php - Updating Database And Query Based On Location -

-

for last few days i've been trying fix code in android can onlocationchanged () send new latitude , longitude database , when it's updated want query based on location. i'm having trouble doing android , wondering if there way "combine" 2 php codes use updating , querying database. both codes work separately, can combined? need database updated new data , query or vice versa.

update.php

$latitude1 = $_post["latitude"]; $longitude1 = $_post["longitude"]; $username = $_post["username"];  $updatequery = mysqli_prepare($con , "update users set latitude = ?, longitude = ? username = ?"); mysqli_stmt_bind_param($updatequery ,"dds",$latitude1,$longitude1,$username); mysqli_stmt_execute($updatequery);  mysqli_stmt_close($updatequery); mysqli_close($con);

querybylocation.php

$origlat = $_post["latitude"]; $origlon = $_post["longitude"]; $dist = 30; $id = $_post["id"];  if(mysqli_connect_errno($con)) { die("connection failed : " . mysqli_connect_error()); }  $sql = "select id, name, age, city, gender, latitude, longitude, 3956 * 2 * 1.609344 * 1000 *           asin(sqrt( power(sin(($origlat - abs(latitude))*pi()/180/2),2)           +cos($origlat*pi()/180 )*cos(abs(latitude)*pi()/180)           *power(sin(($origlon-longitude)*pi()/180/2),2)))            distance users id != '$id'           , longitude between ($origlon-$dist/abs(cos(radians($origlat))*69))            , ($origlon+$dist/abs(cos(radians($origlat))*69))            , latitude between ($origlat-($dist/69))            , ($origlat+($dist/69))           having distance < $dist order distance limit 30;";     $result = mysqli_query($con, $sql);  $rows = array();  while($row = mysqli_fetch_array($result, mysqli_assoc)) {     $rows[] = $row; }  mysqli_close($con); echo json_encode($rows); 

$origlat = $_post["latitude"]; $origlon = $_post["longitude"]; $dist = 30; $id = $_post["id"]; $username = $_post["username"]; if(mysqli_connect_errno($con)) { die("connection failed : " . mysqli_connect_error()); }  $updatequery = mysqli_prepare($con , "update users set latitude = ?, longitude = ? username = ?"); mysqli_stmt_bind_param($updatequery ,"dds",$origlat,$origlon,$username); mysqli_stmt_execute($updatequery);  mysqli_stmt_close($updatequery);  $sql = "select id, name, age, city, gender, latitude, longitude, 3956 * 2 * 1.609344 * 1000 *           asin(sqrt( power(sin(($origlat - abs(latitude))*pi()/180/2),2)           +cos($origlat*pi()/180 )*cos(abs(latitude)*pi()/180)           *power(sin(($origlon-longitude)*pi()/180/2),2)))            distance users id != '$id'           , longitude between ($origlon-$dist/abs(cos(radians($origlat))*69))            , ($origlon+$dist/abs(cos(radians($origlat))*69))            , latitude between ($origlat-($dist/69))            , ($origlat+($dist/69))           having distance < $dist order distance limit 30;";     $result = mysqli_query($con, $sql);  $rows = array();  while($row = mysqli_fetch_array($result, mysqli_assoc)) {     $rows[] = $row; }  mysqli_close($con); echo json_encode($rows);

Comments

Post a Comment

Popular posts from this blog

html - Firefox flex bug applied to buttons? -

-
i'm trying apply flex button on firefox i'm having problem on chrome doesn't happens. this css: .button { display: inline-flex; align-items: center; } as can see in fiddle, "caret" word moved new line, happens if element <button> tag, <div> works expected. http://codepen.io/anon/pen/xblmgx is firefox bug or there css i'm missing? nevermind, looks "mr firefox" doesn't idea... <button> not implementable (by browsers) in pure css, bit of black box, perspective of css. means don't react in same way e.g. <div> would. this isn't specific flexbox -- e.g. don't render scrollbars if put "overflow:scroll" on button, , don't render table if put "display:table" on it. stepping further, isn't specific <button> . consider <fieldset> , <table> have special rendering behavior: data:text/html,<fieldset style="d
Read more

html - Missing border-right in select on Firefox -

-
Image
when put select div width , padding-left, options have no border on right. more, happend if select have width 118px , parent have 15px of padding left! have idea, going on? my code: <!doctype html> <html> <head lang="en"> </head> <body> <div style="width: 1000px; padding-left: 15px;"> <select style="width: 118px;"> <option>a</option> <option>b</option> <option>c</option> </select> </div> </body> </html> and result: here plunker: click it happend on firefox on windows. tested on 40.0.2 version -webkit-box-sizing: border-box; -moz-box-sizing: border-box; -ms-box-sizing: border-box; box-sizing: border-box; source: https://stackoverflow.com/a/11390432/4431269 source of problem: https://bugzilla.mozilla.org/show_bug.cgi?id=924068 and use of google ! edit: (source of problem, explained) after rea
Read more

c# - two queries in same method -

-
i trying execute 2 queries in same method gives me exception. can red of exception declaring new command there way use same command? string id="hi"; connection.open(); oledbcommand command1 = new oledbcommand(); command1.connection = connection; string query1 = "select * products category='" + combobox1.text + "' , subcategory = '" + combobox2.text + "' , sizes='" + combobox3.text + "'"; command1.commandtext = query1; oledbdatareader reader = command1.executereader(); while (reader.read()) { id = reader[0].tostring(); } textbox1.text = id; string query = "insert category_in (category_id,amount,amount_in) values ('"+ id+"' ,500,300)"; command1.commandtext = query; command1.executenonquery(); messagebox.show("saved"); connection.close();
Read more