我正在为 fullcalendar 开发一个经常性事件后端，我遇到了一个奇怪的问题。
我的事件是在名为 events.php 的页面上计算的。日历显示在 index.php 上并从 events.php 调用事件。我在 events.php 上的函数为重复事件输出正确的字符串，但 index.php 上的日历只显示每次重复事件中的第一个事件。但是，如果我复制数组生成的字符串并将其直接粘贴到 events.php 页面并注释掉 render_fccalendar_events(); 函数并在生成字符串的 events.php 的末尾，日历将正确显示所有重复发生的事件。从我可以看到函数的输出和我粘贴到页面中的内容来看，index.php 上的日历完全相同。显然存在一些差异，因为它不会使它们相同。知道这里发生了什么吗？
这是 events.php 代码：
<?php require_once('../../Connections/local_i.php');
require_once('../../webassist/mysqli/rsobj.php');
global $wpdb;
$wpdb = new WA_MySQLi_RS("wpdb",$local_i,0);
$wpdb->setQuery("SELECT wpdb.id, wpdb.location, wpdb.name, wpdb.description, wpdb.recurrence, wpdb.start_date, wpdb.end_date, wpdb.repeat, wpdb.repeat_desk, wpdb.occurrence, wpdb.occurrence_desk FROM wpdb");
$wpdb->execute();
ini_set('display_errors', '0');
function render_fccalendar_events() {
$_POST['start'] = (isset($_POST['start']) ? $_POST['start'] : strtotime('2014-09-01'));
$_POST['end'] = (isset($_POST['end']) ? $_POST['end'] : strtotime('2014-09-30'));
$start = date('Y-m-d',$_POST['start']);
$end = date('Y-m-d', $_POST['end']);
$readonly = (isset($_POST['readonly'])) ? true : false;
$events = fcdb_query_events($start, $end);
render_json(process_events($events, $start, $end, $readonly));
}
function process_events($events, $start, $end, $readonly) {
if ($events) {
$output = array();
foreach ($events as $event) {
$event->view_start = $start;
$event->view_end = $end;
$event = process_event($event, $readonly, true);
if (is_array($event)) {
foreach ($event as $repeat) {
array_push($output, $repeat);
}
} else {
array_push($output, $event);
}
}
return $output;
}
}
function process_event($input, $readonly = false, $queue = false) {
$output = array();
if ($repeats = generate_repeating_event($input)) {
foreach ($repeats as $repeat) {
array_push($output, generate_event($repeat));
}
} else {
array_push($output, generate_event($input));
}
if ($queue) {
return $output;
}
render_json($output);
}
function generate_event($input) {
$output = array(
'id' => $input->id,
'title' => $input->name,
'start' => $input->start_date,
'end' => $input->end_date,
'allDay' => ($input->allDay) ? true : false,
//'className' => "cat{$repeats}",
'editable' => true,
'repeat_i' => $input->repeat_int,
'repeat_f' => $input->repeat_freq,
'repeat_e' => $input->repeat_end
);
return $output;
}
function generate_repeating_event($event) {
$repeat_desk = json_decode($event->repeat_desk);
if ($event->repeat == "daily") {
$event->repeat_int =0;
$event->repeat_freq = $repeat_desk->every_day;
}
if ($event->repeat == "monthly") {
$event->repeat_int =2;
$event->repeat_freq = $repeat_desk->every_month;
}
if ($event->repeat == "weekly") {
$event->repeat_int =1;
$event->repeat_freq = $repeat_desk->every_week;
}
if ($event->repeat == "year") {
$event->repeat_int =3;
$event->repeat_freq = $repeat_desk->every_year;
}
if ($event->occurrence == "after-no-of-occurrences") {
if($event->repeat_int == 0){
$ext = "days";
}
if($event->repeat_int == 1){
$ext = "weeks";
}
if($event->repeat_int == 2){
$ext = "months";
}
if($event->repeat_int == 3){
$ext = "years";
}
$event->repeat_end = date('Y-m-d',strtotime("+" . $event->repeat_int . " ".$ext));
} else if ($event->occurrence == "no-end-date") {
$event->repeat_end = "2023-04-13";
} else if ($event->occurrence == "end-by-end-date") {
$event->repeat_end = $event->end_date;
}
if ($event->repeat_freq) {
$event_start = strtotime($event->start_date);
$event_end = strtotime($event->end_date);
$repeat_end = strtotime($event->repeat_end) + 86400;
$view_start = strtotime($event->view_start);
$view_end = strtotime($event->view_end);
$repeats = array();
while ($event_start < $repeat_end) {
if ($event_start >= $view_start && $event_start <= $view_end) {
$event = clone $event; // clone event details and override dates
$event->start_date = date('Y-m-d', $event_start);
$event->end_date = date('Y-m-d', $event_end);
array_push($repeats, $event);
}
$event_start = get_next_date($event_start, $event->repeat_freq, $event->repeat_int);
$event_end = get_next_date($event_end, $event->repeat_freq, $event->repeat_int);
}
return $repeats;
}
return false;
}
function get_next_date($date, $freq, $int) {
if ($int == 0)
return strtotime("+" . $freq . " days", $date);
if ($int == 1)
return strtotime("+" . $freq . " weeks", $date);
if ($int == 2)
return get_next_month($date, $freq);
if ($int == 3)
return get_next_year($date, $freq);
}
function get_next_month($date, $n = 1) {
$newDate = strtotime("+{$n} months", $date);
// adjustment for events that repeat on the 29th, 30th and 31st of a month
if (date('j', $date) !== (date('j', $newDate))) {
$newDate = strtotime("+" . $n + 1 . " months", $date);
}
return $newDate;
}
function get_next_year($date, $n = 1) {
$newDate = strtotime("+{$n} years", $date);
// adjustment for events that repeat on february 29th
if (date('j', $date) !== (date('j', $newDate))) {
$newDate = strtotime("+" . $n + 3 . " years", $date);
}
return $newDate;
}
function render_json($output) {
header("Content-Type: application/json");
echo json_encode(cleanse_output($output));
exit;
}
function cleanse_output($output) {
if (is_array($output)) {
array_walk_recursive($output, create_function('&$val', '$val = trim(stripslashes($val));'));
} else {
$output = stripslashes($output);
}
return $output;
}
function fcdb_query_events($start, $end) {
global $wpdb;
$result = array();
// $limit = ($limit) ? " LIMIT {$limit}" : "";
while(!$wpdb->atEnd()) {
$item = new stdClass;
$item->id = $wpdb->getColumnVal('id');
$item->location = $wpdb->getColumnVal('location');
$item->name = $wpdb->getColumnVal('name');
$item->description = $wpdb->getColumnVal('description');
$item->recurrence = $wpdb->getColumnVal('recurrence');
$item->start_date = $wpdb->getColumnVal('start_date');
$item->end_date = $wpdb->getColumnVal('end_date');
$item->repeat = $wpdb->getColumnVal('repeat');
$item->repeat_desk = $wpdb->getColumnVal('repeat_desk');
$item->occurrence = $wpdb->getColumnVal('occurrence');
$item->occurrence_desk = $wpdb->getColumnVal('occurrence_desk');
$item->allDay = false;
$result[] = $item;
$wpdb->moveNext();
}
$wpdb->moveFirst(); //return RS to first record
return return_result($result);
}
function return_result($result) {
if ($result === false) {
global $wpdb;
$this->log($wpdb->print_error());
return false;
}
return $result;
}
render_fccalendar_events();?>
这是 events.php 页面的输出
[{"id":"1","title":"test event","start":"2014-09-01","end":"2014-09-01","allDay":"","editable":"1","repeat_i":"1","repeat_f":"3","repeat_e":"2023-04-13"},{"id":"1","title":"test event","start":"2014-09-22","end":"2014-09-22","allDay":"","editable":"1","repeat_i":"1","repeat_f":"3","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-04","end":"2014-09-04","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-06","end":"2014-09-06","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-08","end":"2014-09-08","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-10","end":"2014-09-10","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-12","end":"2014-09-12","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-14","end":"2014-09-14","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-16","end":"2014-09-16","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-18","end":"2014-09-18","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-20","end":"2014-09-20","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-22","end":"2014-09-22","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-24","end":"2014-09-24","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-26","end":"2014-09-26","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-28","end":"2014-09-28","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"3","title":"test 2","start":"2014-10-04 13:00:00","end":"2014-10-04 14:00:00","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"}]
这是调用 events.php 输出的 index.php 代码：
<script type="text/javascript">
$(document).ready(function() {
$('#calendar').fullCalendar({
header: {
left: 'prev,next today',
center: 'title',
right: 'month,agendaWeek,agendaDay'
},
defaultDate: '<?php echo date('Y-m-d'); ?>',
editable: true,
events: {
url: 'events.php',
type: 'POST'
},
error: function() {
alert('there was an error while fetching events!');
}
});
});
</script>