I have only just started writing the PHP script to power the backend of my android app. What i'm currently trying to do is run a PHP script that goes into my database called send_friendreq and the table called pending_req and gets the row toUser and adds it to an array. The only problem i'm currently having is the fact that I cannot get the PHP script to run correctly. Any help would be appreciated. Here is my code for the PHP script that I currently have. Thank you very much for the help!
if (isset($_POST['Username']) && isset($_POST['FriendReq']))
{
$username = $_POST['Username'];
$usernamebeingreq = $_POST['FriendReq'];
$i=0;
//$sqlCheck = "SELECT Username FROM Users WHERE Username = '" . $usernamebeingreq . "'";
//$resultCheck = mysqli_query($con, $sqlCheck);
//if(!$resultCheck)
//{
//echo "Invalid Username";
//}
//else
//{
$sql="SELECT fromUser FROM pending_req WHERE toUser='&username'";
$result = mysqli_query($con, $sql);
$array = array();
while ($row = pg_fetch_array($result))
{
$i++;
}
for($x=0;$x<$i;$x++)
{
echo $array[$x];
}
if(!$result)
{
echo 'Failed';
}
else
{
echo json_encode($array[$x]);
echo "<br>";
}
If you have suggestions on something that would work better / more efficiently / safer, please let me know!
If I am not wrong, you are trying to get json of results from your query. try this code.
if (isset($_POST['Username']) && isset($_POST['FriendReq']))
{
$username = $_POST['Username'];
$usernamebeingreq = $_POST['FriendReq'];
$i=0;
//$sqlCheck = "SELECT Username FROM Users WHERE Username = '" . $usernamebeingreq . "'";
//$resultCheck = mysqli_query($con, $sqlCheck);
//if(!$resultCheck)
//{
//echo "Invalid Username";
//}
//else
//{
$sql = 'SELECT fromUser FROM pending_req WHERE toUser='. $username ;
$result = mysqli_query($con, $sql);
if(!$result) {
echo 'Failed';
}elseif($result){
$myArray = array();
while($row = $result->fetch_array(MYSQL_ASSOC)) {
$myArray[] = $row;
}
echo json_encode($myArray);
}
you query syntax seems to be not correct plz modify as :
$sql="SELECT fromUser FROM pending_req WHERE toUser='$username'";
Related
I would like to see where my code is incorrect. I want to store values from my database as a php array. Then I'd like to store the individual parts of the array as separate variables. Here is my code:
<?php
$result = mysqli_query($db, "SELECT column FROM table");
if (!$result) {
echo 'Could not run query';
exit;
}
$comments = mysqli_fetch_row($result);
$comment0 = $comments[0];
$comment1 = $comments[1];
$comment2 = $comments[2];
$comment3 = $comments[3];
$comment4 = $comments[4];
$comment5 = $comments[5];
$comment6 = $comments[6];
$comment7 = $comments[7];
$comment8 = $comments[8];
$comment9 = $comments[9];
?>
This will run your mysql query and add each comment to an array of comments, then print the array.
<?php
$result = mysqli_query($db, "SELECT column FROM table");
if (!$result) {
echo 'Could not run query';
exit;
}
$comments = array();
while($comment = mysqli_fetch_row($result)){
$comments[] = $comment;
}
print_r($comments);
?>
not sure if you are in console or through web server.
<?php
$result = mysqli_query($db, "SELECT column FROM table");
if (!$result) {
echo 'Could not run query';
exit;
}
$comments = mysqli_fetch_row($result);
foreach($comments as $comment){
echo print_r($comment,1).'--------------\r\n<br>\r\n';
}
?>
this is called a loop. loop is your friend.
if(!empty($username)&&!empty($password)) {
//following an old tutorial
$query = "SELECT `id` FROM `users` WHERE `Username`='$username' AND `Password`='$password_hash'";
if($query_run= mysqli_query($link, $query)) {
$query_num_rows = mysqli_num_rows($query_run);
//tried most of solutions on the site not working
if ($query_num_rows==0) {
echo 'Invalid username/password combination';
}
else if ($query_num_rows==1) {
//need sometihng to substitute the mysql_result
//its not working and iam not kinda ahnde with php
$user_id = mysql_result($query_run, 0, 'id');;
$_SESSTION['user_id'] = $user_id;
header ('Location: php.php');
}
}
}
mysql has been depricated, use mysqli instead
You can use this code to get data:
$query = "SELECT id FROM users WHERE Username='$username' AND Password='$password_hash'";
$result = mysqli_query($link, $query);
if (mysqli_num_rows($result) > 0) {
while($row = mysqli_fetch_assoc($result))
{
echo "id:" . $row["id"];
}
} else {
echo "No results found";
}
I had this query using php in inserting images after submitting the form It says "Requirements submitted succesfully" but there is no data inserted in database.
This is my code so far:
if(isset($_POST['sumit'])){
$count = count($_FILES);
$query = "SELECT * FROM dummyclients_tbl WHERE user_id = '".$_SESSION['user']."'";
if (!$result = mysql_query($query)) {
exit(mysql_error());
}
if(mysql_num_rows($result)){
$row = mysql_fetch_assoc($result);
$sid = $row['user_id'];
$coll =$row['college'];
$stat = "Pending";
$query = "INSERT INTO request_tbl (user_id,document_id,imgreq1,imgreq2,imgreq3,imgreq4,imgreq5,imgreq6,imgreq7,request_status,college) VALUES ('$sid','$passed_id'";
for($i = 1; $i <= $count; ++$i){
if(is_uploaded_file($_FILES['imgreq'.$i]['tmp_name']) && $_FILES['imgreq'.$i]['size']){
$query .= ",'" . base64_encode(file_get_contents(addslashes($_FILES['imgreq'.$i]['tmp_name']))) . "'";
}else{
$query .= ",NULL";
}
}
$query .= ",'$stat','$coll')";
?>
<script>alert('Requirements Successfully Submitted!');</script>
<?php
// saveimage($query);
}
else{
?>
<script>alert('Error while submitting form!');</script>
<?php
}
}
I dont know where did I go wrong so please if anyone can help I appreciate it. Thanks.
So it is true that I did not execute the query and forgot to put mysql_query($query); after $query .= ",'$stat','$coll')"; . And that lead me to solving another problem wherein I did not set the fields in the database to receive NULL values which is the cause of the error.
after:
$query .= ",'$stat','$coll')";
add
mysql_query($query)
I'm trying to fetch couple of single data in my server database but this is throwing some errors. The incoming data is correct. The search function just don't get completed.
Here's the code:
<?php
if($_SERVER['REQUEST_METHOD']=='POST'){
define('HOST','xxxxxxxxxxx');
define('USER','xxxxxxxxxxxx');
define('PASS','xxxxxxxxx');
define('DB','xxxxxxxxxx');
$con = mysqli_connect(HOST,USER,PASS,DB);
$post_id = $_POST['id'];
$buyer_mobile = $_POST['mobile'];
$buyer_name = $_POST['name'];
$sql = "select mobile from flatowner where id='$post_id'";
$res = mysqli_query($con,$sql);
$owner_mobile = $row['mobile'];
$sql = "select name from user where mobile='$owner_mobile'";
$r = mysqli_query($con,$sql);
$owner_name = $row['name'];
$sql = "INSERT INTO flat_booking (post_id,owner_mobile,owner_name,buyer_mobile,buyer_name) VALUES ('$post_id','$owner_mobile','$owner_name','$buyer_mobile','$buyer_name')";
if(mysqli_query($con,$sql)){
echo "Success";
}
else{
echo "error";
}
mysqli_close($con);
}else{
echo 'error1';
}
What am I doing wrong here? Maybe this:
$owner_mobile = $row['mobile'];
Thanks in advance!
create table flatower and add mobile column
$post_id = 1;
$sql = "select mobile from flatowner where id='$post_id'";
$res = mysql_query($con,$sql);
$row = mysql_fetch_array($res);
$owner_mobile = $row[0]['mobile'];
Your problem is this line:
$owner_mobile = $row['mobile'];
You have not created the $row variable. For this you would need to do something such as:
Do this first:
<?php
$row = array();
while ($result = mysqli_fetch_assoc($res))
{
$row[] = $result;
}
?>
This allows you to do this:
<?php
foreach ($row as $r)
{
var_dump($r); print "<br />"; // One row from the DB per var dump
}
?>
I'm currently trying to echo information from my SQL database which I had to encode in order for it to efficiently write into the table; now when I try to echo the information, WHILE decoding it, the page displays nothing, I'm not entirely sure what I'm doing wrong at this point.
<?php
$type = $_SESSION['SESS_ACC_TYPE'];
$login = $_SESSION['SESS_LOGIN_NAME'];
$log = base64_decode(''.$row['log'].'');
if ($type == '2') {
$qry = "SELECT log FROM logs ";
$result = mysqli_query($GLOBALS["___mysqli_ston"], $qry);
while($row = mysqli_fetch_assoc($result)){
echo ''.$log.'';
}
}
if ($type == '1') {
$qry = "SELECT log FROM logs WHERE login = '.$login.'";
$result = mysqli_query($GLOBALS["___mysqli_ston"], $qry);
while($row = mysqli_fetch_assoc($result)){
echo ''.$log.'';
}
} else {
//do nothing
}
?>
There are many errors with your code:
I fixed them.
$type = $_SESSION['SESS_ACC_TYPE'];
$login = $_SESSION['SESS_LOGIN_NAME'];
if ($type == '2') {
$qry = "SELECT `log` FROM `logs`;";
}
if ($type == '1') {
$qry = "SELECT `log` FROM `logs` WHERE `login` = '" . $login . "';";
}
$result = mysqli_query($GLOBALS["___mysqli_ston"], $qry);
while($row = mysqli_fetch_assoc($result)) {
echo base64_decode($row['log']);
}
since mysql 5.6.1 there are mysql base64 decode/encode functions
select FROM_BASE64('....') ...
select TO_BASE64('....') ...
http://base64decode.net/mysql-from-base64