Graphic plot with FLOT using mysql and ajax

Question

I am trying to use a fleet to build some data that is retrieved from MySQL db. I am logging user logs, and I have a SQL function that will track the number of visits per day for a given month, getStats ($ day). I read a few examples online on how to do this correctly, but for some reason, when I try to rob array data in my javascript file, it is "empty" → "data:". Below is my code. I use the CI framework, so if there are some questions about my code, this is most likely due to this. I have hardcoded data and it works great. Any help on this would be appreciated, as there is currently little to be done with databases.

Model ---> metrics.php

function showUsers() {

    //get the number of days in the current month and the first day
    $num_days = cal_days_in_month(CAL_GREGORIAN, date(m), date(Y));
    $first_day = strtotime(date('Y').'-'.date('m').'-01');

    //iterate through all of the days
    while( $i < $num_days ) {

         //get the user visits for each day of the month
         $log = $this->db->getStats($first_day);

         //add +1 day to the current day
         $first_day += 86400;
         $flot_visits[] = '['.($first_day*1000).','.$log->fields['total'].']';
         $i++;
    }

    //format in acceptable format for flot
    $content['visits'] = '['.implode(',',$flot_visits).']';

    //load the view and pass the array
    $this->load->vars($content);
    $this->load->view('metrics/user_metrics', $content);
}

View ---> user_metrics.php

 <div id ="visits_graph" style="width:600px; height:300px"></div>

Javascript --- > user_metrics.js

function metrics() {

   $.ajax({
            type: "POST",
            url: pathurl + "metrics/showUsers",
            data: "",
            success: function(data) {
                   graph_visits();
            }
         });
}

function graph_visits() {

     $.plot($('#visits_graph'), [
         { label: 'Visits', data: <?php echo $visits ?> }
         ], {
               xaxis: {
                         mode: "time",
                         timeformat: "%m/%d/%y"
                      },
               lines: { show: true },
               points: { show: true },
               grid: { backgroundColor: #fffaff' }
         });
}

Answer 1

, . ( , JQuery)

, .

• - showUsers() - :

    function showUsers() {
        //get the number of days in the current month and the first day
        $num_days = cal_days_in_month(CAL_GREGORIAN, date(m), date(Y));
        $first_day = strtotime(date('Y').'-'.date('m').'-01');

        //iterate through all of the days
        while( $i db->getStats($first_day);

         //add +1 day to the current day
         $first_day += 86400;

         //change this to be a nested array
         $flot_visits[] = array( ($first_day*1000) , $log->fields['total'] );
         $i++;
    }

        //output javascript array
        echo json_encode( $flot_visits );
    }

2. user_metrics.js - :

    function metrics() {    
       $.getJSON({
                pathurl + "metrics/showUsers",
            function(data) {
                       //use the returned data
                       graph_visits(data);
                }
             });
    }


    function graph_visits( graphData ) {
         $.plot($('#visits_graph'), [
             { label: 'Visits', data: graphData }
             ], {
                   xaxis: {
                             mode: "time",
                             timeformat: "%m/%d/%y"
                          },
                   lines: { show: true },
                   points: { show: true },
                   grid: { backgroundColor: #fffaff' }
             });
    }

Answer 2

, , . , , , - , .

- , , javascript (html) - , javacscript.

function graph_visits() {

 $.plot($('#visits_graph'), [
     { label: 'Visits', data: <?php echo $visits ?> }
     ], {
           xaxis: {
                     mode: "time",
                     timeformat: "%m/%d/%y"
                  },
           lines: { show: true },
           points: { show: true },
           grid: { backgroundColor: #fffaff' }
     });
}

          <?php echo $visits ?> 

. , , html . ,

<script language="javascript">


   $.plot($('#visits_graph'), [
     { label: 'Visits', data: <?php echo $visits ?> }
     ], {
           xaxis: {
                     mode: "time",
                     timeformat: "%m/%d/%y"
                  },
           lines: { show: true },
           points: { show: true },
           grid: { backgroundColor: #fffaff' }
     });

</script>

, , , .