I've got a weird problem.
I created a website on localhost. Everything was working fine. I could connect to my mysql db without any problems.
I decided to put it on external server to show it to my friends. I changed $username, $dbname etc.
Then I decided to work little with the website back on localhost. And then it started. When I run my script which adds new records to my db (name, message, email) this shows up.
No database selected
Everything is just the same it was before I decided to put it on the server. What can be the problem?
EDIT: Here's the code of connect.php
<?php
$username ="root";
$password = "";
$host = "localhost";
$table = "test";
$conn = new mysqli("$host", "$username", "$password", "$table");
if (!$conn) {
die("Nie udało się połączyć z bazą danych: ".mysqli_connect_error());
}
and here's a script implemented into index.php
<?php
include 'connect.php';
$sql = "SELECT s_id, name, s_like, s_dislike, message FROM suggestions ORDER BY rand()";
$result = mysqli_query($conn, $sql);
$row = mysqli_fetch_assoc($result);
$s_id = $row["s_id"];
$s_like = $row["s_like"];
$s_dislike = $row["s_dislike"];
echo '<p>' . $row["message"] . '</p>';
echo '<h1 class="podpis">' . $row["name"] . '</h1>';
mysqli_close($conn);
?>
and here's the cde of comments.php where I see the message about No database selected.
<?php
$name = $_REQUEST['name'];
$email = $_REQUEST['email'];
$message = $_REQUEST['message'];
$username ="root";
$password = "";
$host = "localhost";
$table = "test";
$conn = mysqli_connect($host, $username, $password, $table);
$query = "INSERT INTO suggestions (name, email, message) VALUES ('$name',
'$email', '$message')";
if (mysql_query($query)) {
echo 'Dodano sugestię!';
header('Location: index.php');
} else{ die(mysql_error());}
mysql_close();
?>
Related
Thank you in advance for your help.
For some reason I cannot get the last record from the Database to show when I retrieve information from it.
This was working just fine until I upgraded from PHP 5 to PHP 7.1
<?php
$servername = "xxxxxxxx";
$username = "xxxxxxxx";
$password = "xxxxxxxx";
$dbname = "xxxxxxxx";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
//Second Half
$sql="SELECT * FROM Online_Customers order by id DESC LIMIT 100";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
?>
fetch_assoc() removed in PHP 7
change
$row = $result->fetch_assoc()
to
$row = $result->fetch_array()
I got this fixed. I removed the if statement and it's working just fine. If someone is having the same problem please let me know and I can guide you through.
I'm trying to show all usernames in the users table onto my index page.
Here is the PHP code:
$result = $db->prepare("SELECT username FROM users");
$result->execute();
while ($row = $db->fetchAll(PDO::FETCH_ASSOC))
{
$user = $row['users'];
$username = $row['username'];
}
echo $user;
echo $username;
I think you are printing username outside of the while loop, so that you're getting the last username every time.
$result = $db->prepare("SELECT username FROM users");
$result->execute();
while ($row = $db->fetchAll(PDO::FETCH_ASSOC))
{
echo $username = $row['username'];
}
Can someone please explain to me how to display a query from a phpmyadmin that uses MariaDB? When I execute this script, the page returns empty. No error messages, nothing. All blank screenshot of the phpamydmin here.
It seems the commands I shall use in PHP must be different from the used in the conventional phpmyadmin.
I've searched in different sites, but it seems MariaDB is not much used.
<?php
$dbhost = 'localhost:3306';
$dbuser = 'santos1q_test';
$dbpass = 'xxxxxx';
$conn = mysql_connect($dbhost, $dbuser, $dbpass);
if(! $conn )
{
die('Could not connect: ' . mysql_error());
}
$sql = 'SELECT * FROM test';
mysql_select_db('santos1q_events');
$retval = mysql_query( $sql, $conn );
if(! $retval )
{
die('Could not get data: ' . mysql_error());
}
while($row = mysql_fetch_array($retval, MYSQL_ASSOC))
{
echo {$row['event_title']};
echo {$row['event_address']};
}
echo "Fetched data successfully";
mysql_close($conn);
?>
When I do an insert from my application all ★ (stars) turns into "★"
How can I stop this from happening?
*It works if I directly insert it through phpmyadmin, but not when doing it using this php:
<?php
$servername = "";
$username = "";
$password = "";
$dbname = "";
$inputTime = mysql_escape_string($_POST['inputTime']);
$inputBotid = mysql_escape_string($_POST['inputBotid']);
$inputImage = mysql_escape_string($_POST['inputImage']);
$inputName = mysql_escape_string($_POST['inputSkin']);
$inputStatus = mysql_escape_string($_POST['inputStatus']);
$inputTradeid = mysql_escape_string($_POST['inputTradeid']);
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "INSERT INTO items (trade, market_hash_name, status, img, botid, time)
VALUES ('$inputTime', '$inputName', '$inputStatus', '$inputImage', '$inputBotid','$inputTime')";
if ($conn->query($sql) === TRUE) {
echo "Success";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>
You have Mojibake. Search this Q&A for 'Mojibake' to see what causes and how to prevent it.
Since you are into symbols, you might want to use utf8mb4, not just utf8 in MySQL. The former includes various 4-byte Emoji.
Also, see PHP tips. The most important is $mysqli_obj->set_charset('utf8mb4'); right after connecting.
How i can send $country to second code (select emr_value from countries where country_name='$country') i don't know why $country = "" or null please help
thanks
<?php
$servername = "localhost";
$username = "root";
$password = "root";
$dbname = "db";
global $country;
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT meta_value FROM `wp_usermeta` where user_id=$user_id and meta_key='custom_field_6' ";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
$country = $row["meta_value"];
echo $country;
}
} else {
echo "0 results";
}
$conn->close();
?>
Second Code (Here i want to display data for this query (select emr_value from countries where country_name='$country'))
<?php
$servername = "localhost";
$username = "root";
$password = "root";
$dbname = "db";
global $country;
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "select emr_value from countries where country_name='$country'";
$result = $conn->query($sql);
while($row = $result->fetch_assoc()) {
$emr_value = $row["emr_value"];
echo "<h1>EMR : " . $emr_value . "</h1>";
}
$conn->close();
?>
Maybe you should have only one code:
<?php
$servername = "localhost";
$username = "root";
$password = "root";
$dbname = "db";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT meta_value FROM wp_usermeta WHERE user_id='$user_id' AND meta_key='custom_field_6'";
$result1 = $conn->query($sql);
if ($result1->num_rows > 0) {
// output data of each row
while ($row1 = $result1->fetch_assoc()) {
$country = trim($row1["meta_value"]);
$sql = "SELECT emr_value FROM countries WHERE country_name='$country'";
$result2 = $conn->query($sql);
while ($row2 = $result2->fetch_assoc()) {
echo "<h1>EMR : " . $row2["emr_value"] . "</h1>";
}
}
} else {
echo "0 results";
}
$conn->close();
?>
Or create two functions in one code: one that returns $country and one that returns emr_value.