php - Dynamically add plotband in highchart -


i new in highchart, want add dynamically plotband , want send plotedband json php , access in jquery method, accessing xaxis , yaxis data php 

 **jquery code**   $(function () {       var plotband ='';          var options = {             chart: {                 renderto: 'containerline',                 type: 'line',                 plotshadow: false,                 //marginright: 130,                 marginbottom: 55             },             title: {                 text: 'portfolio uw vs current capex',                 x: -20 //center             },             subtitle: {                 text: '',                 x: -20             },             xaxis: {                 categories: [],                 plotbands: plotband,                  labels: {                     rotation: 270                   },                 },             yaxis: {                // title: {                //     text: 'amount'                // },                  labels: {                     format: '{value:,.0f}'                  },                 plotlines: [{                     value: 0,                     width: 1,                     color: '#808080'                 }]             },             tooltip: {                 formatter: function() {                         return '<b>'+ this.series.name +'</b><br/>'+                         this.x +': '+ this.y;                 }             },             legend: {                 layout: 'vertical',                 align: 'right',                 enabled: false,                 verticalalign: 'top',                 x: -10,                 y: 100,                 borderwidth: 0             },             lang: {                 thousandssep: ','             },             series: [],             exporting: {                 enabled: false             },             credits: {                   enabled: false             },         }         var hidden_portfolio_ids=$('#hidden_portfolio_id').val();         $.getjson('<?php echo base_url(); ?>controller/data_linechart/'+hidden_portfolio_ids+'', function(json) {             options.xaxis.categories = json[0]['data'];             options.series[0] = json[1];             options.series[1] = json[2];             options.plotband= json[3];             chart = new highcharts.chart(options);         }); });      **php code**    public function data_linechart($id) {      $data = $this->model->get_linechart_data($id);      $category = array();     $category['name'] = 'category';      $series1 = array();     $series1['name'] = 'uw';      $series2 = array();     $series2['name'] = 'proj';      $series3 = array();     $series3['name'] = 'today';      foreach ($data $row)     {         $datepaid = new datetime($row->pcs_linchartdrawdate);          $newdate= $datepaid->format('m-d');           $category['data'][] = $newdate;         $series1['data'][] = $row->pcs_uw;              $series2['data'][] = $row->pcs_projected;         //$series3['data'][] = $row->pcs_today;      }     $plotband= "[{         color: 'orange',         from:1,         to: 1.01     }]";      $result = array();     array_push($result,$category);     array_push($result,$series1);     array_push($result,$series2);     array_push($result,$plotband);      print json_encode($result, json_numeric_check); }

all data coming correct , xaxis , yaxis plotting correctly how draw plotband php,

your $plodband string instead of json. use like: 

$plotband = array[];  $plotband[0] = array(         color => 'orange',         => 1,         to= > 1.01 );

and extract object json in chart configuration.


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