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date_api.php
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date_api.php
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<?php
# MantisBT - A PHP based bugtracking system
# MantisBT 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 2 of the License, or
# (at your option) any later version.
#
# MantisBT 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 MantisBT. If not, see <http://www.gnu.org/licenses/>.
/**
* Date API
*
* @package CoreAPI
* @subpackage DateAPI
* @copyright Copyright (C) 2000 - 2002 Kenzaburo Ito - kenito@300baud.org
* @copyright Copyright (C) 2002 - 2011 MantisBT Team - mantisbt-dev@lists.sourceforge.net
* @link http://www.mantisbt.org
*
* @uses config_api.php
* @uses constant_inc.php
* @uses helper_api.php
* @uses html_api.php
* @uses lang_api.php
*/
require_api( 'config_api.php' );
require_api( 'constant_inc.php' );
require_api( 'helper_api.php' );
require_api( 'html_api.php' );
require_api( 'lang_api.php' );
/**
* Keeps track of whether the external files required for jscalendar to work
* have already been included in the output sent to the client. jscalendar
* will not work correctly if it is included multiple times on the same page.
* @global bool $g_jscalendar_included_already
*/
$g_calendar_already_imported = false;
/**
* checks if date is null
* @param int $p_date
* @return bool
* @access public
*/
function date_is_null( $p_date ) {
return $p_date == date_get_null();
}
/**
* gets null date
* @return int
* @access public
*/
function date_get_null() {
return 1;
}
$g_cache_timezone = array();
/**
* set new timezone
* @return null
* @access public
*/
function date_set_timezone( $p_timezone ) {
global $g_cache_timezone;
array_push( $g_cache_timezone, date_default_timezone_get() );
if( !date_default_timezone_set( $p_timezone ) ) {
// unable to set timezone
trigger_error( ERROR_UPDATING_TIMEZONE, WARNING );
}
}
/**
* restore previous timezone
* @return null
* @access public
*/
function date_restore_timezone( ) {
global $g_cache_timezone;
$t_timezone = array_pop( $g_cache_timezone );
if( $t_timezone === null ) {
return;
}
if( !date_default_timezone_set( $t_timezone ) ) {
// unable to set timezone
trigger_error( ERROR_UPDATING_TIMEZONE, WARNING );
}
}
/**
*
* @param int $p_month
* @return null
* @access public
*/
function print_month_option_list( $p_month = 0 ) {
for( $i = 1;$i <= 12;$i++ ) {
$month_name = date( 'F', mktime( 0, 0, 0, $i, 1, 2000 ) );
if( $i == $p_month ) {
echo "<option value=\"$i\" selected=\"selected\">" . lang_get( 'month_' . utf8_strtolower($month_name)) . "</option>";
} else {
echo "<option value=\"$i\">" . lang_get( 'month_' . utf8_strtolower($month_name)) . "</option>";
}
}
}
/**
*
*
* @param int $p_month
* @return null
* @access public
*/
function print_numeric_month_option_list( $p_month = 0 ) {
for( $i = 1;$i <= 12;$i++ ) {
if( $i == $p_month ) {
echo "<option value=\"$i\" selected=\"selected\">$i</option>";
} else {
echo "<option value=\"$i\">$i</option>";
}
}
}
/**
*
* @param int $p_day
* @return null
* @access public
*/
function print_day_option_list( $p_day = 0 ) {
for( $i = 1;$i <= 31;$i++ ) {
if( $i == $p_day ) {
echo "<option value=\"$i\" selected=\"selected\">$i</option>";
} else {
echo "<option value=\"$i\">$i</option>";
}
}
}
/**
*
* @param int $p_year
* @return null
* @access public
*/
function print_year_option_list( $p_year = 0 ) {
$current_year = date( "Y" );
for( $i = $current_year;$i > 1999;$i-- ) {
if( $i == $p_year ) {
echo "<option value=\"$i\" selected=\"selected\">$i</option>";
} else {
echo "<option value=\"$i\">$i</option>";
}
}
}
/**
*
* @param int $p_year
* @param int $p_start
* @param int $p_end
* @return null
* @access public
*/
function print_year_range_option_list( $p_year = 0, $p_start = 0, $p_end = 0 ) {
$t_current = date( 'Y' );
$t_forward_years = config_get( 'forward_year_count' );
$t_start_year = $p_start;
if( $t_start_year == 0 ) {
$t_backward_years = config_get( 'backward_year_count' );
$t_start_year = $t_current - $t_backward_years;
}
if(( $p_year < $t_start_year ) && ( $p_year != 0 ) ) {
$t_start_year = $p_year;
}
$t_end_year = $p_end;
if( $t_end_year == 0 ) {
$t_end_year = $t_current + $t_forward_years;
}
if( $p_year > $t_end_year ) {
$t_end_year = $p_year + $t_forward_years;
}
for( $i = $t_start_year;$i <= $t_end_year;$i++ ) {
if( $i == $p_year ) {
echo "<option value=\"$i\" selected=\"selected\">$i</option>";
} else {
echo "<option value=\"$i\">$i</option>";
}
}
}
/**
*
* @param string $p_name
* @param string $p_format
* @param int $p_date
* @param bool $p_default_disable
* @param bool $p_allow_blank
* @param int $p_year_start
* @param int $p_year_end
* @return null
* @access public
*/
function print_date_selection_set( $p_name, $p_format, $p_date = 0, $p_default_disable = false, $p_allow_blank = false, $p_year_start = 0, $p_year_end = 0 ) {
$t_chars = preg_split( '//', $p_format, -1, PREG_SPLIT_NO_EMPTY );
if( $p_date != 0 ) {
$t_date = preg_split( '/-/', date( 'Y-m-d', $p_date ), -1, PREG_SPLIT_NO_EMPTY );
} else {
$t_date = array(
0,
0,
0,
);
}
$t_disable = '';
if( $p_default_disable == true ) {
$t_disable = ' disabled="disabled"';
}
$t_blank_line = '';
if( $p_allow_blank == true ) {
$t_blank_line = "<option value=\"0\"></option>";
}
foreach( $t_chars as $t_char ) {
if( strcmp( $t_char, "M" ) == 0 ) {
echo "<select ", helper_get_tab_index(), " name=\"" . $p_name . "_month\"$t_disable>";
echo $t_blank_line;
print_month_option_list( $t_date[1] );
echo "</select>\n";
}
if( strcmp( $t_char, "m" ) == 0 ) {
echo "<select ", helper_get_tab_index(), " name=\"" . $p_name . "_month\"$t_disable>";
echo $t_blank_line;
print_numeric_month_option_list( $t_date[1] );
echo "</select>\n";
}
if( strcasecmp( $t_char, "D" ) == 0 ) {
echo "<select ", helper_get_tab_index(), " name=\"" . $p_name . "_day\"$t_disable>";
echo $t_blank_line;
print_day_option_list( $t_date[2] );
echo "</select>\n";
}
if( strcasecmp( $t_char, "Y" ) == 0 ) {
echo "<select ", helper_get_tab_index(), " name=\"" . $p_name . "_year\"$t_disable>";
echo $t_blank_line;
print_year_range_option_list( $t_date[0], $p_year_start, $p_year_end );
echo "</select>\n";
}
}
}