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<?
// /common/functions_datetime.phpinc
// Setup up datetime functions.
#debugTrackBegin();
// currentDate()
// Returns the current date.
function currentDate() {
$debug_backtrace = debug_backtrace(); $file = basename($debug_backtrace['0']['file']); $filepath = $debug_backtrace['0']['file']; $line = $debug_backtrace['0']['line']; global $TRACK;
$datetime = getdate();
$currentDate =$datetime['year']."-".twoDigit($datetime['mon'])."-".twoDigit($datetime['mday']);
if (isset($GLOBALS['TRACK']) && $GLOBALS['TRACK'] != '') $_SESSION['TRACK'] .= '<li class="pv_f">function '.__FUNCTION__."()=$currentDate".": ".'<span class="pv_fl">'.basename($file).":".$line.": ".basename(__FILE__).":".__LINE__.'</span>'."</li>\n";
return $currentDate;
}
// currentDateTime()
// Returns the current date and time.
function currentDateTime() {
$debug_backtrace = debug_backtrace(); $file = basename($debug_backtrace['0']['file']); $filepath = $debug_backtrace['0']['file']; $line = $debug_backtrace['0']['line']; global $TRACK;
$datetime = getdate();
$currentDateTime = $datetime['year']."-".twoDigit($datetime['mon'])."-".twoDigit($datetime['mday'])." ".twoDigit($datetime['hours']).":".twoDigit($datetime['minutes']).":".twoDigit($datetime['seconds']);
if (isset($GLOBALS['TRACK']) && $GLOBALS['TRACK'] != '') $_SESSION['TRACK'] .= '<li class="pv_f">function '.__FUNCTION__."()=$currentDateTime".": ".'<span class="pv_fl">'.basename($file).":".$line.": ".basename(__FILE__).":".__LINE__.'</span>'."</li>\n";
return $currentDateTime;
}
// date_difference($start_date, $end_date, $workdays_only = false, $skip_holidays = false)
// Calculates the number of work days between 2 given times.
// $start_date = First date.
// $end_date = Second date.
// $workdays_only = Whether to count only work days (eg. Mon-Fri). default is false.
// $skip_holidays = Whether to use the get_holidays() function to skip holiday days as well. default is false.
function date_difference($start_date, $end_date, $workdays_only = false, $skip_holidays = false) {
$debug_backtrace = debug_backtrace(); $file = basename($debug_backtrace['0']['file']); $filepath = $debug_backtrace['0']['file']; $line = $debug_backtrace['0']['line']; global $TRACK;
if ($start_date == '') { return 999999999; }
if ($end_date == '') { return 999999999; }
$start_date = strtotime($start_date);
$end_date = strtotime($end_date);
if ($start_date > 0 && $end_date > 0) {
$seconds_in_a_day = 86400;
$sunday_val = "0";
$saturday_val = "6";
$workday_counter = 0;
$holiday_array = array();
$ptr_year = intval(date("Y", $start_date));
$holiday_array[$ptr_year] = get_holidays(date("Y", $start_date));
for($day_val = $start_date; $day_val <= $end_date; $day_val+=$seconds_in_a_day) {
$pointer_day = date("w", $day_val);
if ($workdays_only == true) {
if (($pointer_day != $sunday_val) AND ($pointer_day != $saturday_val)) {
if ($skip_holidays == true) {
if (intval(date("Y", $day_val))!=$ptr_year) {
$ptr_year = intval(date("Y", $day_val));
$holiday_array[$ptr_year] = get_holidays(date("Y", $day_val));
}
if (!in_array($day_val, $holiday_array[date("Y", $day_val)])) {
$workday_counter++;
}
} else {
$workday_counter++;
}
}
} else {
if ($skip_holidays == true) {
if (intval(date("Y", $day_val))!=$ptr_year) {
$ptr_year = intval(date("Y", $day_val));
$holiday_array[$ptr_year] = get_holidays(date("Y", $day_val));
}
if (!in_array($day_val, $holiday_array[date("Y", $day_val)])) {
$workday_counter++;
}
} else {
$workday_counter++;
}
}
}
$date_difference = $workday_counter;
} else {
$date_difference = 0;
}
if (isset($GLOBALS['TRACK']) && $GLOBALS['TRACK'] != '') $_SESSION['TRACK'] .= '<li class="pv_f">function '.__FUNCTION__."($start_date, $end_date, $workdays_only, $skip_holidays)=$date_difference".": ".'<span class="pv_fl">'.basename($file).":".$line.": ".basename(__FILE__).":".__LINE__.'</span>'."</li>\n";
return $date_difference;
}
// get_holidays($inc_year)
// Looks through a lists of defined holidays and tells you which one is coming up next.
// $inc_year The year we are looking for holidays in
function get_holidays($inc_year) {
$debug_backtrace = debug_backtrace(); $file = basename($debug_backtrace['0']['file']); $filepath = $debug_backtrace['0']['file']; $line = $debug_backtrace['0']['line']; global $TRACK;
//$year = date("Y");
$year = $inc_year;
$holidays[] = new Holiday("New Year's Day", get_timestamp("$year-1-1"));
//$holidays[] = new Holiday("Australia Day", get_timestamp("$year-1-26"));
//$holidays[] = new Holiday("Labour Day", ordinal_day(1, 'Mon', 3, $year));
//$holidays[] = new Holiday("Anzac Day", get_timestamp("$year-4-25"));
//$holidays[] = new Holiday("St. Patrick's Day", get_timestamp("$year-3-17"));
//$holidays[] = new Holiday("Good Friday", easter_date($year)-86400*2);
$holidays[] = new Holiday("Easter", easter_date($year));
//$holidays[] = new Holiday("Easter Monday", easter_date($year)+86400);
//$holidays[] = new Holiday("Foundation Day", ordinal_day(1, 'Mon', 6, $year));
//$holidays[] = new Holiday("Queen's Birthday", ordinal_day(1, 'Mon', 10, $year));
$holidays[] = new Holiday("Memorial Day", memorial_day($year));
$holidays[] = new Holiday("Mother's Day", ordinal_day(2, 'Sun', 5, $year));
$holidays[] = new Holiday("Father's Day", ordinal_day(3, 'Sun', 6, $year));
$holidays[] = new Holiday("Independence Day", get_timestamp("$year-7-4"));
$holidays[] = new Holiday("Labor Day", ordinal_day(1, 'Mon', 9, $year));
$holidays[] = new Holiday("Veterans Day", get_timestamp("$year-11-11"));
$holidays[] = new Holiday("Christmas", get_timestamp("$year-12-25"));
//$holidays[] = new Holiday("Boxing Day", get_timestamp("$year-12-26"));
/** /
foreach ( $holidays as $holiday) {
d_Var('$holiday->name',get_object_vars($holiday),'d');
}
/**/
$numHolidays = count($holidays) - 1;
$holidayDatesOnly = array();
for ($i = 0; $i < $numHolidays; $i++) {
$holidayDatesOnly[] = $holidays[$i]->date;
}
unset($holidays);
if (isset($GLOBALS['TRACK']) && $GLOBALS['TRACK'] != '') { $_SESSION['TRACK'] .= '<li class="pv_f">function '.__FUNCTION__."($inc_year)=Array"; foreach($holidayDatesOnly as $key=>$value) { $_SESSION['TRACK'] .= " [$key]=$value"; } $_SESSION['TRACK'] .= ": ".'<span class="pv_fl">'.basename($file).":".$line.": ".basename(__FILE__).":".__LINE__.'</span>'."</li>\n"; }
return $holidayDatesOnly;
}
// get_timestamp($MySqlDateTime)
// Takes a datetime in yyyy-mm-dd hh:mm:ss format and returns a PHP timestamp
// $MySqlDateTime = The date to convert in yyyy-mm-dd hh:mm:ss format.
// $atMidnight = 1 = a time of 00:00:00, 0 = time from MySqlDateTime (default).
function get_timestamp($MySqlDateTime,$atMidnight = 0) {
$debug_backtrace = debug_backtrace(); $file = basename($debug_backtrace['0']['file']); $filepath = $debug_backtrace['0']['file']; $line = $debug_backtrace['0']['line']; global $TRACK;
/** /
// Split the date from the time.
$dateTime = explode(" ",$MySqlDateTime);
// Split the date into year, month, day.
if (isset($dateTime[0])) { $datePart = explode("-",$dateTime[0]); } else { $datePart = ''; }
for ($i=0; $i<3; $i++) {
if (!isset($datePart[$i]) || $datePart[$i] == '') { $datePart[$i] = 0;; }
}
// Split the time int hour, minute, second.
if (isset($dateTime[1]) && !$atMidnight) { $timePart = explode(":",$dateTime[1]); } else { $timePart = ''; }
for ($i=0; $i<3; $i++) {
if (!isset($timePart[$i]) || $timePart[$i] == '') { $timePart[$i] = 0;; }
}
#echo "\$MySqlDateTime=",$MySqlDateTime,": ",basename(__FILE__),": ",__LINE__,"<br>\n";
#echo "\$datePart="; print_r($datePart); echo ": ",basename(__FILE__),": ",__LINE__,"<br>\n";
#echo "\$timePart="; print_r($timePart); echo ": ",basename(__FILE__),": ",__LINE__,"<br>\n";
// Create the timestamp mktime ($hour, $minute, $second, $month, $day, $year).
$var_timestamp = mktime ($timePart[0],$timePart[1],$timePart[2],$datePart[1],$datePart[2],$datePart[0]);
/**/
$var_timestamp = strtotime($MySqlDateTime);
if (isset($GLOBALS['TRACK']) && $GLOBALS['TRACK'] != '') $_SESSION['TRACK'] .= '<li class="pv_f">function '.__FUNCTION__."($MySqlDateTime,$atMidnight)=$var_timestamp".": ".'<span class="pv_fl">'.basename($file).":".$line.": ".basename(__FILE__).":".__LINE__.'</span>'."</li>\n";
return($var_timestamp);
}
// Holiday:class
// Holds a holiday name and date.
class Holiday{
//var $name;
//var $date;
public $name;
public $date;
// Contructor to define the details of each holiday as it is created.
function __construct($name, $date) {
$this->name = $name; // Official name of holiday.
$this->date = $date; // UNIX timestamp of date.
}
}
// memorial_day($inc_year)
// Returns the date of Memorial Day for a givven year.
// $inc_year = The year to calc Memorial Day for.
function memorial_day($inc_year) {
$debug_backtrace = debug_backtrace(); $file = basename($debug_backtrace['0']['file']); $filepath = $debug_backtrace['0']['file']; $line = $debug_backtrace['0']['line']; global $TRACK;
for($date_stepper = intval(date("t", strtotime("$inc_year-05-01"))); $date_stepper >= 1; $date_stepper--) {
if (date("l", strtotime("$inc_year-05-$date_stepper"))=="Monday") {
$memorial_day = strtotime("$inc_year-05-$date_stepper");
if (isset($GLOBALS['TRACK']) && $GLOBALS['TRACK'] != '') $_SESSION['TRACK'] .= '<li class="pv_f">function '.__FUNCTION__."($inc_year)=$memorial_day".": ".'<span class="pv_fl">'.basename($file).":".$line.": ".basename(__FILE__).":".__LINE__.'</span>'."</li>\n";
return $memorial_day;
break;
}
}
}
// ordinal_day($ord, $day, $month, $year)
// Returns the date of the $ord $day of the $month.
// I.E. ordinal_day(3, 'Sun', 5, 2001) returns the date of the 3rd Sunday of May (ie. Mother's Day).
// $ord = The week count.
// $day = The day of the week. Must be 3 char abbrev Mon, Tue, Wed, Thu, Fri, Sat, Sun.
// $month = The month of the yeat.
// $year = The year.
/* @return unknown */
function ordinal_day($ord, $day, $month, $year) {
$debug_backtrace = debug_backtrace(); $file = basename($debug_backtrace['0']['file']); $filepath = $debug_backtrace['0']['file']; $line = $debug_backtrace['0']['line']; global $TRACK;
$firstOfMonth = get_timestamp("$year-$month-01");
$lastOfMonth = $firstOfMonth + date("t", $firstOfMonth) * 86400;
$dayOccurs = 0;
for ($i = $firstOfMonth; $i < $lastOfMonth ; $i += 86400) {
if (date("D", $i) == $day) {
$dayOccurs++;
if ($dayOccurs == $ord) {
$ordDay = $i;
}
}
}
if (isset($GLOBALS['TRACK']) && $GLOBALS['TRACK'] != '') $_SESSION['TRACK'] .= '<li class="pv_f">function '.__FUNCTION__."($ord, $day, $month, $year)=$ordDay".": ".'<span class="pv_fl">'.basename($file).":".$line.": ".basename(__FILE__).":".__LINE__.'</span>'."</li>\n";
return $ordDay;
}
// time_difference($start, $end)
/**
* Function to calculate date or time difference.
*
* Function to calculate date or time difference. Returns an array or
* false on error.
*
* @author J de Silva <giddomains@gmail.com>
* @copyright Copyright © 2005, J de Silva
* @link http://www.gidnetwork.com/b-16.html Get the date / time difference with PHP
* @param string $start
* @param string $end
* @return array
*/
function time_difference($start, $end) {
$debug_backtrace = debug_backtrace(); $file = basename($debug_backtrace['0']['file']); $filepath = $debug_backtrace['0']['file']; $line = $debug_backtrace['0']['line']; global $TRACK;
$uts['start'] = strtotime($start);
$uts['end'] = strtotime($end);
if ($uts['start']!==-1 && $uts['end']!==-1) {
if ($uts['end'] >= $uts['start']) {
$diff = $uts['end'] - $uts['start'];
if ($days=intval((floor($diff/86400)))) $diff = $diff % 86400;
if ($hours=intval((floor($diff/3600)))) $diff = $diff % 3600;
if ($minutes=intval((floor($diff/60)))) $diff = $diff % 60;
$diff = intval($diff);
$time_difference = array('days'=>$days, 'hours'=>$hours, 'minutes'=>$minutes, 'seconds'=>$diff);
} else {
trigger_error("Ending date/time is earlier than the start date/time", E_USER_WARNING);
$time_difference = false;
}
} else {
trigger_error("Invalid date/time data detected", E_USER_WARNING);
$time_difference = false;
}
if (isset($GLOBALS['TRACK']) && $GLOBALS['TRACK'] != '') { $_SESSION['TRACK'] .= '<li class="pv_f">function '.__FUNCTION__."($start, $end)=Array"; foreach($time_difference as $key=>$value) { $_SESSION['TRACK'] .= " [$key]=$value"; } $_SESSION['TRACK'] .= ": ".'<span class="pv_fl">'.basename($file).":".$line.": ".basename(__FILE__).":".__LINE__.'</span>'."</li>\n"; }
return $time_difference;
}
function valid_date($date, $format='') {
#if (da()) printVar('$date',$date);
$dateParts = explode(' ',$date); $date = $dateParts[0]; // Throw away time.
#if (da()) printVar('$date',$date);
if ( substr_count($date,'-') == 2 || substr_count($date,'/') == 2 || substr_count($date,'.') == 2 ) {
if (substr_count($date,'/') == 2 ) $date = str_replace("/","-",$date);
if (substr_count($date,'.') == 2 ) $date = str_replace(".","-",$date);
$dateArray = explode("-", $date);
if ( strlen($dateArray[0]) == 4 ) {
// yyyy-mm-dd format.
$Year = $dateArray[0]; $Month = $dateArray[1]; $Day = $dateArray[2];
} else {
// mm/dd/yyyy format.
$Year = $dateArray[2]; $Month = $dateArray[0]; $Day = $dateArray[1];
}
#if (da()) printVar('$Month',$Month);
#if (da()) printVar('$Day',$Day);
#if (da()) printVar('$Year',$Year);
#if (da()) printVar('is_numeric($Year)',is_numeric($Year));
if ( !is_numeric($Month) || !is_numeric($Day) || !is_numeric($Year) ) {
$valid_date = false;
} else {
$valid_date = checkdate($Month, $Day, $Year);
}
} else {
$valid_date = false;
}
if ( $valid_date ) {
switch ($format) {
case 'USA':
$valid_date = twoDigit($Month)."/".twoDigit($Day)."/".$Year;
break;
default:
$valid_date = $Year."-".twoDigit($Month)."-".twoDigit($Day);
break;
}
}
return $valid_date;
}
function valid_time($time, $format="", $valid_time_DEBUG=false) {
#$valid_time_DEBUG = true;
if ( isset($time) && $time != '' ) {
if ($valid_time_DEBUG) printVar('$time',$time);
$valid_time = true;
$time = explode(':',str_replace("a",":a",str_replace("p",":p",str_replace("m","",str_replace(" ","",strtolower($time))))));
if ($valid_time_DEBUG) printVar('count($time)',count($time));
if ($valid_time_DEBUG) printVar('$time',$time);
// Fix $time to hh:mm:ss:meridiem.
if ( count($time) == 3 && ( $time[2] == 'a' || $time[2] == 'p' ) ) {
// hh:mm:meridiem.
$time[3] = $time[2]; // Move meridiem.
$time[2] = 0; // Set ss.
if ($valid_time_DEBUG) printVar('$time',$time);
}
if ( count($time) == 2 ) {
if ( $time[1] == 'a' || $time[1] == 'p' ) {
// hh:meridiem.
$time[3] = $time[1]; // Move meridiem.
$time[1] = 0; // Set mm.
$time[2] = 0; // Set ss.
if ($valid_time_DEBUG) printVar('$time',$time);
} else {
// hh:mm.
$time[2] = 0; // Set seconds.
if ($valid_time_DEBUG) printVar('$time',$time);
}
}
if ( count($time) == 1 ) {
// hh.
$time[1] = 0; // Set mm.
$time[2] = 0; // Set ss.
if ($valid_time_DEBUG) printVar('$time',$time);
}
if ( !isset($time[3]) ) {
// No meridiem.
if ( $time[0] < 12 || $time[0] == 24 ) {
$time[3] = 'a';
if ($valid_time_DEBUG) printVar('$time',$time);
} else {
$time[3] = 'p';
if ($valid_time_DEBUG) printVar('$time',$time);
}
}
if ( is_numeric($time[0])
&& $time[0] == ((int)$time[0])
&& $time[0] >= 0
&& $time[0] <= 24
&& is_numeric($time[1])
&& $time[1] == ((int)$time[1])
&& $time[1] >= 0
&& $time[1] <= 59
&& is_numeric($time[2])
&& $time[2] == ((int)$time[2])
&& $time[2] >= 0
&& $time[2] <= 59
&& ( $time[3] == 'a' || $time[3] == 'p' )
) {
// hh mm, and ss are integers in range and meridiem is a or p.
if ( $time[0] > 12 ) {
if ( $time[0] != 24 ) {
$time[0] -= 12; // Subtract 12 if 24 hr time.
if ($valid_time_DEBUG) printVar('$time',$time);
} else {
if ( $time[1] == 0 ) {
$time[0] = 0; // turn 24:00 into 00:00.
$time[3] = "a";
if ($valid_time_DEBUG) printVar('$time',$time);
} else {
// use of 24 hh with non 0 mm.
$valid_time = false;
}
}
}
if ( strlen($format) == 3 && substr($format,strlen($format)-1,1) == 's') {
$seconds = ':'.twoDigit($time[2]);
$format = substr($format,0,strlen($format)-1);
} else {
$seconds = '';
}
#if ( $format != '' ) printVar('$format',$format);
switch ($format) {
case '24':
if ( $time[3] == 'p' && $time[0] != 12 ) {
$time[0] += 12;
if ($valid_time_DEBUG) printVar('$time',$time);
} else {
#if ( $time[0] == 12 ) {
# $time[0] -= 12;
# if ($valid_time_DEBUG) printVar('$time',$time);
#}
}
if ( $time[0] == 24 && $time[3] == 'p' ) {
$time[0] -= 12;
if ($valid_time_DEBUG) printVar('$time',$time);
}
$valid_time = twoDigit($time[0]).":".twoDigit($time[1]).$seconds;
break;
default:
if ( $time[0] == 0 ) {
$time[0] += 12;
if ($valid_time_DEBUG) printVar('$time',$time);
}
if ( strlen($time[0]) == 2 && substr($time[0],0,1) == '0' ) {
$time[0] = substr($time[0],1,1);
if ($valid_time_DEBUG) printVar('$time',$time);
}
if ( $time[3] == 'a' ) {
$meridiem = ' am';
} else {
$meridiem = ' pm';
}
$valid_time = $time[0].":".twoDigit($time[1]).$seconds.$meridiem;
break;
}
} else {
// hh or mm is not valid.
$valid_time = false;
}
} else {
// time is not set or blank.
$valid_time = false;
}
if ($valid_time_DEBUG) printVar('$time',$time);
if ($valid_time_DEBUG) printVar('$valid_time',$valid_time);
#if ($valid_time_DEBUG) exit;
return $valid_time;
}
#debugTrackEnd();
?>