<pre id="love" type="submit" data-toggle="modal" data-target="#myModal" onclick="mymodal(''+this["id"]+'')">'+this["love"]+' students <i  class="glyphicon glyphicon-heart fa-lg" style="color:red"></i></pre >

var list='';
    function mymodal(id){
    $.post('postname_.php',{post_id:id},function(data1){
    $.each(data1.result,function(){
    list+='<div class="modal fade" id="myModal" role="dialog">'+'<div class="modal-dialog">'+'<div class="modal-content">'+
    '<div class="modal-header">'+'<button type="button" class="close" data-dismiss="modal">&times;</button>'+
    '<h4 class="modal-title">Students who loved your post</h4>'+' </div>'+'<div class="modal-body">';
    list+='<h4 class="text-danger">'+this["finame"]+' '+this['sename']+'</h4>';
    list+='</div>'+'<div class="modal-footer">'+
    '<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>'+'</div>'+
    '</div>'+'</div>'+'</div>';
    $('#insert').append(list);}),'json'
    });
    }

<?php
require("../vendor/library50-php-5/CS50/CS50.php");
CS50::init(__DIR__ . "/../config.json");

    $result=array();
     $frows3=CS50::query("SELECT * FROM userhit WHERE plove=? AND bypost=?",1,$_POST['post_id']);
     foreach($frows3 as $frow3){
      $frow4=CS50::query("SELECT * FROM userinfopersonal WHERE user_id=? ",$frow3['user_id']);
     $frow5=CS50::query("SELECT * FROM userprof WHERE user_id=? ",$frow3['user_id']);
     array_push($result,array('finame'=>$frow4[0]['firstname'],'sename'=>$frow4[0]['secondname'],'url1'=>$frow5[0]['url']));

     }echo json_encode(array('result'=> $result)); ?>