|
|
|
|
Bookmark this on Delicious
Share on Facebook
 Slashdot It!
Digg  mcal_date_compare
Compares two dates
(PHP 4)
Code Examples / Notes » mcal_date_compareasharm4
//this function compares any date to current date and returns results in form of integers.. function date_compare ( $b_year, $b_month, $b_day ) { $a_year = $today["year"]; $a_month = $today["mon"]; $a_day = $today["mday"]; $final_result = 9; //set it to random right now if($a_year >$b_year) { $final_result = 1; //the year 1 is greater then year 2 so no more check required }//year greater else if($a_year == $b_year) //the years are the same ..so check the month { if($a_month > $b_month) { $final_result = 2; //the months are greater and so no more checks needed }//greater month check else if($a_month == $b_month)//same months ..so check dates { if($a_day > $b_day) { $final_result = 3; //the days solve the problem :) } else if($a_day == $b_day) { $final_result = 4; //the dates are identical too..so date1 becomes equal to date 2 } else { $final_result = -3; //the date1 < $date 2 } }//equal month check else { $final_result = -2; }//month1 < month2 }//year same else { $final_result = -1; //the year 1 is smaller then year 2 ..hence date1 < date2 } return $final_result; } nepnep_
/* this is much a much better code */ /* a very short one and easy to understand */ /* reurns -1 if first given date is lower than the second */ /* reurns 0 if given dates are equal */ /* reurns 1 if second given date is lower than the first */ function date_compare($y1,$m1,$d1,$y2,$m2,$d2){ /* check the year */ if($y1 > $y2){ /* if $y1 is greater then therefore the first date is greater than second */ return 1; }elseif($y1 == $y2){ /* equal year, check the month */ if($m1 > $m2){ /* year is equal but the first given month is greater /* therefore the first given date is greater */ return 1; }elseif($m1 == $m2){ /* if month are also equal, check the date */ if($d1 > $d2){ return 1; }elseif($d1 == $d2){ return 0; }else{ return -1; } }else{ /* if year is equal but month is less, therefore the first given date is less */ return -1; } }else{ /* if $y1 is less than $y2 */ return -1; } } |
Change Language
mcal_append_event mcal_close mcal_create_calendar mcal_date_compare mcal_date_valid mcal_day_of_week mcal_day_of_year mcal_days_in_month mcal_delete_calendar mcal_delete_event mcal_event_add_attribute mcal_event_init mcal_event_set_alarm mcal_event_set_category mcal_event_set_class mcal_event_set_description mcal_event_set_end mcal_event_set_recur_daily mcal_event_set_recur_monthly_mday mcal_event_set_recur_monthly_wday mcal_event_set_recur_none mcal_event_set_recur_weekly mcal_event_set_recur_yearly mcal_event_set_start mcal_event_set_title mcal_expunge mcal_fetch_current_stream_event mcal_fetch_event mcal_is_leap_year mcal_list_alarms mcal_list_events mcal_next_recurrence mcal_open mcal_popen mcal_rename_calendar mcal_reopen mcal_snooze mcal_store_event mcal_time_valid mcal_week_of_year |
