<?
/*
* Class to manipulate date and time on the form.
*
* Author: Viatcheslav Ivanov, E-Witness Inc., Canada;
* mail: ivanov@e-witness.ca, v_iv@hotmail.com;
* web: www.e-witness.ca; www.coolwater.ca; www.strongpost.net;
* version: 1.40 /03.14.2002
*
*/
if ( !defined("DATETIMECLASS_INC") ) {
define("DATETIMECLASS_INC",1);
class DATETIME {
var $current_names = array( 'yearname' => 'year',
'monthname' => 'month',
'dayname' => 'day',
'hourname' => 'hour',
'ampmname' => 'ampm',
'minutename' => 'minute',
'secondname' => 'second' );
var $current_selected = array();
function DATETIME() {
// initialization
}
// set current name of select on the form
// $keyname: "yearname", "monthname", "dayname", "hourname", "ampmname", "minutename", "secondname"
function set_selectname($keyname, $new_name) {
if($new_name) $this->current_names[$keyname] = $new_name;
}
// set current names of date selects (month, day, year) on the form (wrapper easy to use)
function set_datename($new_name_month = "", $new_name_day = "", $new_name_year = "") {
$this->set_selectname("monthname", $new_name_month);
$this->set_selectname("dayname", $new_name_day);
$this->set_selectname("yearname", $new_name_year);
}
// set current names of time selects (hour, minute, second, am-pm) on the form (wrapper easy to use)
function set_timename($new_name_hour = "", $new_name_minute = "", $new_name_second = "", $new_name_ampm = "") {
$this->set_selectname("hourname", $new_name_hour);
$this->set_selectname("minutename", $new_name_minute);
$this->set_selectname("secondname", $new_name_second);
$this->set_selectname("ampmname", $new_name_ampm);
}
// set current names of date and time selects on the form (wrapper easy to use)
function set_datetimename($new_name_month = "", $new_name_day = "", $new_name_year = "", $new_name_hour = "", $new_name_minute = "", $new_name_second = "", $new_name_ampm = "") {
$this->set_datename($new_name_month, $new_name_day, $new_name_year);
$this->set_timename($new_name_hour, $new_name_minute, $new_name_second, $new_name_ampm);
}
// set selected values by string variable date or(and) time format
// use it for initialization by info from different sources (for example DB)
// NOTE: it will return TRUE with date range "Dec 31 1969" and " Jan 18 2038", otherwise FALSE
function set_datetime_byvar($datetimemix) {
$timestamp = strtotime($datetimemix);
if ($timestamp != -1) {
$this->current_selected['yearname'] = date("Y", $timestamp);
$this->current_selected['monthname'] = date("n", $timestamp);
$this->current_selected['dayname'] = date("j", $timestamp);
$this->current_selected['hourname'] = date("G", $timestamp); // keep internal 24 hour cycle
$this->current_selected['minutename'] = (string)((int)date("i", $timestamp));
$this->current_selected['secondname'] = (string)((int)date("s", $timestamp));
return true;
} else {
return false;
}
}
// set selected values by components of date
// use it for initialization when date is out of range "Dec 31 1969" and " Jan 18 2038"
// and you can't use set_datetime_byvar() method
function set_datetime_bycomponents($new_month = "", $new_day = "", $new_year = "", $new_hour = "", $new_minute = "", $new_second = "", $new_ampm = "") {
if ($this->isit_numeric($new_year) && (int)$new_year > 0 && (int)$new_year <= 9999)
$this->current_selected['yearname'] = $new_year;
if ($this->isit_numeric($new_month) && (int)$new_month > 0 && (int)$new_month <= 12)
$this->current_selected['monthname'] = $new_month;
if ($this->isit_numeric($new_day) && (int)$new_day > 0 && (int)$new_day <= 31)
$this->current_selected['dayname'] = $new_day;
if ($new_ampm && (strtolower($new_ampm) == "am" || strtolower($new_ampm) == "pm"))
$this->current_selected['ampmname'] = strtolower($new_ampm);
if ($this->isit_numeric($new_hour) && (int)$new_hour >= 0 && (int)$new_hour < 24) {
$this->current_selected['hourname'] = $new_hour;
$this->current_selected['hourname'] = $this->hours12to24();
}
if ($this->isit_numeric($new_minute) && (int)$new_minute >= 0 && (int)$new_minute < 60)
$this->current_selected['minutename'] = $new_minute;
if ($this->isit_numeric($new_second) && (int)$new_second >= 0 && (int)$new_second < 60)
$this->current_selected['secondname'] = $new_second;
}
// set selected values by global variables
// $globalscope: "GLOBALS", "HTTP_POST_VARS", "HTTP_GET_VARS", "HTTP_COOKIE_VARS", "HTTP_SESSION_VARS"
function set_datetime_byglobal($globalscope = "GLOBALS") {
global $$globalscope;
reset ($this->current_names);
while (list($key,$val) = each($this->current_names))
$this->current_selected[$key] = ${$globalscope}[$val];
$this->current_selected['hourname'] = $this->hours12to24();
}
// return string with input type select
function get_select($select_name, $select_array_values, $selected_value = "", $select_first_line = "", $select_style = "", $select_size = 1) {
$str_select = "";
$str_select.= "\n<select name=\"".$select_name."\" size=".$select_size;
$str_select.= ($select_style)? " ".$select_style.">\n" : ">\n";
$str_select.= ($select_first_line)? "<option value=\"\">".$select_first_line."\n" : "";
while(list($key,$val) = each($select_array_values))
{
$str_select.= "<option value=\"".$key."\"";
$str_select.= ($this->isit_numeric($selected_value) && $key == $selected_value) ? " SELECTED>" : ">";
$str_select.= $val."\n";
}
$str_select.= "</select>\n";
return $str_select;
}
// return select with years or text with selected year
// year_syle may has values : ldigit (4 digit year), sdigit (2 last digit year)
function get_select_years($year_style = "ldigit", $year_from = "", $year_to = "", $select_first_line = "", $select_style = "", $select_size = 1, $textonly = 0) {
if ($year_to == "") $year_to = date("Y");
if ($year_from == "") $year_from = $year_to - 10;
if ($year_from <= $year_to)
for ($i = $year_from; $i <= $year_to; $i++)
$arr_years[$i] = ($year_style == "ldigit")? $i : substr($i, -2);
else
for ($i = $year_from; $i >= $year_to; $i--)
$arr_years[$i] = ($year_style == "ldigit")? $i : substr($i, -2);
if ($textonly)
return $arr_years[$this->current_selected["yearname"]];
else
return $this->get_select($this->current_names["yearname"], $arr_years, $this->current_selected["yearname"], $select_first_line, $select_style, $select_size);
}
// return select with months or text with selected month
// month_style may has values: digit (number of month), lword (3 letter abbreviation), sword (full word)
function get_select_months($leading_zeros = 1, $month_style = "digit", $select_first_line = "", $select_style = "", $select_size = 1, $textonly = 0) {
for ($i = 1; $i <= 12; $i++)
if ($month_style == "lword")
$arr_months[$i] = strftime("%B", mktime( 0,0,0,$i,1,2000 ));
elseif ($month_style == "sword")
$arr_months[$i] = strftime("%b", mktime( 0,0,0,$i,1,2000 ));
else
$arr_months[$i] = ($leading_zeros && $i < 10)? "0".$i : $i;
if ($textonly)
return $arr_months[$this->current_selected["monthname"]];
else
return $this->get_select($this->current_names["monthname"], $arr_months, $this->current_selected["monthname"], $select_first_line, $select_style, $select_size);
}
// return select with days or text with selected day
function get_select_days($leading_zeros = 1, $select_first_line = "", $select_style = "", $select_size = 1, $textonly = 0) {
for ($i = 1; $i <= 31; $i++)
$arr_days[$i] = ($leading_zeros && $i < 10)? "0".$i : $i;
if ($textonly)
return $arr_days[$this->current_selected["dayname"]];
else
return $this->get_select($this->current_names["dayname"], $arr_days, $this->current_selected["dayname"], $select_first_line, $select_style, $select_size);
}
// return select with hours or text with selected hour
// ONLY if use 12 hours cycle, use select am - pm !
function get_select_hours($leading_zeros = 1, $hour_style = 24, $select_first_line = "", $select_style = "", $select_size = 1, $textonly = 0) {
if ($hour_style == 12) {
for ($i = 1; $i <= 12; $i++)
$arr_hours[$i] = ($leading_zeros && $i < 10)? "0".$i : $i;
if ($this->isit_numeric($this->current_selected["hourname"])) {
if ($this->current_selected["hourname"] > 0 && $this->current_selected["hourname"] <= 12) {
$temp_selected = $this->current_selected["hourname"];
$this->current_selected["ampmname"] = ($this->current_selected["hourname"] == 12)? "pm" : "am";
} elseif ($this->current_selected["hourname"] > 12) {
$temp_selected = $this->current_selected["hourname"] - 12;
$this->current_selected["ampmname"] = "pm";
} else {
$temp_selected = 12;
$this->current_selected["ampmname"] = "am";
}
}
} else {
for ($i = 0; $i < 24; $i++)
$arr_hours[$i] = ($leading_zeros && $i < 10)? "0".$i : $i;
$temp_selected = $this->current_selected["hourname"];
}
if ($textonly)
return $arr_hours[$temp_selected];
else
return $this->get_select($this->current_names["hourname"], $arr_hours, $temp_selected, $select_first_line, $select_style, $select_size);
}
// return select with am - pm options. Use ONLY with 12 hours cycle select
function get_select_ampm($select_first_line = "", $select_style = "", $select_size = 1) {
$str_select = "";
$str_select.= "\n<select name=\"".$this->current_names["ampmname"]."\" size=".$select_size;
$str_select.= ($select_style)? " style=\"".$select_style."\">\n" : ">\n";
$str_select.= ($select_first_line)? "<option value=\"\">".$select_first_line."\n" : "";
$str_select.= "<option value=\"am\"";
$str_select.= ($this->current_selected["ampmname"] == "am") ? " SELECTED>am\n" : ">am\n";
$str_select.= "<option value=\"pm\"";
$str_select.= ($this->current_selected["ampmname"] == "pm") ? " SELECTED>pm\n" : ">pm\n";
$str_select.= "</select>\n";
return $str_select;
}
// return select with minutes or text with selected minute
function get_select_minutes($leading_zeros = 1, $select_first_line = "", $select_style = "", $select_size = 1, $textonly = 0) {
for ($i = 0; $i < 60; $i++)
$arr_minutes[$i] = ($leading_zeros && $i < 10)? "0".$i : $i;
if ($textonly)
return $arr_minutes[$this->current_selected["minutename"]];
else
return $this->get_select($this->current_names["minutename"], $arr_minutes, $this->current_selected["minutename"], $select_first_line, $select_style, $select_size);
}
// return select with seconds or text with selected second
function get_select_seconds($leading_zeros = 1, $select_first_line = "", $select_style = "", $select_size = 1, $textonly = 0) {
for ($i = 0; $i < 60; $i++)
$arr_seconds[$i] = ($leading_zeros && $i < 10)? "0".$i : $i;
if ($textonly)
return $arr_seconds[$this->current_selected["secondname"]];
else
return $this->get_select($this->current_names["secondname"], $arr_seconds, $this->current_selected["secondname"], $select_first_line, $select_style, $select_size);
}
// return date in format: month/day/year by information from the form
function get_date_entered() {
$str_ret = "";
if (count($this->current_selected))
if ($this->current_selected["monthname"] || $this->current_selected["dayname"] || $this->current_selected["yearname"]) {
$str_ret = ($this->current_selected["monthname"])? $this->current_selected["monthname"]."/" : "__/";
$str_ret.= ($this->current_selected["dayname"])? $this->current_selected["dayname"]."/" : "__/";
$str_ret.= ($this->current_selected["yearname"])? $this->current_selected["yearname"] : "__";
}
return $str_ret;
}
// return time in format hour:minute:second by information from the form
function get_time_entered() {
$str_ret = "";
if (count($this->current_selected))
if ($this->isit_numeric($this->current_selected["hourname"]) || $this->isit_numeric($this->current_selected["minutename"]) || $this->isit_numeric($this->current_selected["secondname"])) {
$str_ret = ($this->isit_numeric($this->current_selected["hourname"]))? $this->current_selected["hourname"].":" : "__:";
$str_ret.= ($this->isit_numeric($this->current_selected["minutename"]))? $this->get_select_minutes(1, "", "", 1, 1) : "__";
$str_ret.= ($this->isit_numeric($this->current_selected["secondname"]))? ":".$this->get_select_seconds(1, "", "", 1, 1) : "";
}
return $str_ret;
}
// return unix timestamp by information from the form
// NOTE: it will return -1 if timestamp out of range "Dec 31 1969" and " Jan 18 2038"
function get_timestamp_entered() {
return mktime($this->current_selected["hourname"], $this->current_selected["minutename"], $this->current_selected["secondname"], $this->current_selected["monthname"], $this->current_selected["dayname"], $this->current_selected["yearname"]);
}
// return error message by date entered
function get_date_error() {
$err_msg = "";
if (count($this->current_selected))
if ($this->current_selected["yearname"] || $this->current_selected["monthname"] || $this->current_selected["dayname"])
if ($this->current_selected["yearname"] && $this->current_selected["monthname"] && $this->current_selected["dayname"]) {
if (!checkdate($this->current_selected["monthname"], $this->current_selected["dayname"], $this->current_selected["yearname"]))
$err_msg = "Date ".$this->get_date_entered()." is incorrect";
} else {
$err_msg = "Date ".$this->get_date_entered()." is incomplete";
}
return $err_msg;
}
// return true if date entered is empty
function is_date_empty() {
$flag_ret = true;
if (count($this->current_selected))
if ($this->current_selected["yearname"] || $this->current_selected["monthname"] || $this->current_selected["dayname"])
$flag_ret = false;
return $flag_ret;
}
// private function to add to PHP3 is_numeric functionality
function isit_numeric($anystring) {
return (string)((int)$anystring) == (string)$anystring;
}
// private function correct time from 12 am-pm hours to 24 hours cycle
function hours12to24() {
if ($this->current_selected["ampmname"] == "pm") {
if ($this->current_selected["hourname"] < 12) return 12 + $this->current_selected["hourname"];
elseif ($this->current_selected["hourname"] >= 12) return $this->current_selected["hourname"];
} elseif ($this->current_selected["ampmname"] == "am") {
if ($this->current_selected["hourname"] < 12 || $this->current_selected["hourname"] > 12) return $this->current_selected["hourname"];
elseif ($this->current_selected["hourname"] == 12) return 0;
} else {
return $this->current_selected["hourname"];
}
}
}
} // if ( !defined("DATETIMECLASS_INC") )
?>
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