jquery - how to draw multiple googlechart from different datatable in one php file? -


i want draw few charts different datatables. datatables queries in 1 php file called ajax.php.

this code:

//job post salary function jobsalary(){  global $db;  //query location total post $sql = 'select lcs.salaryrange_id, count(ljj.job_id) count, lcs.salaryrange_item {local_jobs_job} ljj inner join {local_cv_salaryrange} lcs on ljj.job_salaryrangeid = lcs.salaryrange_id job_type = 0 group lcs.salaryrange_item';   //get query record $data = $db->get_records_sql($sql);  //put query array $rows = array();  $rows = array_map(function($item) { return (object) ['c' => [     (object) ['v' => $item->salaryrange_item, 'f' => null],     (object) ['v' => intval($item->count), 'f' => null] ]]; }, array_values($data));    // prepare return data  $cols = [ (object) ['id' => '', 'label' => 'label', 'pattern' => '', 'type' => 'string'], (object) ['id' => '', 'label' => 'total', 'pattern' => '', 'type' => 'number'],  ];   $returndata = new stdclass; $returndata->cols = $cols; $returndata->rows = $rows;  echo json_encode($returndata);  }   //job post job's category  function jobcategory(){   global $db;   //query job's category total post  $sql = 'select ljc.category_id, count(ljj.job_id) count, ljc.category_group {local_jobs_job} ljj inner join {local_jobs_category} ljc on ljj.job_categoryid = ljc.category_id  ljj.job_type = 0 group ljc.category_group';    //get query record  $data = $db->get_records_sql($sql);   //put query array   $rows = array();    $rows = array_map(function($item) {   return (object) ['c' => [     (object) ['v' => $item->category_group, 'f' => null],     (object) ['v' => intval($item->count), 'f' => null]   ]];   }, array_values($data));    // prepare return data  $cols = [ (object) ['id' => '', 'label' => 'label', 'pattern' => '', 'type' => 'string'], (object) ['id' => '', 'label' => 'total', 'pattern' => '', 'type' => 'number'], ];    $returndata = new stdclass;  $returndata->cols = $cols;  $returndata->rows = $rows;  echo json_encode($returndata);   }

the chart drawn in php file called report.php. code:

 google.charts.setonloadcallback(drawitems);      function drawitems(){             var functionname = json.stringify({values:"joblocation"});             var jsonpiechartdata = $.ajax({                             url: "ajax.php",                             contenttype: "application/json",                             data: "functionname",                             datatype: "json",                             async: false,                              }).responsetext;                  var piechartdata = new google.visualization.datatable(jsonpiechartdata);                  var optionschart = {                                 //title: 'job posts location',                                 pieslicetext: 'label',                                 tooltip: {ishtml: true},                                 width: 500,                                 height: 300,                                 chartarea: { left:"5%",top:"20%",width:"90%",height:"90%" }                               };                  // instantiate , draw our pie chart, passing in options.                 var chart = new google.visualization.piechart(document.getelementbyid('chart_div'));                   //draw chart                       chart.draw(piechartdata, optionschart);                      }

but, don't know how call specific function each chart using ajax call. previously, draw 1 chart using 1 datatable in ajax.php file.

as per requirement create multiple ajax files , call ajax files in 1 php file


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