Complex classes like date_Core 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 date_Core, and based on these observations, apply Extract Interface, too.
| 1 | <?php defined('SYSPATH') or die('No direct access allowed.'); |
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| 12 | class date_Core |
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| 13 | { |
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| 14 | |||
| 15 | /** |
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| 16 | * Converts a UNIX timestamp to DOS format. |
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| 17 | * |
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| 18 | * @param integer UNIX timestamp |
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| 19 | * @return integer |
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| 20 | */ |
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| 21 | public static function unix2dos($timestamp = false) |
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| 37 | |||
| 38 | /** |
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| 39 | * Converts a DOS timestamp to UNIX format. |
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| 40 | * |
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| 41 | * @param integer DOS timestamp |
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| 42 | * @return integer |
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| 43 | */ |
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| 44 | public static function dos2unix($timestamp = false) |
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| 55 | |||
| 56 | /** |
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| 57 | * Returns the offset (in seconds) between two time zones. |
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| 58 | * @see http://php.net/timezones |
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| 59 | * |
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| 60 | * @param string timezone that to find the offset of |
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| 61 | * @param string|boolean timezone used as the baseline |
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| 62 | * @return integer |
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| 63 | */ |
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| 64 | public static function offset($remote, $local = true) |
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| 90 | |||
| 91 | /** |
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| 92 | * Number of seconds in a minute, incrementing by a step. |
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| 93 | * |
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| 94 | * @param integer amount to increment each step by, 1 to 30 |
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| 95 | * @param integer start value |
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| 96 | * @param integer end value |
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| 97 | * @return array A mirrored (foo => foo) array from 1-60. |
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| 98 | */ |
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| 99 | public static function seconds($step = 1, $start = 0, $end = 60) |
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| 112 | |||
| 113 | /** |
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| 114 | * Number of minutes in an hour, incrementing by a step. |
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| 115 | * |
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| 116 | * @param integer amount to increment each step by, 1 to 30 |
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| 117 | * @return array A mirrored (foo => foo) array from 1-60. |
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| 118 | */ |
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| 119 | public static function minutes($step = 5) |
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| 127 | |||
| 128 | /** |
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| 129 | * Number of hours in a day. |
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| 130 | * |
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| 131 | * @param integer amount to increment each step by |
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| 132 | * @param boolean use 24-hour time |
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| 133 | * @param integer the hour to start at |
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| 134 | * @return array A mirrored (foo => foo) array from start-12 or start-23. |
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| 135 | */ |
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| 136 | public static function hours($step = 1, $long = false, $start = null) |
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| 159 | |||
| 160 | /** |
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| 161 | * Returns AM or PM, based on a given hour. |
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| 162 | * |
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| 163 | * @param integer number of the hour |
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| 164 | * @return string |
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| 165 | */ |
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| 166 | public static function ampm($hour) |
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| 173 | |||
| 174 | /** |
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| 175 | * Adjusts a non-24-hour number into a 24-hour number. |
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| 176 | * |
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| 177 | * @param integer hour to adjust |
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| 178 | * @param string AM or PM |
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| 179 | * @return string |
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| 180 | */ |
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| 181 | public static function adjust($hour, $ampm) |
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| 201 | |||
| 202 | /** |
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| 203 | * Number of days in month. |
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| 204 | * |
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| 205 | * @param integer number of month |
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| 206 | * @param integer number of year to check month, defaults to the current year |
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| 207 | * @return array A mirrored (foo => foo) array of the days. |
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| 208 | */ |
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| 209 | public static function days($month, $year = false) |
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| 234 | |||
| 235 | /** |
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| 236 | * Number of months in a year |
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| 237 | * |
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| 238 | * @return array A mirrored (foo => foo) array from 1-12. |
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| 239 | */ |
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| 240 | public static function months() |
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| 244 | |||
| 245 | /** |
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| 246 | * Returns an array of years between a starting and ending year. |
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| 247 | * Uses the current year +/- 5 as the max/min. |
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| 248 | * |
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| 249 | * @param integer starting year |
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| 250 | * @param integer ending year |
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| 251 | * @return array |
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| 252 | */ |
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| 253 | public static function years($start = false, $end = false) |
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| 270 | |||
| 271 | /** |
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| 272 | * Returns time difference between two timestamps, in human readable format. |
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| 273 | * |
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| 274 | * @param integer timestamp |
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| 275 | * @param integer timestamp, defaults to the current time |
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| 276 | * @param string formatting string |
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| 277 | * @return string|array |
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| 278 | */ |
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| 279 | public static function timespan($time1, $time2 = null, $output = 'years,months,weeks,days,hours,minutes,seconds') |
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| 351 | |||
| 352 | /** |
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| 353 | * Returns time difference between two timestamps, in the format: |
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| 354 | * N year, N months, N weeks, N days, N hours, N minutes, and N seconds ago |
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| 355 | * |
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| 356 | * @param integer timestamp |
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| 357 | * @param integer timestamp, defaults to the current time |
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| 358 | * @param string formatting string |
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| 359 | * @return string |
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| 360 | */ |
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| 361 | public static function timespan_string($time1, $time2 = null, $output = 'years,months,weeks,days,hours,minutes,seconds') |
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| 393 | } // End date |
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| 394 |
This check compares the return type specified in the
@returnannotation of a function or method doc comment with the types returned by the function and raises an issue if they mismatch.