PHP Classes

File: dataclass.php

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File: dataclass.php
Role: Class source
Content type: text/plain
Description: DATE class code
Class: date
Perform operations with dates
Author: By
Last change: refined code
Date: 15 years ago
Size: 22,405 bytes
 

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<?php # date class # coded by Alessandro Rosa # e-mail : zandor_zz@yahoo.it # site : http://malilla.supereva.it # last update and bug fixed at : Jan 24th 2007 # Copyright (C) 2007 Alessandro Rosa # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software Foundation, # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # Compiled with PHP 4.4.0 $lastday_months = array( 1 => 31, 2 => 28, 3 => 31, 4 => 30, 5 => 31, 6 => 30, 7 => 31, 8 => 31, 9 => 30, 10 => 31, 11 => 30, 12 => 31 ) ; $lastday_months2 = array( 1 => 31, 2 => 29, 3 => 31, 4 => 30, 5 => 31, 6 => 30, 7 => 31, 8 => 31, 9 => 30, 10 => 31, 11 => 30, 12 => 31 ) ; // fill this array with the months name in your output language $name_months = array( "01" => Gennaio, "02" => Febbraio, "03" => Marzo, "04" => Aprile, "05" => Maggio, "06" => Giugno, "07" => Luglio, "08" => Agosto, "09" => Settembre, "10" => Ottobre, "11" => Novembre, "12" => Dicembre ) ; // fill this array with the week days name in your output language $name_days = array( "Domenica", "Lunedý", "Martedý", "Mercoledý", "Giovedý", "Venerdý", "Sabato" ) ; $short_name_days = array( "D", "L", "M", "M", "G", "V", "S" ) ; class date { function date() { $this->start_date = 0 ; } function isbisextile( $year ) { if ( ( $year % 4 == 0 ) && ( $year % 100 != 0 ) && ( $year % 1000 != 0 ) ) return true ; else if ( $year % 400 == 0 ) return true ; else if ( ( $year % 1000 == 0 ) && ( $year % 4000 != 0 ) ) return true ; else return false ; } function set_start_date( $d, $m, $y ) { $this->start_day = $d + 0; // + 0 forces each entry string to turn into a number $this->start_month = $m + 0; $this->start_year = $y + 0; $this->days_of_the_year = $this->isbisextile( $y ) ? 366 : 365 ; } function daysfrombegin() { $tmp_days = 0 ; $a = array(); $a = $this->isbisextile( $this->start_year ) ? $GLOBALS['lastday_months2'] : $GLOBALS['lastday_months'] ; $tmp_days += $this->start_day ; for ( $i = 1; $i <= ( intval( $this->start_month ) - 1 ); $i++ ) $tmp_days += $a{$i} ; return --$tmp_days ; } function daystoend() { $tmp_days = 0 ; $a = array(); $a = $this->isbisextile( $this->start_year ) ? $GLOBALS['lastday_months2'] : $GLOBALS['lastday_months'] ; $m = $this->start_month ; // zero-based index of the input month $tmp_days += ( $a{$m} - $this->start_day ) ; for ( $i = ( intval( $this->start_month ) + 1 ) ; $i <= 12; $i++ ) $tmp_days += $a{$i} ; return $tmp_days ; } function to_months( $months ) { $tmp_d = $this->start_day ; $tmp_m = $this->start_month ; $tmp_y = $this->start_year ; $y = floor( abs( $months ) / 12.0 ) ; $m = $months % 12 ; $tmp_m += $m ; $tmp_y += $y ; $this->end_day = ( intval( $tmp_d ) < 10 ) ? "0$tmp_d" : $tmp_d ; $this->end_month = ( intval( $tmp_m ) < 10 ) ? "0$tmp_m" : $tmp_m ; $this->end_year = ( intval( $tmp_y ) < 10 ) ? "0$tmp_y" : $tmp_y ; } function to_years( $years ) { $tmp_d = $this->start_day ; $tmp_m = $this->start_month ; $tmp_y = $this->start_year ; $tmp_y += $years ; $this->end_day = ( intval( $tmp_d ) < 10 ) ? "0$tmp_d" : $tmp_d ; $this->end_month = ( intval( $tmp_m ) < 10 ) ? "0$tmp_m" : $tmp_m ; $this->end_year = ( intval( $tmp_y ) < 10 ) ? "0$tmp_y" : $tmp_y ; } function to_date( $days ) { $tmp_d = $this->start_day ; $tmp_m = $this->start_month ; $tmp_y = $this->start_year ; $unit_d = ( intval( $days < 0 ) ) ? -1 : +1; $unit_m = ( intval( $days < 0 ) ) ? -1 : +1; $unit_y = ( intval( $days < 0 ) ) ? -1 : +1; $a = array(); $a = $this->isbisextile( $tmp_y ) ? $GLOBALS['lastday_months2'] : $GLOBALS['lastday_months'] ; $days = abs( $days ); while( intval( $days ) > 0 ) { $tmp_d += $unit_d ; $days-- ; if ( intval( $tmp_d ) == 0 ) // when $unit_d is -1 { $tmp_m-- ; if ( intval( $tmp_m ) == 0 ) { $tmp_m = 12 ; $tmp_y-- ; $a = $this->isbisextile( $tmp_y ) ? $GLOBALS['lastday_months2'] : $GLOBALS['lastday_months'] ; } while( intval( $days ) > $a{ intval( $tmp_m ) } ) { $days -= $a{ intval( $tmp_m ) } ; $tmp_m-- ; if ( intval( $tmp_m ) == 0 ) { $tmp_m = 12 ; $tmp_y-- ; $a = $this->isbisextile( $tmp_y ) ? $GLOBALS['lastday_months2'] : $GLOBALS['lastday_months'] ; } } $tmp_d = $a{ intval( $tmp_m ) } ; } else if ( $tmp_d == ( $a{ intval( $tmp_m ) } + 1 ) ) // when $unit_d is +1 { // first we check whether the next month is January, // therefore the year is incremented by one and checked if bisextile. if ( ( intval( $tmp_m ) + 1 ) == 13 ) { $tmp_m = 1 ; $tmp_y++ ; $a = $this->isbisextile( $tmp_y ) ? $GLOBALS['lastday_months2'] : $GLOBALS['lastday_months'] ; } else $tmp_m++ ; while( intval( $days ) > $a{ intval( $tmp_m ) } ) // looks at the days of the next month { $tmp_d = $a{ intval( $tmp_m ) } ; $days -= $tmp_d ; if ( ( intval( $tmp_m ) + 1 ) == 13 ) { $tmp_m = 1 ; $tmp_y++ ; $a = $this->isbisextile( $tmp_y ) ? $GLOBALS['lastday_months2'] : $GLOBALS['lastday_months'] ; } else $tmp_m++ ; } $tmp_d = 1 ; } ////////////////////////////////////////////// } $this->end_day = ( intval( $tmp_d ) < 10 ) ? "0$tmp_d" : $tmp_d ; $this->end_month = ( intval( $tmp_m ) < 10 ) ? "0$tmp_m" : $tmp_m ; $this->end_year = ( intval( $tmp_y ) < 10 ) ? "0$tmp_y" : $tmp_y ; } function daysbetween( $sd, $sm, $sy, $ed, $em, $ey, &$bSwap ) { $bSwap = false ; if ( intval( $ey ) < intval( $sy ) ) { $this->swap( $sd, $ed ) ; $this->swap( $sm, $em ) ; $this->swap( $sy, $ey ) ; $bSwap = true ; } else if ( intval( $em ) < intval( $sm ) && intval( $ey ) == intval( $sy ) ) { $this->swap( $sd, $ed ) ; $this->swap( $sm, $em ) ; $this->swap( $sy, $ey ) ; $bSwap = true ; } else if ( intval( $ed ) < intval( $sd ) && intval( $em ) == intval( $sm ) && intval( $ey ) == intval( $sy ) ) { $this->swap( $sd, $ed ) ; $this->swap( $sm, $em ) ; $this->swap( $sy, $ey ) ; $bSwap = true ; } $days = 0; $tmp_d = $sd ; $tmp_m = $sm ; $tmp_y = $sy ; $a = array(); $a = $this->isbisextile( $tmp_y ) ? $GLOBALS['lastday_months2'] : $GLOBALS['lastday_months'] ; while( true ) { if ( $tmp_d == $ed && $tmp_m == $em && $tmp_y == $ey ) break; if ( intval( $tmp_d ) == ( $a{ intval( $tmp_m ) } ) ) { $tmp_d = 1 ; $tmp_m++ ; if ( intval( $tmp_m ) == 13 ) { $tmp_m = 1 ; $tmp_y++ ; $a = $this->isbisextile( $tmp_y ) ? $GLOBALS['lastday_months2'] : $GLOBALS['lastday_months'] ; } } $tmp_d++ ; ////////////////////////////////////////////// $days++ ; // loops to exit } return ( $bSwap ) ? "-$days" : $days ; } function timebetween( $sh, $sm, $ss, $eh, $em, $es, &$bOneDayOut ) { $a = array() ; if ( ( $ss < 0 || $ss > 59 ) || ( $eh < 0 || $eh > 59 ) || ( $sm < 0 || $sm > 59 ) || ( $em < 0 || $em > 59 ) || ( $sh < 0 || $sh > 23 ) || ( $eh < 0 || $eh > 23 ) ) { $a['seconds'] = -1 ; $a['minutes'] = -1 ; $a['hours'] = -1 ; return $a ; } if ( $ss > $es || $sm > $em || $sh > $eh ) { $bOneDayOut = true ; $this->swap( $ss, $es ); $this->swap( $sm, $em ); $this->swap( $sh, $eh ); } $seconds = $ss - $es ; $minutes = $sm - $em ; $hours = $sh - $eh ; $bSECS = false ; $bMINS = false ; $bHOURS = false ; if ( $seconds < 0 ) { $seconds = 60 - abs( $seconds ) ; $bSECS = true ; } if ( $minutes < 0 ) { $minutes = 60 - abs( $minutes ) ; $bMINS = true ; } if ( $hours < 0 ) { $hours = 24 - abs( $hours ) ; $bHOURS = true ; } if ( $bSECS ) $minutes-- ; if ( $bMINS ) $hours-- ; $a['seconds'] = $seconds ; $a['minutes'] = $minutes ; $a['hours'] = $hours ; return $a ; } function to_time( $sHOURS, $sMINUTES, $sSECONDS, $withinHOURS, $withinMINUTES, $withinSECONDS ) { if ( !( $this->check_time( $sHOURS, $sMINUTES, $sSECONDS ) ) ) return false ; if ( $withinHOURS < 0 || $withinMINUTES < 0 || $withinSECONDS < 0 ) { $withinHOURS = 0 - abs( $withinHOURS ); $withinMINUTES = 0 - abs( $withinMINUTES ); $withinSECONDS = 0- abs( $withinSECONDS ); } $sSECONDS += $withinSECONDS ; $addONminutes = floor( $sSECONDS / 60 ); $sSECONDS = ( $sSECONDS < 0 ) ? 60 - abs( $sSECONDS ) % 60 : $sSECONDS % 60 ; /////////////////////////////// $sMINUTES += $withinMINUTES + $addONminutes ; $addONhours = floor( $sMINUTES / 60 ); $sMINUTES = ( $sMINUTES < 0 ) ? 60 - abs( $sMINUTES ) % 60 : $sMINUTES % 60 ; /////////////////////////////// if ( $sHOURS == 0 ) $sHOURS = 24 ; $sHOURS += $withinHOURS + $addONhours ; $sHOURS = ( $sHOURS < 0 ) ? 24 - abs( $sHOURS ) % 24 : $sHOURS % 24 ; $a = array(); $a['seconds'] = abs( $sSECONDS ); $a['minutes'] = abs( $sMINUTES ); $a['hours'] = abs( $sHOURS ); return $a ; } function get_start_all_date() { $a = array( $this->start_day, $this->start_month, $this->start_year ); return $a ; } function get_end_all_date() { $a = array( $this->end_day, $this->end_month, $this->end_year ); return $a ; } function get_end_all_date_ref( &$m, &$d, &$y ) { $d = $this->end_day ; $m = $this->end_month ; $y = $this->end_year; } function get_start_day() { return $this->start_day ; } function get_start_month() { return $this->start_month ; } function get_start_year() { return $this->start_year ; } function get_end_day() { return $this->end_day ; } function get_end_month() { return $this->end_month ; } function get_end_year() { return $this->end_year ; } function get_start_day_name() { $this->start_day += 0 ; $this->start_month += 0 ; $date = getdate( mktime( 0, 0, 0, $this->start_month, $this->start_day, $this->start_year ) ); return $GLOBALS['name_days'][$date['wday']] ; } function get_end_day_name() { $this->end_day += 0 ; $this->end_month += 0 ; $date = getdate( mktime( 0, 0, 0, $this->end_month, $this->end_day, $this->end_year ) ); return $GLOBALS['name_days'][$date['wday']] ; } function get_start_day_index() { $this->start_day += 0 ; $this->start_month += 0 ; $date = getdate( mktime( 0, 0, 0, $this->start_month, $this->start_day, $this->start_year ) ); return ( $date['wday'] == 0 ) ? 7 : $date['wday'] ; } function get_end_day_index() { $this->end_day += 0 ; $this->end_month += 0 ; $date = getdate( mktime( 0, 0, 0, $this->end_month, $this->end_day, $this->end_year ) ); return ( $date['wday'] == 0 ) ? 7 : $date['wday'] ; } function get_start_month_name() { $this->start_month += 0 ; $m = ( $this->start_month < 10 ) ? "0$this->start_month" : $this->start_month ; return $GLOBALS['name_months'][$m] ; } function get_end_month_name() { $this->end_month += 0 ; $m = ( $this->end_month < 10 ) ? "0$this->end_month" : $this->end_month ; return $GLOBALS['name_months'][$m] ; } function get_month_name( $index ) { return $GLOBALS['name_months'][$index] ; } function get_month_days( $month, $year ) { $a = $this->isbisextile( $year ) ? $GLOBALS['lastday_months2'] : $GLOBALS['lastday_months'] ; if ( $this->isbisextile( $year ) ) return $a[$month] ; else return $a[$month] ; } function swap( &$a, &$b ) { $t = $a ; $a = $b ; $b = $t ; } function isnumeric( $sText ) { $re = "^[0-9]{1,2}$" ; return eregi( $re, $sText ) ; } function check_date( $d, $m, $y ) { if ( !( $this->isnumeric( $d ) ) ) return false ; if ( !( $this->isnumeric( $m ) ) ) return false ; if ( !( $this->isnumeric( $d ) ) ) return false ; $a = array(); $a = $this->isbisextile( $y ) ? $GLOBALS['lastday_months2'] : $GLOBALS['lastday_months'] ; if ( $m < 1 || $m > 12 ) return false ; if ( $d < 1 || $d > $a{$m} ) return false ; return true ; } function check_time( $hours, $minutes, $seconds ) { if ( !( $this->isnumeric( $hours ) ) ) return false ; if ( !( $this->isnumeric( $minutes ) ) ) return false ; if ( !( $this->isnumeric( $seconds ) ) ) return false ; if ( abs( $seconds ) >= 60 ) return false ; if ( abs( $minutes ) >= 60 ) return false ; if ( abs( $hours ) >= 24 ) return false ; return true ; } function today( &$m, &$d, &$y ) { $today = getdate(); $m = $today['mon']; $d = $today['mday']; $y = $today['year']; } function format_today( $fmt, $sep ) { if ( strlen( $fmt ) < 5 || strlen( $fmt ) > 8 ) $fmt = "mmddyyyy" ; if ( strlen( $sep ) == 0 ) $sep = "/" ; $today = getdate(); $m = $today['mon']; $d = $today['mday']; $y = $today['year']; $d += 0 ; $m += 0 ; $y += 0 ; $d = ( $d < 10 ) ? "0$d" : $d ; $m = ( $m < 10 ) ? "0$m" : $m ; switch( $fmt ) { case "ddmmyy": $y = substr( $y, -2 ) ; return "$d$sep$m$sep$y" ; break; case "mmddyy": $y = substr( $y, -2 ) ; return "$m$sep$d$sep$y" ; break; case "ddmmyyyy": return "$d$sep$m$sep$y" ; break; case "mmddyyyy": return "$m$sep$d$sep$y" ; break; default: return "$m$sep$d$sep$y" ; break; } } function format_date( $m, $d, $y, $fmt, $sep ) { if ( !isset( $fmt ) || strlen( $fmt ) < 5 || strlen( $fmt ) > 8 ) $fmt = "mmddyyyy" ; if ( !isset( $sep ) || strlen( $sep ) == 0 ) $sep = "/" ; $d += 0 ; $m += 0 ; $y += 0 ; $d = ( $d < 10 ) ? "0$d" : $d ; $m = ( $m < 10 ) ? "0$m" : $m ; switch( $fmt ) { case "ddmmyy": $y = substr( $y, -2 ) ; return "$d$sep$m$sep$y" ; break; case "mmddyy": $y = substr( $y, -2 ) ; return "$m$sep$d$sep$y" ; break; case "ddmmyyyy": return "$d$sep$m$sep$y" ; break; case "mmddyyyy": return "$m$sep$d$sep$y" ; break; default: return "$m$sep$d$sep$y" ; break; } } function format_time( $hours, $mins, $seconds, $fmt, $sep ) { if ( !isset( $fmt ) || strlen( $fmt ) < 5 || strlen( $fmt ) > 8 ) $fmt = "hhmmss" ; if ( !isset( $sep ) || strlen( $sep ) == 0 ) $sep = ":" ; $hours += 0 ; $mins += 0 ; $seconds += 0 ; $prefix = ( $hours < 0 || $mins < 0 || $seconds < 0 ) ? "-" : "" ; $hours = abs( $hours ); $mins = abs( $mins ); $seconds = abs( $seconds ); $hours = ( $hours < 10 ) ? "0$hours" : $hours ; $mins = ( $mins < 10 ) ? "0$mins" : $mins ; $seconds = ( $seconds < 10 ) ? "0$seconds" : $seconds ; switch( $fmt ) { case "hhmmss": return "$prefix$hours$sep$mins$sep$seconds" ; break; } } function isbefore( $sm, $sd, $sy, $em, $ed, $ey ) { if ( $ey > $sy ) return true ; else if ( $ey < $sy ) return false ; else { if ( $em > $sm ) return true ; else if ( $em < $sm ) return false ; else { if ( $ed > $sd ) return true ; else if ( $ed < $sd ) return false ; else return false ; } } } function isafter( $sm, $sd, $sy, $em, $ed, $ey ) { if ( $this->isbefore( $sm, $sd, $sy, $em, $ed, $ey ) ) return false ; else return true ; } var $start_day ; var $start_month ; var $start_year ; var $days_of_the_year ; var $end_day ; var $end_month ; var $end_year ; var $lastday_months; var $err_no ; } ?>