Question

I am having a json string

[{"part_id":"66","part_name":"Palet crate","part_image":"crate-box.gif","0":{"language_data_content":"Length [mm]","pgd_value":"1000"},"1":{"language_data_content":"Width [mm]","pgd_value":"800"},"2":{"language_data_content":"Height [mm]","pgd_value":"800"},"3":{"language_data_content":"Thickness [mm]","pgd_value":"20"}}]

This is a part of a Ajax response from my action in a controller

  for($i=0;$i<count($partlist);$i++){              
            $jsondata[$i]['part_id'] = $partlist[$i]['part_id'];
            $jsondata[$i]['part_name'] = $partlist[$i]['part_name'];
            $jsondata[$i]['part_image'] = $partlist[$i]['part_image'];
            $gdata = $pgdata->getPropertyDimensions($partlist[$i]['part_id'],1);
            if(count($gdata) > 0){
                $j = 0;
                foreach($gdata as $g){
                    $jsondata[$i][$j]['language_data_content'] = $g->language_data_content;
                    $jsondata[$i][$j]['pgd_value'] = $g->pgd_value;
                    $j++;
                }
            }           
        } 
       echo json_encode($jsondata);exit;

For one part id there can be multiple pgd_value In this json array there is only one part id and four pgd_value..on my ajax success function in looping this json as

success:function(msg){
str = '';
  if(msg.length > 0){
                for(j=0;j<msg.length;j++){
   str +='<span>'+msg[j]['part_id']+'</span>';
   // here i want to loop those four **pgd_value** values from json is it possible ?

}
}

}

Answer 1

You can use jQuery.map to select the pgd_values. See this fiddle: http://jsfiddle.net/HackedByChinese/6LLVe/1/

var str = '';
if (msg.length > 0) {
    for (j = 0; j < msg.length; j++) {
        var pgdValues = $.map(msg[j], function(item) {
            if (item['pgd_value']) return item['pgd_value'];
        });
        str += '<span> Part ID ' + msg[j]['part_id'] + ' pgd_values ' + pgdValues.join(', ') + '</span>';
        // OP: here i want to loop those four **pgd_value** values from json is it possible ?
        // ME: yep. all the IDs are now accessible from `pgdValues`


    }
}