<?php
require("config.php");
if(isset($_POST['update'])){
    $event_id = mysql_real_escape_string($_POST['event_id']);
    $field = mysql_real_escape_string($_POST['field']);
    $value = mysql_real_escape_string($_POST['value']);

    // Update krk_fld_data table
    $chk = mysql_query("SELECT * FROM krk_fld_data WHERE event_id='$event_id' AND fld='$field'");
    if(mysql_num_rows($chk)>0){
        mysql_query("UPDATE krk_fld_data SET val='$value' WHERE event_id='$event_id' AND fld='$field'");
    } 
    // else {
    //     mysql_query("INSERT INTO krk_fld_data(event_id, fld, val) VALUES('$event_id','$field','$value')");
    // }

    echo "success";
}
?>