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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 | <?php namespace Cron; /** * Day of week field. Allows: * / , - ? L # * * Days of the week can be represented as a number 0-7 (0|7 = Sunday) * or as a three letter string: SUN, MON, TUE, WED, THU, FRI, SAT. * * 'L' stands for "last". It allows you to specify constructs such as * "the last Friday" of a given month. * * '#' is allowed for the day-of-week field, and must be followed by a * number between one and five. It allows you to specify constructs such as * "the second Friday" of a given month. */ class DayOfWeekField extends AbstractField { public function isSatisfiedBy(\DateTime $date , $value ) { if ( $value == '?' ) { return true; } // Convert text day of the week values to integers $value = $this ->convertLiterals( $value ); $currentYear = $date ->format( 'Y' ); $currentMonth = $date ->format( 'm' ); $lastDayOfMonth = $date ->format( 't' ); // Find out if this is the last specific weekday of the month if ( strpos ( $value , 'L' )) { $weekday = str_replace ( '7' , '0' , substr ( $value , 0, strpos ( $value , 'L' ))); $tdate = clone $date ; $tdate ->setDate( $currentYear , $currentMonth , $lastDayOfMonth ); while ( $tdate ->format( 'w' ) != $weekday ) { $tdate ->setDate( $currentYear , $currentMonth , -- $lastDayOfMonth ); } return $date ->format( 'j' ) == $lastDayOfMonth ; } // Handle # hash tokens if ( strpos ( $value , '#' )) { list( $weekday , $nth ) = explode ( '#' , $value ); // 0 and 7 are both Sunday, however 7 matches date('N') format ISO-8601 if ( $weekday === '0' ) { $weekday = 7; } // Validate the hash fields if ( $weekday < 0 || $weekday > 7) { throw new \InvalidArgumentException( "Weekday must be a value between 0 and 7. {$weekday} given" ); } if ( $nth > 5) { throw new \InvalidArgumentException( 'There are never more than 5 of a given weekday in a month' ); } // The current weekday must match the targeted weekday to proceed if ( $date ->format( 'N' ) != $weekday ) { return false; } $tdate = clone $date ; $tdate ->setDate( $currentYear , $currentMonth , 1); $dayCount = 0; $currentDay = 1; while ( $currentDay < $lastDayOfMonth + 1) { if ( $tdate ->format( 'N' ) == $weekday ) { if (++ $dayCount >= $nth ) { break ; } } $tdate ->setDate( $currentYear , $currentMonth , ++ $currentDay ); } return $date ->format( 'j' ) == $currentDay ; } // Handle day of the week values if ( strpos ( $value , '-' )) { $parts = explode ( '-' , $value ); if ( $parts [0] == '7' ) { $parts [0] = '0' ; } elseif ( $parts [1] == '0' ) { $parts [1] = '7' ; } $value = implode( '-' , $parts ); } // Test to see which Sunday to use -- 0 == 7 == Sunday $format = in_array(7, str_split ( $value )) ? 'N' : 'w' ; $fieldValue = $date ->format( $format ); return $this ->isSatisfied( $fieldValue , $value ); } public function increment(\DateTime $date , $invert = false) { if ( $invert ) { $date ->modify( '-1 day' ); $date ->setTime(23, 59, 0); } else { $date ->modify( '+1 day' ); $date ->setTime(0, 0, 0); } return $this ; } public function validate( $value ) { $value = $this ->convertLiterals( $value ); foreach ( explode ( ',' , $value ) as $expr ) { if (!preg_match( '/^(\*|[0-7](L?|#[1-5]))([\/\,\-][0-7]+)*$/' , $expr )) { return false; } } return true; } private function convertLiterals( $string ) { return str_ireplace ( array ( 'SUN' , 'MON' , 'TUE' , 'WED' , 'THU' , 'FRI' , 'SAT' ), range(0, 6), $string ); } } |