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<?php
/******************************************************************************************************
/ Class SDTO - Simple DateTime Object
/ A simple way to handle times and dates and to convert between
/ System and SQL Formats
/
/ (C) 2001-2004 Christian Hansel, CVH, chris@cpi-service.com
/
/ Distributed under GPL, may be distributed, modified and utilized if Copyright
/ notice is maintained and manual is provided and author is notified of modifications
/
/ Please support our development by sending remarks or comments or suggestions
/
/********************************************************************************************************/
class SimpleDateTimeObject {
var $basetime; // @private - holds UniX Timestamp
var $calctime; // @private - holds UniX Timestamp Calculations
var $stdParamDateList; // @private - holds StandardParameters for Dropdown-lists
var $stdParamAdd; // @private - holds StandardParameters for Adding/Substracting Periods
/* Constructor */
function SimpleDateTimeObject ($timestamp = -1) {
$this->basetime = ($timestamp == -1) ? mktime() : $timestamp;
$this->calctime = $this->basetime;
$this->stdParamDateList = array( "start" => 0,
"run" => 5,
"steps" => 1,
"running" =>"days",
"format" =>"d.M.Y H:i",
"keyformat" => "" ,
"style" => "");
$this->stdParamAdd = array( "years"=>0,
"months"=>0,
"days"=>0,
"hours"=>0,
"minutes"=>0,
"seconds"=>0);
}
/****************************************************************************************************
/ @public Time2Array -
/ Helper Function which Transforms a Time-String
/ in SQL Format into an Array of Periods
/ Parameters $timestring - e.g. "-01:00:00)
/
/********************************************************************************************************/
function Time2Array($timestring) {
$timestring = preg_replace("#\s#","",$timestring);
$timestring = preg_replace("#\:#","",$timestring);
$timestring = preg_replace("#\.#","",$timestring);
$timestring = preg_replace("#\-#","",$timestring);
$timestring = preg_replace("#\/#","",$timestring);
$fac = ("-" == substr($timestring,0,1)) ? -1 : 1;
$timestring = ("-" == substr($timestring,0,1) || "+" == substr($timestring,0,1)) ? substr($timestring,1,strlen($timestring)-1) : $timestring;
$array['hours'] = $fac * substr($timestring, 0,2);
$array['minutes'] = $fac * substr($timestring, 2,2) ;
$array['seconds'] = (4 < strlen($timestring)) ? $fac * substr($timestring, 4,2) : 0;
return $array;
}
/****************************************************************************************************
/ @public DateTime2Array -
/ Helper Function which Transforms a DateTime-String
/ in SQL Format into an Array of Periods
/ Parameters $timestring - e.g. "12.01.2004 23:00:00)
/
/********************************************************************************************************/
function DateTime2Array($timestring) {
$timestring = preg_replace("#\s#","",$timestring);
$timestring = preg_replace("#\:#","",$timestring);
$timestring = preg_replace("#\.#","",$timestring);
$timestring = preg_replace("#\/#","",$timestring);
$timestring = preg_replace("#\-#","",$timestring);
$fac = ("-" == substr($timestring,0,1)) ? -1 : 1;
$timestring = ("-" == substr($timestring,0,1)) ? substr($timestring,1,strlen($timestring)-1) : $timestring;
$array['years'] = (6==strlen($timestamp)) ? $fac * substr($timestamp,0,2): $fac * substr($timestamp,0,4);
$array['months'] = (6==strlen($timestamp)) ? $fac * substr($timestamp,2,2): $fac * substr($timestamp,4,2);
$array['days'] = (6==strlen($timestamp)) ? $fac * substr($timestamp,4,2): $fac * substr($timestamp,6,2);
$array['hours'] = (12 > strlen($timestamp)) ? 0 : $fac * substr($timestamp, 8,2);
$array['minutes'] = (12 > strlen($timestamp)) ? 0 : $fac * substr($timestamp, 10,2);
$array['seconds'] = (14 > strlen($timestamp)) ? 0 : $fac * substr($timestamp, 12,2);
return $array;
}
/****************************************************************************************************
/ @public add -
/ Adds a Period to the BaseTime of the Object
/ Returns a Unix Timestamp
/ Parameters $param [Array]- e.g.array("days"=>2, "months"=> 1, "hours"=>4)
/ optional $overwrite [Bool] = true - If true the BaseTime of the
/ Object will be overwritten with
/ or adjusted to the calculated result
/
/********************************************************************************************************/
function add($param = array(), $overwrite = true) {
$base_day = date ("d",$this->basetime);
$base_month = date ("m",$this->basetime);
$base_year = date ("Y",$this->basetime);
$base_hour = date ("H",$this->basetime);
$base_minute = date ("i",$this->basetime);
$base_second = date ("s",$this->basetime);
$hours = (isset($param['hours']) && ! empty($param['hours'])) ? $param['hours'] : $this->stdParamAdd['hours'];
$minutes = (isset($param['minutes']) && ! empty($param['minutes'])) ? $param['minutes'] : $this->stdParamAdd['minutes'];
$seconds = (isset($param['seconds']) && ! empty($param['seconds'])) ? $param['seconds'] : $this->stdParamAdd['seconds'];
$days = (isset($param['days']) && ! empty($param['days'])) ? $param['days'] : $this->stdParamAdd['days'];
$months = (isset($param['months']) && ! empty($param['months'])) ? $param['months'] : $this->stdParamAdd['months'];
$years = (isset($param['years']) && ! empty($param['years'])) ? $param['years'] : $this->stdParamAdd['years'];
$this->calctime = mktime ( $base_hour + $hours,
$base_minute + $minutes,
$base_second + $seconds,
$base_month + $months,
$base_day + $days,
$base_year + $years);
if ($overwrite) {
$this->basetime = $this->calctime;
}
return $this->calctime;
}
/****************************************************************************************************
/ @public sub -
/ Subtracts a Period from the BaseTime of the Object
/ Returns a Unix Timestamp
/ Parameters $param [Array]- e.g.array("days"=>2, "months"=> 1, "hours"=>4)
/ optional $overwrite [Bool] = true - If true the BaseTime of the
/ Object will be overwritten with
/ or adjusted to the calculated result
/
/********************************************************************************************************/
function sub($param = array(), $overwrite = true) {
$base_day = date ("d",$this->basetime);
$base_month = date ("m",$this->basetime);
$base_year = date ("Y",$this->basetime);
$base_hour = date ("H",$this->basetime);
$base_minute = date ("i",$this->basetime);
$base_second = date ("s",$this->basetime);
$hours = (isset($param['hours']) && ! empty($param['hours'])) ? $param['hours'] : $this->stdParamAdd['hours'];
$minutes = (isset($param['minutes']) && ! empty($param['minutes'])) ? $param['minutes'] : $this->stdParamAdd['minutes'];
$seconds = (isset($param['seconds']) && ! empty($param['seconds'])) ? $param['seconds'] : $this->stdParamAdd['seconds'];
$days = (isset($param['days']) && ! empty($param['days'])) ? $param['days'] : $this->stdParamAdd['days'];
$months = (isset($param['months']) && ! empty($param['months'])) ? $param['months'] : $this->stdParamAdd['months'];
$years = (isset($param['years']) && ! empty($param['years'])) ? $param['years'] : $this->stdParamAdd['years'];
$this->calctime = mktime ( $base_hour - $hours,
$base_minute - $minutes,
$base_second - $seconds,
$base_month - $months,
$base_day - $days,
$base_year - $years);
if ($overwrite) {
$this->basetime = $this->calctime;
}
return $this->calctime;
}
/****************************************************************************************************
/ @public diff_MySQL -
/ Calculates the Difference between a MYSQL Timestamp
/ and the Objects Basetime which is useful for SQL commands
/ like "SELECT DAT_ADD(mydate, INTERVAL '10 02' DAY_HOUR)
/ or to be used in PHP/HTML : print "The time you have to do this job is ".$result['days'];
/ returns an array like Array { "years" => 1 ,
/ "weeks" => 5 ,
/ "days" => 3 ,
/ "hours" => 0,
/ "minutes" => 35 ,
/ "days" => 0 }
/ when the Parameter $timestring lies 1 year and 5 weeks and 3 days and 35 minutes after
/ the Basetime of the Object }
/ Parameters $timestring - A MysQL Dat/DateTime String : e.g. "20040711132712"
/ $allow_negative - if true negative Differences will be returned as such
/ otherwise differences are always positive
/
/********************************************************************************************************/
function diff_MySQL($timestring, $allow_negative = false) {
$basetime = $this->basetime; // 2BRemembered
$target = $this->setMySQLDateTime($timestring);
if ($target > $basetime) {
$diff = $target - $basetime ;
$fac = 1;
} else {
$diff = $basetime-$target;
$fac = ($allow_negative)? -1 : 1;
}
$diffarr['years'] = $fac * $this->extract_from_seconds($diff,"years");
$diffarr['weeks'] = $fac * $this->extract_from_seconds($diff,"weeks");
$diffarr['days'] = $fac * $this->extract_from_seconds($diff,"days");
$diffarr['hours'] = $fac * $this->extract_from_seconds($diff,"hours");
$diffarr['minutes'] = $fac * $this->extract_from_seconds($diff,"minutes");
$diffarr['seconds'] = $fac * $this->extract_from_seconds($diff,"seconds");
$this->basetime = $basetime;
return $diffarr;
}
/****************************************************************************************************
/ @private / public extract_from_seconds -
/ extracts full years / days / weeks / hours / or minutes from a Unix Timestamp a
/ any period given seconds
/ returns an integer of the time unit provided as parameter 2 (e.g. 'hours')
/ Parameters $seconds !!!ByRef!!! - An integer of seconds
/ $what (String) - What shall be extracted ("hours"/"minutes"/"days"/"weeks"/"years")
/
/
/********************************************************************************************************/
function extract_from_seconds(&$seconds,$what) {
switch ($what) {
case "minutes": case "minutes": case "minutes": case "i":
$value = bcdiv($seconds,60);
$seconds = bcmod($seconds,60);
break;
case "hours": case "H": case "h": case "hour":
$value = bcdiv($seconds,3600);
$seconds = bcmod($seconds,3600);
break;
case "days": case "D": case "d": case "day":
$value = bcdiv($seconds,3600*24);
$seconds = bcmod($seconds,3600*24);
break;
case "weeks": case "W": case "w": case "week":
$value = bcdiv($seconds,3600*24*7);
$seconds = bcmod($seconds,3600*24*7);
break;
case "years": case "year": case "y": case "Y":
$value = bcdiv($seconds,3600*24*365);
$seconds = bcmod($seconds,3600*24*365);
break;
default:
$value = $seconds;
}
return $value;
}
/****************************************************************************************************
/ @private / public reset -
/ resets the Object's basetime to the current Systemtime
/
/
/********************************************************************************************************/
function reset() {
$this->DateTimeObject(mktime());
}
/****************************************************************************************************
/ @public setMySQLDateTime($timestamp) -
/ Sets the Object's base time to the time provided by Timestring
/ return Unix timestamp equivilant
/ Parameters : $timestring = String of MySQL DateTime (e.g ("20010911091200") or "2001-09-11 09:12:00")
/
/
/********************************************************************************************************/
function setMySQLDateTime($timestring) {
$timestring .="";
$timestring = preg_replace("#\s#","",$timestring);
$timestring = preg_replace("#\:#","",$timestring);
$timestring = preg_replace("#\.#","",$timestring);
$timestring = preg_replace("#\-#","",$timestring);
$timestring = preg_replace("#\/#","",$timestring);
$year = (6==strlen($timestring)) ? substr($timestring,0,2): substr($timestring,0,4);
$month = (6==strlen($timestring)) ? substr($timestring,2,2): substr($timestring,4,2);
$day = (6==strlen($timestring)) ? substr($timestring,4,2): substr($timestring,6,2);
$hour = (12 > strlen($timestring)) ? 0 : substr($timestring, 8,2);
$minute = (12 > strlen($timestring)) ? 0 : substr($timestring, 10,2);
$second = (14 > strlen($timestring)) ? 0 : substr($timestring, 12,2);
$this->SimpleDateTimeObject(mktime($hour,$minute,$second,$month, $day,$year));
return $this->getTimestamp();
}
/****************************************************************************************************
/ @public getMySQLDateTime() -
/ Returns the Object's base time in preset MySQLFormat "YmdHis"
/
/
/
/********************************************************************************************************/
function getMySQLDateTime(){
return date("YmdHis",$this->basetime);
}
/****************************************************************************************************
/ @public getTimestamp() -
/ Returns the Object's base time as Unix TimeStamp
/
/
/
/********************************************************************************************************/
function getTimestamp() {
return $this->basetime;
}
/****************************************************************************************************
/ @public day() -
/ Returns the Day of the Object's base time
/ Paramters optional $format - specify the format of the returned value
/ according to the allowed Format Strings of
/ PHP 's own date command
/ optional $timestamp - specify a time of which a part shall be returned
/ if not specified the Objects BaseTime will be used
/
/
/********************************************************************************************************/
function day( $format = "d", $timestamp = 0) {
if ($timestamp == 0) { return date ($format,$this->basetime);
} else {return date ($format,$timestamp);}
}
/****************************************************************************************************
/ @public month() -
/ Returns the Month of the Object's base time
/ Paramters optional $format - specify the format of the returned value
/ according to the allowed Format Strings of
/ PHP 's own date command
/ optional $timestamp - specify a time of which a part shall be returned
/ if not specified the Objects BaseTime will be used
/
/
/********************************************************************************************************/
function month ( $format = "m", $timestamp = 0) {
if ($timestamp == 0) { return date ($format,$this->basetime);
} else {return date ($format,$timestamp);}
}
/****************************************************************************************************
/ @public year() -
/ Returns the Year of the Object's base time
/ Paramters optional $format - specify the format of the returned value
/ according to the allowed Format Strings of
/ PHP 's own date command
/ optional $timestamp - specify a time of which a part shall be returned
/ if not specified the Objects BaseTime will be used
/
/
/********************************************************************************************************/
function year ( $format = "Y", $timestamp = 0) {
if ($timestamp == 0) { return date ($format,$this->basetime);
} else {return date ($format,$timestamp);}
}
/****************************************************************************************************
/ @public hour() -
/ Returns the hour of the Object's base time
/ Paramters optional $format - specify the format of the returned value
/ according to the allowed Format Strings of
/ PHP 's own date command
/ optional $timestamp - specify a time of which a part shall be returned
/ if not specified the Objects BaseTime will be used
/
/
/********************************************************************************************************/
function hour ( $format = "H", $timestamp = 0) {
if ($timestamp == 0) { return date ($format,$this->basetime);
} else {return date ($format,$timestamp);}
}
/****************************************************************************************************
/ @public minute() -
/ Returns the Minutes of the Object's base time
/ Paramters optional $format - specify the format of the returned value
/ according to the allowed Format Strings of
/ PHP 's own date command
/ optional $timestamp - specify a time of which a part shall be returned
/ if not specified the Objects BaseTime will be used
/
/
/********************************************************************************************************/
function minute ( $format = "i", $timestamp = 0) {
if ($timestamp == 0) { return date ($format,$this->basetime);
} else {return date ($format,$timestamp);}
}
/****************************************************************************************************
/ @public second() -
/ Returns the Seconds of the Object's base time
/ Paramters optional $format - specify the format of the returned value
/ according to the allowed Format Strings of
/ PHP 's own date command
/ optional $timestamp - specify a time of which a part shall be returned
/ if not specified the Objects BaseTime will be used
/
/
/********************************************************************************************************/
function second ( $format = "s", $timestamp = 0) {
if ($timestamp == 0) { return date ($format,$this->basetime);
} else {return date ($format,$timestamp);}
}
/****************************************************************************************************
/ @public getString -
/ Returns the Formated Time of the Object's base time
/ Paramters optional $format - specify the format of the returned value
/ according to the allowed Format Strings of
/ PHP 's own date command
/ optional $timestamp - specify a time of which a part shall be returned
/ if not specified the Objects BaseTime will be used
/
/
/********************************************************************************************************/
function getString ( $format = "M, dS Y h:i a", $timestamp = 0) {
if ($timestamp == 0) { return date ($format,$this->basetime);
} else {return date ($format,$timestamp);}
}
/****************************************************************************************************
/ @public dropdown
/ - returns a string containing a HTML DropDown Field (SELECT) based on the current basetime
/ Parameters :
/ $name - Name of the HTML-Select Tag
/ optional $param - Array of Paramaters configuring the Select Field
['formatshow'] - Specify the way the entries will be showed
/ ['format'] - Specify the kind of Field to be produced (months / years / days ..
What will be run?
['start'] - Specify a start value
From where will be run?
/ ['run'] - Specify the number of entries to be produced
/ How far will be run?/
/ ['style'] - Specify a CSS - Class to be used
/ ['selectsize'] - Specify the Size of the Select Tag ( 1 Row or multirow)
/ ['selecteddate'] - preselected Date
/
/***************************************************************************************************/
function dropdown ($name, $param=array()) {
$start = (isset($param['start']) && ! empty($param['start'])) ? $param['start'] : $this->stdParamAdd['start'];
$run = (isset($param['run']) && ! empty($param['run'])) ? $param['run'] : $this->stdParamAdd['run'];
$format = (isset($param['format']) && ! empty($param['format'])) ? $param['format'] : "d";
$style = (isset($param['style']) && ! empty($param['style'])) ? $param['style'] : "";
$selectsize = (isset($param['selectsize']) && ! empty($param['selectsize'])) ? $param['selectsize'] : 1;
$selecteddate = (isset($param['selecteddate']) && ! empty($param['selecteddate'])) ? $param['selecteddate'] : $this->basetime;
$base_day = date ("d",$this->basetime);
$base_month = date ("m",$this->basetime);
$base_year = date ("Y",$this->basetime);
$base_hour = date ("H",$this->basetime);
$base_minute = date ("i",$this->basetime);
$base_second = date ("s",$this->basetime);
switch ($format) {
case "months": case "month": case "m":
$frm = "m"; $field = &$base_month; $base_day=1; // As there are months which don't have 29th,30th,31st
break;
case "years": case "year": case "y": $base_day=1; // As there are months which don't have 29th,30th,31st
$frm = "Y"; $field = &$base_year;
break;
case "hours": case "hour": case "h":
$frm = "H"; $field = &$base_hour;
break;
case "minutes": case "minute": case "i":
$frm = "i"; $field = &$base_minute;
break;
case "seconds": case "second": case "s":
$frm = "s"; $field = &$base_second;
break;
case "days": case "day": case "d": default:
$frm = "d"; $field = &$base_day;
break;
}
$formatshow = (isset($param['formatshow']) && ! empty($param['formatshow'])) ? $param['formatshow'] : $frm;
$start = date($frm, $this->basetime) + $start;
$selected = date($frm, $selecteddate);
for($field=$start; $field<=$start+$run; $field++)
{
$key = date ($frm,mktime ( $base_hour, $base_minute, $base_second, $base_month, $base_day, $base_year));
$value = date ($formatshow,mktime ( $base_hour, $base_minute, $base_second, $base_month, $base_day, $base_year));
$outputString .= ($key == $selected) ? ' <option value="'.$key.'" selected="selected">'.$value."</option>\n" : ' <option value="'.$key.'">'.$value."</option>\n";
}
return "<select name=\"".$name."\" class=\"$style\" size=\"$selectsize\">\n".$outputString."</select>\n";
}
/****************************************************************************************************
/ @public datelist
/ - returns a string containing a HTML DropDown Field (SELECT) based on the current basetime
/ Parameters :
/ $name - Name of the HTML-Select Tag
/ optional $param - Array of Paramaters configuring the Select Field
/ ['format'] - Specify the format of the Labels in the Selectbox
['keyformat'] - Specify the format of the value in the option tags
['running'] - Specify iteration / What will be run ? (e.g. "hours", "years")
['start'] - Specify a start value
From where will be run?
/ ['run'] - Specify the number of entries to be produced
/ How far will be run?/
['steps'] - Specify the distance between the entries in X format
/ ['style'] - Specify a CSS - Class to be used
/ ['selectsize'] - Specify the Size of the Select Tag ( 1 Row or multirow)
/ ['selecteddate'] - preselected Date
/
/***************************************************************************************************/
function datelist ( $name, $param = array()) {
$base_day = date ("d",$this->basetime);
$base_month = date ("m",$this->basetime);
$base_year = date ("Y",$this->basetime);
$base_hour = date ("H",$this->basetime);
$base_minute = date ("i",$this->basetime);
$base_second = date ("s",$this->basetime);
$start = (isset($param['start']) && ! empty($param['start'])) ? $param['start'] : $this->stdParamAdd['start'];
$run = (isset($param['run']) && ! empty($param['run'])) ? $param['run'] : $this->stdParamAdd['run'];
$steps = (isset($param['steps']) && ! empty($param['steps'])) ? $param['steps'] : $this->stdParamAdd['steps'];
$running = (isset($param['running']) && ! empty($param['running'])) ? $param['running'] : $this->stdParamAdd['running'];
$format = (isset($param['format']) && ! empty($param['format'])) ? $param['format'] : $this->stdParamAdd['format'];
$keyformat = (isset($param['keyformat']) && ! empty($param['keyformat'])) ? $param['keyformat'] : $this->stdParamAdd['keyformat'];
$style = (isset($param['style']) && ! empty($param['style'])) ? $param['style'] : "";
$selectsize = (isset($param['selectsize']) && ! empty($param['selectsize'])) ? $param['selectsize'] : 1;
$selecteddate = (isset($param['selecteddate']) && ! empty($param['selecteddate'])) ? $param['selecteddate'] : $this->basetime;
$steps = ($steps<1) ? 1 : $steps;
switch ($running) {
case "days": case "day": case "d":
$field = &$base_day; $frm = "d";
break;
case "months": case "month": case "m":
$field = &$base_month; $frm = "m";
break;
case "years": case "year": case "y":
$field = &$base_year; $frm = "Y";
break;
case "hours": case "hour": case "h":
$field = &$base_hour; $frm = "H";
break;
case "minutes": case "minute": case "i":
$field = &$base_minute; $frm = "i";
break;
case "seconds": case "second": case "s":
$field = &$base_second; $frm = "s";
break;
}
$start = date($frm, $this->basetime) + $start;
$selected = date($keyformat, $selecteddate);
for($field=$start; $field<=$start+$run; $field=$field+$steps)
{
if ("" == $keyformat) {
$key = mktime ( $base_hour, $base_minute, $base_second, $base_month, $base_day, $base_year);
} else { $key = date($keyformat,mktime ( $base_hour, $base_minute, $base_second, $base_month, $base_day, $base_year)); }
$value = date($format,mktime ( $base_hour, $base_minute, $base_second, $base_month, $base_day, $base_year));
$outputString .= ($key==$selected)? ' <option value="'.$key.'" selected="selected">'.$value."</option>\n" : ' <option value="'.$key.'">'.$value."</option>\n";
}
return "<select name=\"".$name."\" class=\"$style\" size=\"$selectsize\">\n".$outputString."</select>\n";
}
}
if (! function_exists('bcdiv')) {
function bcdiv($divident, $divisor) // Ganzzahldivision - ERsatz für bcdiv
{
return floor($divident/$divisor);
}
}
if (! function_exists('bcmod')) {
function bcmod($divident, $divisor) // Ganzzahldivisionsmodulo - Eratz für bcmod
{
return $divident - ($divisor*bcdiv($divident,$divisor));
}
}
?>
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