For some reason I made a query and the the query isn't executing, I tested it in the code to see if the query would execute and if it can't, to display a message and it displays the message.
I will post all the information below!
$_POST:
Code:
ini_set('display_errors',1);
error_reporting(E_ALL);
echo "<pre>";
var_dump($_POST);
echo "</pre>";
$mysqli = new mysqli("localhost", "lunar_casino", "******", "lunar_casino");
if(isset($_POST['submit'])){
$error = array();
if(empty($error)){
$bonus = $_POST['bonus'];
$deposit = $_POST['deposit'];
$offers = $_POST['offers'];
$link = $_POST['link'];
$name = $_POST['logo'];
$q = $mysqli->query("INSERT INTO `lunar_casino`.`casino` VALUES(NULL, '$bonus', '$deposit', '$offers', '$link', '$logo', '$name', NULL)");
if(!$q){
echo "<font color='red'><b>There has been an error with our database! Please contact the website administrator!</b></font><br /><br />";
} else {
echo "<font color='green'><b>You have successfully added the casino!</b></font><br /><br />";
}
} else {
echo "<font color='red'><b>There were ".count($error)." errors in your form:</b></font><br />";
foreach($error as $err){
echo "<b>".$err."</b><br />";
}
echo "<br />";
}
}
Structure of Database:
If you need more information just let me know!
By the way, the way I know the error is in the query is because I checked if(!$q) and made it display an error message if the query can't be done, and it displays the error message on the page.
Any ideas why its not working? Also I left out date from the query because I don't know how to add the current date:time into the query.
If anyone could help with either of these issues please let me know! :)
Start by checking for errors on connection
e.g
$db = new mysqli('localhost', 'user', 'pass', 'lunnar_casino');
if($db->connect_errno > 0){
die('Unable to connect to database [' . $db->connect_error . ']');
}
Then execute your query and make sure you're using mysqli errors function to return occurred errors
e.g
$sql = <<<SQL
SELECT *
FROM `students`
WHERE `marks` < 10
SQL;
if(!$result = $db->query($sql)){
die('An error occured [' . $db->error . ']');
}
Let me know if this worked for you, I will add more information if needed.
Related
I wan to insert data to mysql table from another database which is connected via ODBC.But I cannot enter into the while loop, here is my code -
N.B: For security I dont provide db name, user and pass.
ODBC connection declared as 'connStr'
<?php
$connStr = odbc_connect("database","user","pass");
$conn = mysqli_connect("server","user","pass","database");
//$result_set=mysqli_query($conn,$datequery);
//$row=mysqli_fetch_array($result_set);
echo "<br>";
echo "<br>";
$query="select cardnumber, peoplename, creditlimit, ROUND(cbalance,2) as cbalance, minpay from IVR_CardMember_Info
where cardnumber not like '5127%'" ;
$rs=odbc_exec($connStr,$query);
$i = 1;
while(odbc_fetch_row($rs))
{ //echo "Test while";
$cardnumber=odbc_result($rs, "cardnumber");
$peoplename=odbc_result($rs, "peoplename");
$creditlimit=odbc_result($rs, "creditlimit");
$cbalance=odbc_result($rs, "cbalance");
$minpay=odbc_result($rs, "minpay");
$conn = mysqli_connect("server","user","pass","database");
$sql= "INSERT INTO test_data(cardnumber, peoplename, creditlimit, cbalance, minpay) VALUES ('cardnumber', 'peoplename', 'creditlimit', 'cbalance', 'minpay') ";
if(!(mysqli_query($conn,$sql))){
//echo "Data Not Found";
echo "<br>";
}
else{
echo "Data Inserted";
echo "<br>";
}
echo $i++ ;
}
echo "<br>";
odbc_close($connStr);
?>
How can I solve this?
If you really want to understand why you can't enter while() {...}, you need to consider the following.
First, your call to odbc_connect(), which expects database source name, username and password for first, second and third parameter. It should be something like this (DSN-less connection):
<?php
...
$connStr = odbc_connect("Driver={MySQL ODBC 8.0 Driver};Server=server;Database=database;", "user", "pass");
if (!$connStr) {
echo 'Connection error';
exit;
}
...
?>
Second, check for errors after odbc_exec():
<?php
...
$rs = odbc_exec($connStr, $query);
if (!$rs) {
echo 'Exec error';
exit;
}
...
?>
you can do it with just SQL check it here, like:
INSERT INTO test_data(cardnumber, peoplename, creditlimit, cbalance, minpay)
SELECT cardnumber, peoplename, creditlimit,
ROUND(cbalance,2) as cbalance, minpay from IVR_CardMember_Info
where cardnumber not like '5127%'
I am trying to input data to MySQL using PHP. Don't know what's wrong. The connection succeeds, no errors but at the end there is not data being written to the database.
$dbhost = "localhost";
$dbname = "listings";
$un = $_POST["un"];
$pass = $_POST["pass"];
$name = $_POST["name"];
$des = $_POST["des"];
$quan = $_POST["quantity"];
$specs = $_POST["specs"];
$price = $_POST["price"];
$url1 = ".";
$url2 = ".";
$url3 = ".";
$url4 = ".";
$connection = mysqli_connect($dbhost,$un,$pass,$dbname);
if (!$connection) {
die("Error".mysqli_error);
} else {
echo "Database connection successfull ".$des;
}
$query = "INSERT INTO items
(name,description,quantity,specs,price,url1,url2,url3,url4) VALUES
'$name','$des','$quan','$specs','$price','$url1','$url2','$url3','$url4')
";
echo "Hellos";
$exeute_query = mysqli_query($query,$connection);
if(!execute_query){
die("error ".mysqli_error());
echo "query error";
} else {
echo "Query successfull";
}
mysqli_close($connection);
Any help?
There are several small mistakes in your code:
$query = "INSERT INTO items (name,description,quantity,specs,price,url1,url2,url3,url4) VALUES ('$name','$des','$quan','$specs','$price','$url1','$url2','$url3','$url4')";
echo "Hellos";
**$exeute_query** = mysqli_query($query,$connection); // $execute_query instead of $exeute_query
if(!**execute_query**){ //$execute_query instead of execute_query
die("error ".mysqli_error());
echo "query error";
}
else{echo "Query successfull";}
mysqli_close($connection);
?>
Your code breaks at the if statement because no fucntion with that name is found (if you do not use the dollarsign to show it is a variable, php will interpret it as a function. Also, when initiating your variable you forgot a 'c' so make sure to check if you have the correct variable name or php won't find your variable. Now your query will work or give an error message in case of wrong data formats or bad connection. Use code listed below to debug your php in the future.
error_reporting(E_ALL);
ini_set('display_errors', 'On');
I have been working on a website which has a xampp server and a database called users with a table called AccountDetails. About a year ago I got it to work perfectly, but the server I was using then required MySQL not MySQLi. Now I have to use MySQLi and can't even get the simplest of sql's SELECT function to work, any ideas would be much appreciated.
<?php
$link = mysqli_connect("localhost:3306", "root","", "users");
if(mysqli_connect_errno($link)){
echo "MySql Error: " . mysqli_connect_error();
} else {
echo"Connection Successful <br></br>";
}
echo("Check if still working <br></br>");
// -----------------------------//
echo("Its running <br></br>");
$result = $link->query("SELECT ID, UserName FROM AccountDetails");
return $result->result();
var_dump($result);
mysqli_close($link);
?>
The Query itself works when I plug it into the phpmyadmin SQL section and it returns the values that I expect it too.
I've spent days looking online for different answers but none of them work, and the var_dump only gives me "bool(false)" which I don't think I should be getting.
You can try this code
<?php
$link = mysqli_connect("localhost:3306", "root","", "users");
if(mysqli_connect_errno($link)){
echo "MySql Error: " . mysqli_connect_error();
} else {
echo"Connection Successful <br></br>";
}
echo("Check if still working <br></br>");
// -----------------------------//
echo("Its running <br></br>");
$sql_select = "SELECT * FROM AccountDetails";
$result = $link->query($sql_select);
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
echo "UserName: " . $row['UserName']. "<br>";
}
} else {
echo "No Records";
}
$link->close();
?>
I am doing a little bit of learning on mysql, php and the like. I'm using a shared hosting plan so am quite limited from a settings changes point of view.
I am attempting to run a simple mysql select command through PHP, but all i get back is a blank error
<?php
$typeID = $_GET['tid'];
//variables for the database server
$server = "localhost";
$user = "codingma_rbstock";
$pwd = "M#nL%V{%RI+h";
$db = "codingma_rbstock";
//variables for the database fields
$itemNo;
$itemNm;
$itemDesc;
$buyPr;
$sellPr;
$quan;
$dept;
//database connection
//create connection
$conn = new mysqli($server, $user, $pwd, $db);
//if the connection fails throw an error.
if ($conn->connect_error){
die("Connection Failed: " . $conn->connect_error);
}
echo "Welcome to " . $typeID . "<br>";
$sql = "select ITEM_NAME from stock where ITEM_NO='00001'";
if ($conn->query($sql) === TRUE){
$res = $conn->query($sql);
if ($res->num_rows > 0){
echo "success";
}
}else{
echo "Error: " .$sql . "<br>" . $conn->error;
}
echo $res;
?>
I have checked and it seems to be connecting to the database fine (I changed a few account details to see if that threw a different error and it did).
I am sure I am missing something completely obvious here! The below is the text output from the error;
Error: select ITEM_NAME from stock where ITEM_NO='00001'
Thanks for any help.
your problem is in this line
if ($conn->query($sql) === TRUE){
you are doing a variable type check ( === ), the result of that comparision will always fail because, for as long as you have data in your table and your query doesn't fail $conn->query($sql) will not return a boolean value
mysqli::query documentation says:
Returns FALSE on failure. For successful SELECT, SHOW, DESCRIBE or EXPLAIN queries mysqli_query() will return a mysqli_result object. For other successful queries mysqli_query() will return TRUE.
You are using here a SELECT, therefore a successfull result won't be boolean
Try switching to
if ($conn->query($sql) == TRUE){
Or even better remove that if completely
EDIT
The better approach for that part of the code is:
$res = $conn->query($sql);
if ($res->num_rows > 0){
echo "success";
}
if ($res === false) {
echo "Error: " .$sql . "<br>" . $conn->error;
}
I created a form using php, mysql and xampp server. The problem is that whatever I write in this form it shows that the "message failed to send" and even when I check my db using http://localhost/phpmyadmin/ the message is not there. Here is the code.
P.S I followed a video tutorial and it is exactly the same that made me totally lost. Please help.
The Connection code is:
<?php
$db_host = 'localhost';
$db_user= 'root';
$db_pass= 'the password';
$db_name= 'chat';
if ($connection= mysql_connect($db_host, $db_user, $db_pass)) {
echo "Connected to Database Server...<br />";
if ($database= mysql_select_db($db_name, $connection)) {
echo "Database has been selected... <br />";
} else {
echo "Database was not found. <br />";
}
} else {
echo "Unable to connect to MYSQL server.<br />";
}
?>
And the function code is:
<?php
function get_msg() {
$query = "SELECT 'Sender', 'Message' FROM 'chat' . 'chat'";
$run = mysql_query($query);
$messages= array();
while($message = mysql_fetch_assoc($run)) {
$messages[]= array ('sender' =>$message['Sender'],
'message'=>$message['Message']);
}
return $messages;
}
function send_msg($sender, $message) {
if(!empty($sender) && !empty($message)){
$sender = mysql_real_escape_string($sender);
$message = mysql_real_escape_string($message);
$query = "INSERT INTO 'chat'.'chat' VALUES (null, '{$sender}', '$message')";
if($run = mysql_query($query)) {
return true;
} else {
return false;
}
} else {
return false;
}
}
?>
I have found the problem in your SQL query:
$query = "INSERT INTO 'chat'.'chat' VALUES (null, '{$sender}', '$message')";
You have to specify the fields there, the SQL query is invalid. Also you have used the wrong escape characters. This works:
$query = "INSERT INTO `chat`.`chat` (`ID`, `sender`, `message`) VALUES (null, '{$sender}', '$message')";
You do not have to specify a null value if you use AUTO_INCREMENT:
$query = "INSERT INTO `chat`.`chat` (`sender`, `message`) VALUES ('{$sender}', '$message')";
And please use MySQLi instead of MySQL because it is deprecated. Furthermore, the database should not be specified twice, simple use:
$query = "INSERT INTO `chat` (`sender`, `message`) VALUES ('{$sender}', '$message')";
$query = "INSERT INTO `chat`.`chat` VALUES (null, '{$sender}', '$message')";
Note the ` and it's not '
I am a novice in PHP and MySQL so I tend to always explicitly exit or die on MySQL on errors.
<?php
$db = new mysqli('host', 'username', 'password', 'db');
if($db->connect_errno > 0){
die('Unable to connect to database [' . $db->connect_error . ']');
// no reason to continue, no db connection
}
$statement="SELECT * from `bufferlines` WHERE `beloeb` >'-400' AND `tekst` LIKE 'Dankort-nota SuperB%'";
if(!$res=$db->query($statement)){
printf("Error: %s\n", $db->error); //show MySQL error
echo "<br />".$statement; // show the statement that caused that error
exit("Error 4");//no reason to continue, show where in code
}
?>
This way I get it thrown in my face and cannot get any further until I have pinned down and corrected the error.
The number in exit("Error 4") is only to find the place in the code where it went wrong and thus is unique.
I know this is counter productive when you know your stuff, but for me it's an invaluable learning tool together with php.net dev.mysql.com and stackoverflow.com