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| function Calendar($params) {
//
// VARIABLES
//
// Global variables
global $_SESSION;
global $_SERVER;
global $_GET;
// Default parameters
$PREFIX = "calendar_";
$CSS_PREFIX = "calendar_";
$DATE_URL = "";
$URL_PARAMETER = "date";
$USE_SESSION = false;
$PRESERVE_URL = true;
$JS = false;
$JS_URL = "";
$FIRST_WEEK_DAY = 1;
$LANGUAGE_CODE = "fr";
// Overwrite parameters with custom values
extract($params);
// Translations for month and day
// include($_SERVER["DOCUMENT_ROOT"]."/".dirname($_SERVER["PHP_SELF"])."/calendar_locales.php");
include("calendar_locales.php");
// Month names
if (isset($MONTHS[$LANGUAGE_CODE])) {
$month_name = $MONTHS[$LANGUAGE_CODE];
} else {
$month_name = $MONTHS["fr"];
}
// Short names of days
if (isset($WEEK_DAYS[$LANGUAGE_CODE])) {
$day_name = $WEEK_DAYS[$LANGUAGE_CODE];
} else {
$day_name = $WEEK_DAYS["fr"];
}
// Current month's name
if (isset($MONTH_HEADER[$LANGUAGE_CODE])) {
$month_header = $MONTH_HEADER[$LANGUAGE_CODE];
} else {
$month_header = $MONTH_HEADER["fr"];
}
//
// FUNCTIONS
//
// This function displays HTML code: if $JS = true, we do not display line
// breaks
if (! function_exists("calendar_display")) {
function calendar_display($text, $JS) {
if ($JS) {
echo "document.writeln('".$text."');\n";
} else {
echo $text."\n";
}
}
}
// This function sets the calendar URL parameter $URL_PARAMETER to $date in
// the given URL $URL. Used for the previous and next arrows of the calendar
// title.
if (! function_exists("calendar_calculate_URL")) {
function calendar_calculate_URL($URL, $URL_PARAMETER, $date, $PRESERVE_URL, $USE_SESSION) {
$URL_components = parse_url($URL);
$new_URL = $URL_components["path"]."?";
$add_SID = $USE_SESSION;
// We retrieve and preserve the current URL parameters if required
if ($PRESERVE_URL && isset($URL_components["query"])) {
parse_str($URL_components["query"], $query_string);
// We build the query string
foreach ($query_string as $param => $value) {
if ($param != $URL_PARAMETER) {
$new_URL .= $param."=".urlencode($value)."&";
}
// If the SID is already there, we do not add it again
if ($USE_SESSION && $param == session_name()) {
$add_SID = false;
}
}
}
// We add the date
$new_URL .= $URL_PARAMETER."=".$date;
// We also add the session ID (SID) if necessary
if ($add_SID && SID != "") {
$new_URL .= "&".SID;
}
return $new_URL;
}
}
// This function calculates the date of the previous month with the mmyyyy
// format
if (! function_exists("calendar_previous_month")) {
function calendar_previous_month($month, $year) {
if ($month == 1) {
$new_month = "12";
$new_year = $year - 1;
} else {
$new_month = (($month > 10)?"":"0").($month - 1);
$new_year = $year;
}
return $new_month.$new_year;
}
}
// This function calculates the date of the next month with the mmyyyy format
if (! function_exists("calendar_next_month")) {
function calendar_next_month($month, $year) {
if ($month == 12) {
$new_month = "01";
$new_year = $year + 1;
} else {
$new_month = (($month < 9)?"0":"").($month + 1);
$new_year = $year;
}
return $new_month.$new_year;
}
}
//
// MAIN LOOP
//
// In the case of JavaScript integration with session, we create the session.
// We are allowed to do that because in JavaScript integration this PHP script
// is not included in any custom page.
if ($JS && $USE_SESSION) {
session_start();
}
// Today's date
$today = date("dmY");
// Month and year to display (gotten from URL)
if (isset($_GET[$PREFIX."date"])) {
if ($_GET[$PREFIX."date"] != "") {
$month = (int)substr($_GET[$PREFIX."date"], 0, 2);
$year = substr($_GET[$PREFIX."date"], 2);
}
}
// Default month to show (if not found in the URL)
if (!isset($month)) {
$month = gmdate("n");
// In the case of session, we must get the session date
if ($USE_SESSION && isset($_SESSION[$PREFIX."month"])) {
$month = $_SESSION[$PREFIX."month"];
}
}
// We put the month in the session if required
if ($USE_SESSION) {
$_SESSION[$PREFIX."month"] = $month;
}
// Default year to show (if not found in the URL)
if (!isset($year)) {
$year = gmdate("Y");
// In the case of session, we must get the session date
if ($USE_SESSION && isset($_SESSION[$PREFIX."year"])) {
$year = $_SESSION[$PREFIX."year"];
}
}
// We put the year in the session if required
if ($USE_SESSION) {
$_SESSION[$PREFIX."year"] = $year;
}
// We display the top of the calendar
if ($JS) {
$URL_page = $JS_URL;
} else {
$URL_page = $_SERVER["REQUEST_URI"];
}
calendar_display("<table class=\"".$CSS_PREFIX."main\">", $JS);
calendar_display(" <tr class=\"".$CSS_PREFIX."title\">", $JS);
calendar_display(" <td class=\"".$CSS_PREFIX."title_left_arrow\"><a href=\"".calendar_calculate_URL($URL_page, $PREFIX."date", calendar_previous_month($month, $year), $PRESERVE_URL, $USE_SESSION)."\" class=\"".$CSS_PREFIX."title_left_arrow_clickable\"><<</a></td>", $JS);
if ($DATE_URL != "") {
calendar_display(" <td class=\"".$CSS_PREFIX."title_month\"><a href=\"".calendar_calculate_URL($DATE_URL, $URL_PARAMETER, (($month < 10)?"0":"").$month.$year, true, $USE_SESSION)."\" class=\"".$CSS_PREFIX."title_month_clickable\">".$month_name[$month - 1]." ".$year."</a></td>", $JS);
} else {
calendar_display(" <td class=\"".$CSS_PREFIX."title_month\">".str_replace("%y", $year, str_replace("%m", $month_name[$month - 1], $month_header))."</td>", $JS);
}
calendar_display(" <td class=\"".$CSS_PREFIX."title_right_arrow\"><a href=\"".calendar_calculate_URL($URL_page, $PREFIX."date", calendar_next_month($month, $year), $PRESERVE_URL, $USE_SESSION)."\" class=\"".$CSS_PREFIX."title_right_arrow_clickable\">>></a></td>", $JS);
calendar_display(" </tr>", $JS);
calendar_display(" <tr>", $JS);
calendar_display(" <td colspan=\"3\">", $JS);
calendar_display(" <table class=\"".$CSS_PREFIX."table\">", $JS);
calendar_display(" <tr>", $JS);
for ($counter = 0; $counter < 7; $counter++) {
calendar_display(" <th>".$day_name[($FIRST_WEEK_DAY + $counter) % 7]."</th>", $JS);
}
calendar_display(" </tr>", $JS);
// We calculate the first day of the month to show
$first_month_day = gmmktime(0, 0, 0, $month, 1, $year);
// We calculate the week day of this first day so that we can determine how
// many days we are far from the first week day
$offset = (7 - ($FIRST_WEEK_DAY % 7 - gmdate("w", $first_month_day))) % 7;
// First day of the calendar
$current_day = $first_month_day - 3600 * 24 * $offset;
// We are going to display a table => 2 nested loops
// How many rows in the calendar?
$row_number = ceil((gmdate("t", $first_month_day) + $offset) / 7);
for ($row = 1; $row <= $row_number; $row++) {
// The first loop displays the rows
calendar_display(" <tr>", $JS);
// The second loop displays the days (as columns)
for ($column = 1; $column <= 7; $column++) {
// Day currently displayed
$day = gmdate("j", $current_day);
// If it is saturday or sunday, we use the "weekend" style
if (gmdate("w", $current_day) == 6 || gmdate("w", $current_day) == 0) {
$table_cell = " <td class=\"".$CSS_PREFIX."weekend\">";
} else {
$table_cell = " <td>";
}
// We display the current day
$CSS_class = "";
// Clickable days?
if ($DATE_URL != "") {
if (gmdate("dmY", $current_day) == $today) {
$CSS_class = $CSS_PREFIX."today_clickable";
} else {
// Days not in the current month with CSS clas "other_month"
if (gmdate("n", $current_day) != $month) {
$CSS_class = $CSS_PREFIX."other_month_clickable";
} else {
$CSS_class = $CSS_PREFIX."day_clickable";
}
}
$table_cell .= "<a href=\"".calendar_calculate_URL($DATE_URL, $URL_PARAMETER, gmdate("dmY", $current_day), true, $USE_SESSION)."\" class=\"".$CSS_class."\">".$day."</a>";
} else {
// Days not in the current month with CSS clas "other_month"
if (gmdate("n", $current_day) != $month) {
$CSS_class = $CSS_PREFIX."other_month";
}
// If we are displaying today's day, CSS class "today"
if (gmdate("dmY", $current_day) == $today) {
$CSS_class = $CSS_PREFIX."today";
}
if ($CSS_class == "") {
$table_cell .= $day;
} else {
$table_cell .= "<span class=\"".$CSS_class."\">".$day."</span>";
}
}
// End of day cell
calendar_display($table_cell."</td>", $JS);
// Next day
$current_day += 3600 * 24 + 1;
}
// End of rows
calendar_display(" </tr>", $JS);
}
calendar_display(" </table>", $JS);
calendar_display(" </td>", $JS);
calendar_display(" </tr>", $JS);
calendar_display("</table>", $JS);
}
?> |
23/01/2007, 12h45
Gérer un calendrier d'événements
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