Php Codeigniter日历未显示正确的数据，设置的限制不起作用

我正在使用CodeIgniter库

我有两个从数据库中获取日历数据的表

事件表

额外事件表

问题是，我有两个foreach循环，第二个foreach循环

$query2->result\u array（）

它不允许我从数据库表

extra\u events

中获取每天的第一个事件，我还试图从extra events表中设置限制，但不起作用

从

extra_events

表

范例

Test 2 | Example 2
       | Example 3

它应该产生

Test 1 | Example 1 <!-- Missing
Test 2 | Example 2
       | Example 3

---

test1 |示例1您可以将foreach限制为仅获取2个事件

限制get_events（）函数中的foreach循环

public function get_events($year, $month) {
        $calendar = array();

        $this->db->where('year', $year);
        $this->db->where('month', $month);
        $query = $this->db->get('events');

        $results = $query->result_array();

        $i = 0;
        foreach ($results as $event) {
            if ($i < 2) {     // getting / fetching / extracting value from foreach for 2 times only
                if (array_key_exists($event['day'], $calendar)) {

                    $calendar[$event['day']] = $calendar[$event['day']] . '
                <hr/>

                <div class="text-center">
                <span class="label label-info">New</span>
                </div>
                <br/>
                <div class="clearfix">
                <div class="pull-left">
                <ul class="list-unstyled text-center">
                <li >'
                            . word_limiter(anchor(base_url('report/events/' . $year . '/' . $month . '/?event_id=' . $event['events_id']), $event['event']), 4) . '
                </li>
                </ul>
                </div>
                <div class="pull-right">
                <form id="form-event" action="' . base_url('dashboard/calendar') . '" class="form-inline" method="post" enctype="multipart/form-data" onsubmit="return confirm(\'Are you sure you want to remove this!\')";>
                <input type="hidden" name="delete_id" value="' . $event['events_id'] . '">
                <a href="' . base_url('report/events/edit' . '/?event_id=' . $event['events_id']) . '" role="button" class="btn btn-primary"><i class="fa fa-pencil"></i></a>
                <button type"submit" class="btn btn-danger"><i class="fa fa-trash"></i></button>
                </form>
                </div>
                </div>';
                } else {

                    $calendar[$event['day']] = '
                <div class="text-center">
                <span class="label label-info">New</span>
                </div>
                <br/>
                <div class="clearfix">
                <div class="pull-left">
                <ul class="list-unstyled text-center">
                <li >'
                            . word_limiter(anchor(base_url('report/events/' . $year . '/' . $month . '/?event_id=' . $event['events_id']), $event['event']), 4) . '
                </li>
                </ul>
                </div>
                <div class="pull-right">
                <form id="form-event" action="' . base_url('dashboard/calendar') . '" class="form-inline" method="post" enctype="multipart/form-data" onsubmit="return confirm(\'Are you sure you want to remove this!\')";>
                <input type="hidden" name="delete_id" value="' . $event['events_id'] . '">
                <a href="' . base_url('report/events/edit' . '/?event_id=' . $event['events_id']) . '" role="button" class="btn btn-primary"><i class="fa fa-pencil"></i></a>
                <button type"submit" class="btn btn-danger"><i class="fa fa-trash"></i></button>
                </form>
                </div>
                </div>
                ';
                }
                $i++;
            }
        }

        return $calendar;
    }

公共函数获取事件（$year，$month）{
$calendar=array（）；
$this->db->where（'year'，$year）；
$this->db->where（'month'，$month）；
$query=$this->db->get（'events'）；
$results=$query->result_array（）；
$i=0；
foreach（$results as$event）{
如果（$i<2）{//仅从foreach获取/获取/提取值2次
如果（数组键存在（$event['day'，$calendar））{
$calendar[$event['day']=$calendar[$event['day']].'

新的



'
.word_limitor（锚定（基本url（'report/events/'.$year./'.$month./'.$event.'./'.$id='.$event['events\u id']），$event['event']），4）。'


';
}否则{
$calendar[$event['day']]='
新的



'
.word_limitor（锚定（基本url（'report/events/'.$year./'.$month./'.$event.'./'.$id='.$event['events\u id']），$event['event']），4）。'


';
}
$i++；
}
}
返回$calendar；
}
现在解决
我必须创建两个表，然后在模型函数中添加这一行

$calendar[$event['day']]='
'$事件[‘事件’]

下面第一个foreach用于主事件，然后任何其他额外事件使用第二个foreach和数组键exists

这现在也让我可以控制现在额外显示的行数
每个循环的事件

公共函数获取日历事件（$year，$month）{
$calendar=array（）；
$events=$this->get_events（$year，$month）；
foreach（$events作为$event）{
//添加了主日历事件的行
$calendar[$event['day']='
'。$event['event']；
//将主事件id传递给extra_events get函数
$extra_events=$this->get_extra_events（$event['events\u id'）；
//检查side foreach循环中是否存在额外事件的数组键
foreach（$extra\u事件作为$extra\u事件）{
如果（数组键存在（$extra_event['day'，$calendar））{
$calendar[$extra_event['day']]=$calendar[$extra_event['day'].
。$extra_event['event']；
}否则{
$calendar[$extra_event['day']]=$extra_event['event']；
}
}
}
返回$calendar；
}

日历型号

<?php

class Model_calendar extends CI_Model {

    public function add_event() {
        $data = array(
            'year' => $this->input->post('year'),
            'month' => ($this->input->post('month') > 10) ? $this->input->post('month') : '0' . $this->input->post('month'),
            'day' => $this->input->post('day'),
            'date' => $this->input->post('year') .'-'. $this->input->post('month') .'-'. $this->input->post('day'),
            'event' => $this->input->post('event'),
            'date_added' => mdate('%Y-%m-%d %H:%i:%s', now())
       );

       $this->db->insert($this->db->dbprefix . 'events', $data);
    }

    public function add_extra_event() {
        $data = array(
            'events_id' => (int)$this->get_event_id(),
            'year' => $this->input->post('year'),
            'month' => ($this->input->post('month') > 10) ? $this->input->post('month') : '0' . $this->input->post('month'),
            'day' => $this->input->post('day'),
            'date' => $this->input->post('year') .'-'. $this->input->post('month') .'-'. $this->input->post('day'),
            'event' => $this->input->post('event'),
            'date_added' => mdate('%Y-%m-%d %H:%i:%s', now())
        );

        $this->db->insert($this->db->dbprefix . 'extra_events', $data);
    }

    public function get_event_id() {
        $this->db->where('year', $this->input->post('year'));
        $this->db->where('month', ($this->input->post('month') > 10) ? $this->input->post('month') : '0' . $this->input->post('month'));
        $this->db->where('day', $this->input->post('day'));

        $query = $this->db->get($this->db->dbprefix . 'events');

        if ($query->num_rows() > 0) {
            $row = $query->row();
            return $row->events_id;
        } else {
            return false;
        }
    }

     public function check_event() {
        $this->db->where('year', $this->input->post('year'));
        $this->db->where('month', ($this->input->post('month') > 10) ? $this->input->post('month') : '0' . $this->input->post('month'));
        $this->db->where('day', $this->input->post('day'));
        $query = $this->db->get($this->db->dbprefix . 'events');

        if ($query->num_rows() > 0) {
            return TRUE;
        } else {
            return FALSE;
        }
    }

    public function delete_events() {
        $this->db->where("date <", date('Y-m-d'));
        $this->db->delete($this->db->dbprefix . 'events');
    }

    public function delete_extra_events() {
        $this->db->where("date <", date('Y-m-d'));
        $this->db->delete($this->db->dbprefix . 'extra_events');
    }

    public function get_calendar_events($year, $month) {
        $calendar = array();

        $events = $this->get_events($year, $month);

        foreach($events as $event) {

            $calendar[$event['day']] = '<br/>' . $event['event'];

            $extra_events = $this->get_extra_events($event['events_id']);

            foreach($extra_events as $extra_event) {
                if (array_key_exists($extra_event['day'], $calendar)) {
                    $calendar[$extra_event['day']] = $calendar[$extra_event['day']] . '<br/>' .  $extra_event['event'];
                } else {
                    $calendar[$extra_event['day']] =  $extra_event['event'];
                }
            }
        }


        return $calendar;
    }

    public function get_events($year, $month) {
        $this->db->where('year', $year);
        $this->db->where('month', $month);
        $events = $this->db->get($this->db->dbprefix . 'events');
        return $events->result_array();
    }

    public function get_extra_events($events_id) {
        $this->db->limit(5);
        $this->db->where('events_id', $events_id);
        $extra_events = $this->db->get($this->db->dbprefix . 'extra_events');
        return $extra_events->result_array();
    }
}

只需在get_events（）函数中限制foreach函数。您可以使用迭代变量$i=0来限制foreach；并在$i<1时运行foreach；我希望它能为你工作。@AliShan你能用我的代码显示它吗。@wolfgang1983嘿，你能用一个你所期望的再清楚一点吗。以及添加
print\r（$query->result\u array（））
resulttoo@Abdulla我已经更新了question@wolfgang1983你也可以发布这个数组输出吗
$query1->result\u array（）
和
$query2->result\u array（）
不起作用，由于某些原因，现在只显示整个日历中的两个结果。在26天的日历上，如图所示，有3个日历应该显示2您可以通过Skype VuProjects与我联系14抱歉，目前无法联系。
public function get_calendar_events($year, $month) {
        $calendar = array();

        $events = $this->get_events($year, $month);

        foreach($events as $event) {

            // Added line for main calendar event
            $calendar[$event['day']] = '<br/>' . $event['event'];

            // Passes main event id to extra_events get function
            $extra_events = $this->get_extra_events($event['events_id']);

            // checks if array key exists for extra event in side foreach loop
            foreach($extra_events as $extra_event) {
                if (array_key_exists($extra_event['day'], $calendar)) {
                    $calendar[$extra_event['day']] = $calendar[$extra_event['day']] . '<br/>' .  $extra_event['event'];
                } else {
                    $calendar[$extra_event['day']] =  $extra_event['event'];
                }
            }
        }


        return $calendar;
    }

<?php

class Model_calendar extends CI_Model {

    public function add_event() {
        $data = array(
            'year' => $this->input->post('year'),
            'month' => ($this->input->post('month') > 10) ? $this->input->post('month') : '0' . $this->input->post('month'),
            'day' => $this->input->post('day'),
            'date' => $this->input->post('year') .'-'. $this->input->post('month') .'-'. $this->input->post('day'),
            'event' => $this->input->post('event'),
            'date_added' => mdate('%Y-%m-%d %H:%i:%s', now())
       );

       $this->db->insert($this->db->dbprefix . 'events', $data);
    }

    public function add_extra_event() {
        $data = array(
            'events_id' => (int)$this->get_event_id(),
            'year' => $this->input->post('year'),
            'month' => ($this->input->post('month') > 10) ? $this->input->post('month') : '0' . $this->input->post('month'),
            'day' => $this->input->post('day'),
            'date' => $this->input->post('year') .'-'. $this->input->post('month') .'-'. $this->input->post('day'),
            'event' => $this->input->post('event'),
            'date_added' => mdate('%Y-%m-%d %H:%i:%s', now())
        );

        $this->db->insert($this->db->dbprefix . 'extra_events', $data);
    }

    public function get_event_id() {
        $this->db->where('year', $this->input->post('year'));
        $this->db->where('month', ($this->input->post('month') > 10) ? $this->input->post('month') : '0' . $this->input->post('month'));
        $this->db->where('day', $this->input->post('day'));

        $query = $this->db->get($this->db->dbprefix . 'events');

        if ($query->num_rows() > 0) {
            $row = $query->row();
            return $row->events_id;
        } else {
            return false;
        }
    }

     public function check_event() {
        $this->db->where('year', $this->input->post('year'));
        $this->db->where('month', ($this->input->post('month') > 10) ? $this->input->post('month') : '0' . $this->input->post('month'));
        $this->db->where('day', $this->input->post('day'));
        $query = $this->db->get($this->db->dbprefix . 'events');

        if ($query->num_rows() > 0) {
            return TRUE;
        } else {
            return FALSE;
        }
    }

    public function delete_events() {
        $this->db->where("date <", date('Y-m-d'));
        $this->db->delete($this->db->dbprefix . 'events');
    }

    public function delete_extra_events() {
        $this->db->where("date <", date('Y-m-d'));
        $this->db->delete($this->db->dbprefix . 'extra_events');
    }

    public function get_calendar_events($year, $month) {
        $calendar = array();

        $events = $this->get_events($year, $month);

        foreach($events as $event) {

            $calendar[$event['day']] = '<br/>' . $event['event'];

            $extra_events = $this->get_extra_events($event['events_id']);

            foreach($extra_events as $extra_event) {
                if (array_key_exists($extra_event['day'], $calendar)) {
                    $calendar[$extra_event['day']] = $calendar[$extra_event['day']] . '<br/>' .  $extra_event['event'];
                } else {
                    $calendar[$extra_event['day']] =  $extra_event['event'];
                }
            }
        }


        return $calendar;
    }

    public function get_events($year, $month) {
        $this->db->where('year', $year);
        $this->db->where('month', $month);
        $events = $this->db->get($this->db->dbprefix . 'events');
        return $events->result_array();
    }

    public function get_extra_events($events_id) {
        $this->db->limit(5);
        $this->db->where('events_id', $events_id);
        $extra_events = $this->db->get($this->db->dbprefix . 'extra_events');
        return $extra_events->result_array();
    }
}

<?php

class Calendar extends CI_Controller {

    public function __construct() {
        parent::__construct();
        $this->load->model('dashboard/model_calendar');
        $this->load->library('calendar');
        $this->load->library('form_validation');

    }

    public function index() {    
        if ($this->uri->segment(3) == FALSE) {
            $year = date('Y');
        } else {
            $year = $this->uri->segment(3);
        }

        if ($this->uri->segment(4) == FALSE) {
            $month = date('m');
        } else {
            $month = $this->uri->segment(4);
        }

        $prefs = array(
            'start_day' => 'monday',
            'show_next_prev' => true,
            'month_type'   => 'long',
            'day_type' => 'long',
            'next_prev_url' => base_url('dashboard/calendar')
        );

        $prefs['template'] = '
            {table_open}<div class="table-responsive"><table border="0" cellpadding="0" cellspacing="0" class="table table-hover table-striped table-bordered calendar">{/table_open}

            {heading_row_start}<tr>{/heading_row_start}

            {heading_previous_cell}<th><a href="{previous_url}"><i class="fa fa-chevron-left fa-2x "></i></a></th>{/heading_previous_cell}
            {heading_title_cell}<th class="text-center" colspan="{colspan}">{heading}</th>{/heading_title_cell}
            {heading_next_cell}<th class="text-right "><a href="{next_url}"><i class="fa fa-chevron-right fa-2x"></i></a></th>{/heading_next_cell}

            {heading_row_end}</tr>{/heading_row_end}

            {week_row_start}<tr >{/week_row_start}
            {week_day_cell}<td class="text-center" style="height: 5rem;">{week_day}</td>{/week_day_cell}
            {week_row_end}</tr>{/week_row_end}

            {cal_row_start}<tr class="days">{/cal_row_start}
            {cal_cell_start}<td class="day">{/cal_cell_start}

            {cal_cell_content}
                <div class="day_number">{day}</div>
                <div class="content" style="margin-top: 0;">{content}</div>
            {/cal_cell_content}
            {cal_cell_content_today}
                <div class="day_number highlight">{day}</div>
                <div class="content" style="margin-top: 0;">{content}</div>
            {/cal_cell_content_today}

            {cal_cell_no_content}
            <div class="day_number">{day}</div>
            {/cal_cell_no_content}
            {cal_cell_no_content_today}
            <div class="day_number highlight">{day}</div>
            {/cal_cell_no_content_today}
            {cal_cell_blank}&nbsp;{/cal_cell_blank}

            {cal_cell_end}</td>{/cal_cell_end}
            {cal_row_end}</tr>{/cal_row_end}

            {table_close}</table></div>{/table_close}
        ';

        $this->calendar->initialize($prefs);

        $this->model_calendar->delete_events();

        $this->model_calendar->delete_extra_events();

        $events = $this->model_calendar->get_calendar_events($year, $month);

        $data['calendar'] = $this->calendar->generate($year, $month, $events);

        if ($this->uri->segment(3) == TRUE) {
            $data['view_more'] = site_url('report/events/'.  $year .'/'. $month);
        } else {
            $data['view_more'] = site_url('report/events');
        }

        $this->form_validation->set_rules('event', 'Calendar Event', 'trim|required');

        if ($this->form_validation->run() == FALSE) {

            $this->load->view('dashboard/calender_view', $data);

        } else {

            if ($this->model_calendar->check_event() == TRUE) {

                $this->model_calendar->add_extra_event();

            } else {

                $this->model_calendar->add_event();

            }

            $this->session->set_flashdata('added_event', '<i class="fa fa-check-circle"></i> You have added event to your calendar!');

            redirect('common/dashboard');

        }
    }
}