month for this calendar object e.g. 9. |
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| 148 | * |
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| 149 | * @var int |
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| 150 | */ |
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| 151 | public $month; |
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| 152 | |||
| 153 | /** |
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| 154 | * Day of month for this calendar object e.g. 23. |
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| 155 | * |
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| 156 | * @var int |
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| 157 | */ |
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| 158 | public $day; |
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| 159 | |||
| 160 | /** |
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| 161 | * Hour of day for this calendar object e.g. 13. |
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| 162 | * |
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| 163 | * @var int |
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| 164 | */ |
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| 165 | public $hour; |
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| 166 | |||
| 167 | /** |
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| 168 | * Minute of hour this calendar object e.g. 46. |
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| 169 | * |
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| 170 | * @var int |
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| 171 | */ |
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| 172 | public $minute; |
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| 173 | |||
| 174 | /** |
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| 175 | * Second of minute this calendar object e.g. 34. |
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| 176 | * |
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| 177 | * @var int |
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| 178 | */ |
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| 179 | public $second; |
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| 180 | |||
| 181 | /** |
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| 182 | * Marks this calendar object as selected (e.g. 'today'). |
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| 183 | * |
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| 184 | * @var bool |
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| 185 | */ |
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| 186 | public $selected = false; |
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| 187 | |||
| 188 | /** |
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| 189 | * Collection of child calendar objects created from subclasses |
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| 190 | * of Calendar. Type depends on the object which created them. |
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| 191 | * |
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| 192 | * @var array |
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| 193 | */ |
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| 194 | public $children = []; |
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| 195 | |||
| 196 | /** |
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| 197 | * Constructs the Calendar. |
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| 198 | * |
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| 199 | * @param int $y year |
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| 200 | * @param int $m month |
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| 201 | * @param int $d day |
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| 202 | * @param int $h hour |
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| 203 | * @param int $i minute |
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| 204 | * @param int $s second |
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| 205 | */ |
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| 206 | public function __construct($y = 2000, $m = 1, $d = 1, $h = 0, $i = 0, $s = 0) |
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| 207 | { |
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| 208 | static $cE = null; |
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| 209 | if (!isset($cE)) { |
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| 210 | $cE = Calendar_Engine_Factory::getEngine(); |
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| 211 | } |
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| 212 | $this->cE =& $cE; |
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| 213 | $this->year = (int)$y; |
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| 214 | $this->month = (int)$m; |
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| 215 | $this->day = (int)$d; |
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| 216 | $this->hour = (int)$h; |
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| 217 | $this->minute = (int)$i; |
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| 218 | $this->second = (int)$s; |
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| 219 | } |
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| 220 | |||
| 221 | /** |
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| 222 | * Defines the calendar by a timestamp (Unix or ISO-8601), replacing values |
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| 223 | * passed to the constructor. |
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| 224 | * |
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| 225 | * @param int|string $ts Unix or ISO-8601 timestamp |
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| 226 | */ |
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| 227 | public function setTimestamp($ts) |
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| 228 | { |
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| 229 | $this->year = $this->cE->stampToYear($ts); |
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| 230 | $this->month = $this->cE->stampToMonth($ts); |
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| 231 | $this->day = $this->cE->stampToDay($ts); |
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| 232 | $this->hour = $this->cE->stampToHour($ts); |
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| 233 | $this->minute = $this->cE->stampToMinute($ts); |
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| 234 | $this->second = $this->cE->stampToSecond($ts); |
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| 235 | } |
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| 236 | |||
| 237 | /** |
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| 238 | * Returns a timestamp from the current date / time values. Format of |
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| 239 | * timestamp depends on Calendar_Engine implementation being used. |
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| 240 | * |
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| 241 | * @return int|string timestamp |
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| 242 | */ |
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| 243 | public function getTimestamp() |
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| 244 | { |
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| 245 | return $this->cE->dateToStamp($this->year, $this->month, $this->day, $this->hour, $this->minute, $this->second); |
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| 246 | } |
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| 247 | |||
| 248 | /** |
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| 249 | * Defines calendar object as selected (e.g. for today). |
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| 250 | * |
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| 251 | * @param bool $state whether Calendar subclass |
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| 252 | */ |
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| 253 | public function setSelected($state = true) |
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| 254 | { |
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| 255 | $this->selected = $state; |
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| 256 | } |
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| 257 | |||
| 258 | /** |
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| 259 | * True if the calendar subclass object is selected (e.g. today). |
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| 260 | * |
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| 261 | * @return bool |
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| 262 | */ |
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| 263 | public function isSelected() |
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| 264 | { |
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| 265 | return $this->selected; |
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| 266 | } |
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| 267 | |||
| 268 | /** |
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| 269 | * Checks if the current Calendar object is today's date. |
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| 270 | * |
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| 271 | * @return bool |
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| 272 | */ |
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| 273 | public function isToday() |
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| 274 | { |
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| 275 | return $this->cE->isToday($this->getTimestamp()); |
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| 276 | } |
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| 277 | |||
| 278 | /** |
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| 279 | * Adjusts the date (helper method). |
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| 280 | */ |
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| 281 | public function adjust() |
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| 282 | { |
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| 283 | $stamp = $this->getTimestamp(); |
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| 284 | $this->year = $this->cE->stampToYear($stamp); |
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| 285 | $this->month = $this->cE->stampToMonth($stamp); |
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| 286 | $this->day = $this->cE->stampToDay($stamp); |
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| 287 | $this->hour = $this->cE->stampToHour($stamp); |
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| 288 | $this->minute = $this->cE->stampToMinute($stamp); |
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| 289 | $this->second = $this->cE->stampToSecond($stamp); |
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| 290 | } |
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| 291 | |||
| 292 | /** |
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| 293 | * Returns the date as an associative array (helper method). |
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| 294 | * |
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| 295 | * @param mixed $stamp timestamp (leave empty for current timestamp) |
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| 296 | * |
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| 297 | * @return array |
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| 298 | */ |
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| 299 | public function toArray($stamp = null) |
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| 300 | { |
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| 301 | if (is_null($stamp)) { |
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| 302 | $stamp = $this->getTimestamp(); |
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| 303 | } |
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| 304 | |||
| 305 | return [ |
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| 306 | 'year' => $this->cE->stampToYear($stamp), |
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| 307 | 'month' => $this->cE->stampToMonth($stamp), |
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| 308 | 'day' => $this->cE->stampToDay($stamp), |
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| 309 | 'hour' => $this->cE->stampToHour($stamp), |
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| 310 | 'minute' => $this->cE->stampToMinute($stamp), |
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| 311 | 'second' => $this->cE->stampToSecond($stamp), |
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| 312 | ]; |
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| 313 | } |
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| 314 | |||
| 315 | /** |
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| 316 | * Returns the value as an associative array (helper method). |
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| 317 | * |
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| 318 | * @param string $returnType type of date object that return value represents |
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| 319 | * @param string $format ['int' | 'array' | 'timestamp' | 'object'] |
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| 320 | * @param mixed $stamp timestamp (depending on Calendar engine being used) |
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| 321 | * @param int $default default value (i.e. give me the answer quick) |
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| 322 | * |
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| 323 | * @return mixed |
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| 324 | */ |
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| 325 | public function returnValue($returnType, $format, $stamp, $default) |
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| 326 | { |
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| 327 | switch (strtolower($format)) { |
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| 328 | case 'int': |
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| 329 | return $default; |
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| 330 | case 'array': |
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| 331 | return $this->toArray($stamp); |
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| 332 | break; |
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| 333 | case 'object': |
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| 334 | require_once CALENDAR_ROOT . 'Factory.php'; |
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| 335 | |||
| 336 | return Calendar_Factory::createByTimestamp($returnType, $stamp); |
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| 337 | break; |
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| 338 | case 'timestamp': |
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| 339 | default: |
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| 340 | return $stamp; |
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| 341 | break; |
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| 342 | } |
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| 343 | } |
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| 344 | |||
| 345 | /** |
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| 346 | * Abstract method for building the children of a calendar object. |
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| 347 | * Implemented by Calendar subclasses. |
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| 348 | * |
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| 349 | * @param array $sDates array containing Calendar objects to select (optional) |
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| 350 | * |
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| 351 | * @return bool |
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| 352 | * @abstract |
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| 353 | */ |
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| 354 | public function build($sDates = []) |
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| 355 | { |
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| 356 | require_once __DIR__ . '/PEAR.php'; |
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| 357 | PEAR::raiseError('Calendar::build is abstract', null, PEAR_ERROR_TRIGGER, E_USER_NOTICE, 'Calendar::build()'); |
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| 358 | |||
| 359 | return false; |
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| 360 | } |
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| 361 | |||
| 362 | /** |
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| 363 | * Abstract method for selected data objects called from build. |
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| 364 | * |
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| 365 | * @param array $sDates array of Calendar objects to select |
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| 366 | * |
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| 367 | * @return bool |
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| 368 | * @abstract |
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| 369 | */ |
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| 370 | public function setSelection($sDates) |
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| 371 | { |
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| 372 | require_once __DIR__ . '/PEAR.php'; |
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| 373 | PEAR::raiseError('Calendar::setSelection is abstract', null, PEAR_ERROR_TRIGGER, E_USER_NOTICE, 'Calendar::setSelection()'); |
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| 374 | |||
| 375 | return false; |
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| 376 | } |
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| 377 | |||
| 378 | /** |
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| 379 | * Iterator method for fetching child Calendar subclass objects |
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| 380 | * (e.g. a minute from an hour object). On reaching the end of |
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| 381 | * the collection, returns false and resets the collection for |
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| 382 | * further iteratations. |
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| 383 | * |
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| 384 | * @return mixed either an object subclass of Calendar or false |
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| 385 | */ |
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| 386 | public function fetch() |
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| 387 | { |
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| 388 | $child = each($this->children); |
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| 389 | if ($child) { |
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| 390 | return $child['value']; |
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| 391 | } else { |
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| 392 | reset($this->children); |
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| 393 | |||
| 394 | return false; |
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| 395 | } |
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| 396 | } |
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| 397 | |||
| 398 | /** |
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| 399 | * Fetches all child from the current collection of children. |
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| 400 | * |
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| 401 | * @return array |
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| 402 | */ |
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| 403 | public function fetchAll() |
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| 404 | { |
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| 405 | return $this->children; |
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| 406 | } |
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| 407 | |||
| 408 | /** |
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| 409 | * Get the number Calendar subclass objects stored in the internal collection. |
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| 410 | * |
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| 411 | * @return int |
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| 412 | */ |
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| 413 | public function size() |
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| 414 | { |
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| 415 | return count($this->children); |
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| 416 | } |
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| 417 | |||
| 418 | /** |
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| 419 | * Determine whether this date is valid, with the bounds determined by |
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| 420 | * the Calendar_Engine. The call is passed on to Calendar_Validator::isValid. |
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| 421 | * |
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| 422 | * @return bool |
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| 423 | */ |
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| 424 | public function isValid() |
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| 425 | { |
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| 426 | $validator = $this->getValidator(); |
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| 427 | |||
| 428 | return $validator->isValid(); |
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| 429 | } |
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| 430 | |||
| 431 | /** |
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| 432 | * Returns an instance of Calendar_Validator. |
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| 433 | * |
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| 434 | * @return Calendar_Validator |
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| 435 | */ |
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| 436 | public function &getValidator() |
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| 444 | } |
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| 445 | |||
| 446 | /** |
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| 447 | * Returns a reference to the current Calendar_Engine being used. Useful |
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| 448 | * for Calendar_Table_Helper and Calendar_Validator. |
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| 449 | * |
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| 450 | * @return object implementing Calendar_Engine_Inteface |
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| 451 | */ |
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| 452 | public function &getEngine() |
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| 453 | { |
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| 454 | return $this->cE; |
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| 455 | } |
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| 456 | |||
| 457 | /** |
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| 458 | * Set the CALENDAR_FIRST_DAY_OF_WEEK constant to the $firstDay value |
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| 459 | * if the constant is not set yet. |
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| 460 | * |
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| 461 | * @param int $firstDay first day of the week (0=sunday, 1=monday, ...) |
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| 462 | * |
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| 463 | * @return int |
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| 464 | * |
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| 465 | * @throws E_USER_WARNING this method throws a WARNING if the |
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| 466 | * CALENDAR_FIRST_DAY_OF_WEEK constant is already defined and |
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| 467 | * the $firstDay parameter is set to a different value |
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| 468 | */ |
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| 469 | public function defineFirstDayOfWeek($firstDay = null) |
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| 470 | { |
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| 471 | if (defined('CALENDAR_FIRST_DAY_OF_WEEK')) { |
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| 472 | if ((CALENDAR_FIRST_DAY_OF_WEEK != $firstDay) && !is_null($firstDay)) { |
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| 473 | $msg = 'CALENDAR_FIRST_DAY_OF_WEEK constant already defined.' . ' The $firstDay parameter will be ignored.'; |
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| 474 | trigger_error($msg, E_USER_WARNING); |
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| 475 | } |
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| 476 | |||
| 477 | return CALENDAR_FIRST_DAY_OF_WEEK; |
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| 478 | } |
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| 479 | if (is_null($firstDay)) { |
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| 480 | $firstDay = $this->cE->getFirstDayOfWeek($this->thisYear(), $this->thisMonth(), $this->thisDay()); |
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| 481 | } |
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| 482 | define('CALENDAR_FIRST_DAY_OF_WEEK', $firstDay); |
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| 483 | |||
| 484 | return CALENDAR_FIRST_DAY_OF_WEEK; |
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| 485 | } |
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| 486 | |||
| 487 | /** |
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| 488 | * Returns the value for the previous year. |
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| 489 | * |
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| 490 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
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| 491 | * |
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| 492 | * @return int e.g. 2002 or timestamp |
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| 493 | */ |
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| 494 | public function prevYear($format = 'int') |
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| 495 | { |
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| 496 | $ts = $this->cE->dateToStamp($this->year - 1, 1, 1, 0, 0, 0); |
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| 497 | |||
| 498 | return $this->returnValue('Year', $format, $ts, $this->year - 1); |
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| 499 | } |
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| 500 | |||
| 501 | /** |
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| 502 | * Returns the value for this year. |
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| 503 | * |
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| 504 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
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| 505 | * |
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| 506 | * @return int e.g. 2003 or timestamp |
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| 507 | */ |
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| 508 | public function thisYear($format = 'int') |
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| 509 | { |
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| 510 | $ts = $this->cE->dateToStamp($this->year, 1, 1, 0, 0, 0); |
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| 511 | |||
| 512 | return $this->returnValue('Year', $format, $ts, $this->year); |
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| 513 | } |
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| 514 | |||
| 515 | /** |
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| 516 | * Returns the value for next year. |
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| 517 | * |
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| 518 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
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| 519 | * |
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| 520 | * @return int e.g. 2004 or timestamp |
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| 521 | */ |
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| 522 | public function nextYear($format = 'int') |
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| 527 | } |
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| 528 | |||
| 529 | /** |
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| 530 | * Returns the value for the previous month. |
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| 531 | * |
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| 532 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
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| 533 | * |
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| 534 | * @return int e.g. 4 or Unix timestamp |
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| 535 | */ |
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| 536 | public function prevMonth($format = 'int') |
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| 537 | { |
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| 538 | $ts = $this->cE->dateToStamp($this->year, $this->month - 1, 1, 0, 0, 0); |
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| 539 | |||
| 540 | return $this->returnValue('Month', $format, $ts, $this->cE->stampToMonth($ts)); |
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| 541 | } |
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| 542 | |||
| 543 | /** |
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| 544 | * Returns the value for this month. |
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| 545 | * |
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| 546 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
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| 547 | * |
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| 548 | * @return int e.g. 5 or timestamp |
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| 549 | */ |
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| 550 | public function thisMonth($format = 'int') |
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| 551 | { |
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| 552 | $ts = $this->cE->dateToStamp($this->year, $this->month, 1, 0, 0, 0); |
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| 553 | |||
| 554 | return $this->returnValue('Month', $format, $ts, $this->month); |
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| 555 | } |
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| 556 | |||
| 557 | /** |
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| 558 | * Returns the value for next month. |
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| 559 | * |
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| 560 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
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| 561 | * |
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| 562 | * @return int e.g. 6 or timestamp |
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| 563 | */ |
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| 564 | public function nextMonth($format = 'int') |
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| 565 | { |
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| 566 | $ts = $this->cE->dateToStamp($this->year, $this->month + 1, 1, 0, 0, 0); |
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| 567 | |||
| 568 | return $this->returnValue('Month', $format, $ts, $this->cE->stampToMonth($ts)); |
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| 569 | } |
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| 570 | |||
| 571 | /** |
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| 572 | * Returns the value for the previous day. |
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| 573 | * |
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| 574 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
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| 575 | * |
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| 576 | * @return int e.g. 10 or timestamp |
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| 577 | */ |
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| 578 | public function prevDay($format = 'int') |
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| 579 | { |
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| 580 | $ts = $this->cE->dateToStamp($this->year, $this->month, $this->day - 1, 0, 0, 0); |
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| 581 | |||
| 582 | return $this->returnValue('Day', $format, $ts, $this->cE->stampToDay($ts)); |
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| 583 | } |
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| 584 | |||
| 585 | /** |
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| 586 | * Returns the value for this day. |
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| 587 | * |
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| 588 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
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| 589 | * |
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| 590 | * @return int e.g. 11 or timestamp |
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| 591 | */ |
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| 592 | public function thisDay($format = 'int') |
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| 593 | { |
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| 594 | $ts = $this->cE->dateToStamp($this->year, $this->month, $this->day, 0, 0, 0); |
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| 595 | |||
| 596 | return $this->returnValue('Day', $format, $ts, $this->day); |
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| 597 | } |
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| 598 | |||
| 599 | /** |
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| 600 | * Returns the value for the next day. |
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| 601 | * |
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| 602 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
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| 603 | * |
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| 604 | * @return int e.g. 12 or timestamp |
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| 605 | */ |
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| 606 | public function nextDay($format = 'int') |
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| 607 | { |
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| 608 | $ts = $this->cE->dateToStamp($this->year, $this->month, $this->day + 1, 0, 0, 0); |
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| 609 | |||
| 610 | return $this->returnValue('Day', $format, $ts, $this->cE->stampToDay($ts)); |
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| 611 | } |
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| 612 | |||
| 613 | /** |
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| 614 | * Returns the value for the previous hour. |
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| 615 | * |
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| 616 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
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| 617 | * |
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| 618 | * @return int e.g. 13 or timestamp |
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| 619 | */ |
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| 620 | public function prevHour($format = 'int') |
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| 621 | { |
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| 622 | $ts = $this->cE->dateToStamp($this->year, $this->month, $this->day, $this->hour - 1, 0, 0); |
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| 623 | |||
| 624 | return $this->returnValue('Hour', $format, $ts, $this->cE->stampToHour($ts)); |
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| 625 | } |
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| 626 | |||
| 627 | /** |
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| 628 | * Returns the value for this hour. |
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| 629 | * |
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| 630 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
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| 631 | * |
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| 632 | * @return int e.g. 14 or timestamp |
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| 633 | */ |
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| 634 | public function thisHour($format = 'int') |
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| 635 | { |
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| 636 | $ts = $this->cE->dateToStamp($this->year, $this->month, $this->day, $this->hour, 0, 0); |
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| 637 | |||
| 638 | return $this->returnValue('Hour', $format, $ts, $this->hour); |
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| 639 | } |
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| 640 | |||
| 641 | /** |
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| 642 | * Returns the value for the next hour. |
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| 643 | * |
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| 644 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
||
| 645 | * |
||
| 646 | * @return int e.g. 14 or timestamp |
||
| 647 | */ |
||
| 648 | public function nextHour($format = 'int') |
||
| 649 | { |
||
| 650 | $ts = $this->cE->dateToStamp($this->year, $this->month, $this->day, $this->hour + 1, 0, 0); |
||
| 651 | |||
| 652 | return $this->returnValue('Hour', $format, $ts, $this->cE->stampToHour($ts)); |
||
| 653 | } |
||
| 654 | |||
| 655 | /** |
||
| 656 | * Returns the value for the previous minute. |
||
| 657 | * |
||
| 658 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
||
| 659 | * |
||
| 660 | * @return int e.g. 23 or timestamp |
||
| 661 | */ |
||
| 662 | public function prevMinute($format = 'int') |
||
| 667 | } |
||
| 668 | |||
| 669 | /** |
||
| 670 | * Returns the value for this minute. |
||
| 671 | * |
||
| 672 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
||
| 673 | * |
||
| 674 | * @return int e.g. 24 or timestamp |
||
| 675 | */ |
||
| 676 | public function thisMinute($format = 'int') |
||
| 681 | } |
||
| 682 | |||
| 683 | /** |
||
| 684 | * Returns the value for the next minute. |
||
| 685 | * |
||
| 686 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
||
| 687 | * |
||
| 688 | * @return int e.g. 25 or timestamp |
||
| 689 | */ |
||
| 690 | public function nextMinute($format = 'int') |
||
| 691 | { |
||
| 692 | $ts = $this->cE->dateToStamp($this->year, $this->month, $this->day, $this->hour, $this->minute + 1, 0); |
||
| 693 | |||
| 694 | return $this->returnValue('Minute', $format, $ts, $this->cE->stampToMinute($ts)); |
||
| 695 | } |
||
| 696 | |||
| 697 | /** |
||
| 698 | * Returns the value for the previous second. |
||
| 699 | * |
||
| 700 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
||
| 701 | * |
||
| 702 | * @return int e.g. 43 or timestamp |
||
| 703 | */ |
||
| 704 | public function prevSecond($format = 'int') |
||
| 705 | { |
||
| 706 | $ts = $this->cE->dateToStamp($this->year, $this->month, $this->day, $this->hour, $this->minute, $this->second - 1); |
||
| 707 | |||
| 708 | return $this->returnValue('Second', $format, $ts, $this->cE->stampToSecond($ts)); |
||
| 709 | } |
||
| 710 | |||
| 711 | /** |
||
| 712 | * Returns the value for this second. |
||
| 713 | * |
||
| 714 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
||
| 715 | * |
||
| 716 | * @return int e.g. 44 or timestamp |
||
| 717 | */ |
||
| 718 | public function thisSecond($format = 'int') |
||
| 723 | } |
||
| 724 | |||
| 725 | /** |
||
| 726 | * Returns the value for the next second. |
||
| 727 | * |
||
| 728 | * @param string $format return value format ['int'|'timestamp'|'object'|'array'] |
||
| 729 | * |
||
| 730 | * @return int e.g. 45 or timestamp |
||
| 731 | */ |
||
| 732 | public function nextSecond($format = 'int') |
||
| 737 | } |
||
| 738 | } |
||
| 739 |
Loading history...
You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.