I try to make a simple IOS app that can connect to mysql database and read one table. But my php code does't work and really have no idea why, it's seems correct to me. The database is in a raspberry phpmyadmin server and the server works great.
I will put my code here and please tell me what's wrong.
<?php
$host = "192.168.2.193";
$db = "produtos";
$user = "root";
$pass = "1234";
$connection = mysql_connect($host, $user, $pass);
if(!$connection)
{
die("Database server connection failed.");
}
else
{
//attempt to select the database
$dbconnect = mysql_select_db($db, $connection);
//check to see if we could select the database
if(!dbconnect)
{
die("Unable to connect to the specified database!");
}
else
{
$query = "SELECT * FROM produtos";
$resultset = mysql_query($query, $connection);
$records = array();
//loop throught all our records and add them to our array
while ($r = mysql_fetch_assoc($resultset))
{
$records[] = $r;
}
echo json_ecode($records);
echo $resultset;
}
}
?>
Based on the question:
use mysqli_connect rather than mysql_connect because mysql_connect is deprecated and will not work someday. Also what is the the error you are getting? change your die() statement to something more helpful die(mysqli_error($connection));
Based on your comment:
That error would suggest that you either A) don't have the right IP address or B) there is a network issue between your host server and the SQL server, is this code running on the same server that is hosting the SQL database? if so then you can probably just use localhost for your $host
Related
i have firebird server and firebird database installed on windows server. port on this db is 8095. On this server i have installed PHP, and i need connect on this DB with php, here is my code which i tried but not success:
<?php
$host = 'localhost:D:\path\to\Database.FDB';
$username = 'user';
$password = 'pass';
$dbh = ibase_connect($host, $username, $password);
$stmt = 'SELECT * FROM StoreCards';
$sth = ibase_query($dbh, $stmt);
while ($row = ibase_fetch_object($sth)) {
echo $row->Code, "\n";
}
ibase_free_result($sth);
ibase_close($dbh);
?>
can you help me please?
thanks a lot
EDIT :
working with this code :
$dbh = ibase_pconnect("ipaddr:path-to-db.FDB", "user", "pass") or die('die message');
$q = ibase_query($dbh, "select * from StoreCards");
while ($r = ibase_fetch_object($q)) {
$some_value = $r->CODE;
echo $some_value;
}
As long as you said the Firebird runs on a non standard 8095 port (usually it is 3050), you should specify it in ibase_connect. Something like ibase_(p)connect('host/port:path_or_alias', ... Also check if the port is accessible, no block firewall rules, etc..
So:
$host = 'localhost/8095:D:\path\to\Database.FDB';
I have been playing around for PHP with a while. This is how i connect to sql server and it works:
$serverName = "SNAME";
$connectionInfo = array( "Database"=>"DBNAME", "UID"=>"USERNAME", "PWD"=>"PASSWORD");
$conn = sqlsrv_connect( $serverName, $connectionInfo);
$sql = "SELECT X FROM myTable";
$query = sqlsrv_query($conn,$sql);
if ($query === false){
echo "Could not link to SQL Server";
}
while ($row = sqlsrv_fetch_array($query))
{
$ARRAY[] = "$row[X]";
}
Server SNAME is on the local network, and i can connect to it from my computer using Sql Management Studio.
Now looking online and other places I have realized PDO is the better way to go. So I have been trying to connect to my server using PDO, by following examples online. Here is the code:
$username = "USERNAME";
$password = "PASSWORD";
try{
$conn = new PDO('mysql: host=SNAME;port=1433;dbname=DBNAME',$username,$password);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$data = $conn->query('SELECT X FROM myTable');
foreach($data as $row) {
print_r($row);
}
}
catch{
echo 'ERROR: ' . $e->getMessage();
}
When i run this i get this on my page:
ERROR: SQLSTATE[HY000] [2002] No connection could be made because the
target machine actively refused it.
Now i know my other information is right since i can use the top block and sql management studio. Is there anyother library or something special needed. Is there problem with my code?
UPDATE
I ran this in my SQL Management Studio to check my port and it gave me 1433.
SELECT DISTINCT local_tcp_port FROM sys.dm_exec_connections WHERE local_tcp_port IS NOT NULL
In one example, you are using sqlsrv_connect, but in the other you tell PDO to connect to a 'mysql:' database.
You need to use the correct DSN string for a SQL Server connection.
$conn = new PDO('sqlsrv:Server=SNAME,1433;Database=DBNAME',$username,$password);
Manual: http://php.net/manual/en/ref.pdo-sqlsrv.connection.php
P.S. Make sure you have PDO_SQLSRV installed. http://php.net/manual/en/ref.pdo-sqlsrv.php
I need to get some data from a Microsoft SQL Server database at work. When I have the data I need, I need to make an Excel spreadsheet that can be saved locally on my computer.
I found PHPExcel which seems to do the job on the Excel part, but what about getting the data from the Database?
I can't seem to find anything that's recent. Only old tutorials.
Use this way to Fetch the Records :
<?php
$hostname = "192.168.3.50";
$username = "sa";
$password = "123456";
$dbName = "yourdb";
MSSQL_CONNECT($hostname,$username,$password) or DIE("DATABASE FAILED TO RESPOND.");
mssql_select_db($dbName) or DIE("Database unavailable");
$query = "SELECT * FROM dbo.table";
$result = mssql_query( $query );
for ($i = 0; $i < mssql_num_rows( $result ); ++$i)
{
$line = mssql_fetch_row($result);
print( "$line[0] - $line[1]\n");
}
?>
This will fetch each rows from the Data Retrieve and Print on the Page. Use your Required format into that. I mean, Use html Table to show the data in well format.
Use this code to get an data from Database.
<?php
// Server in the this format: <computer>\<instance name> or
// <server>,<port> when using a non default port number
$server = '192.168.3.50';
// Connect to MSSQL
$link = mssql_connect($server, 'sa', 'sa');
if (!$link) {
die('Something went wrong while connecting to MSSQL');
}
else{
echo "connected ";
mssql_select_db('Matrix') or die("Wrong DATAbase");
//mssql_query("SELECT Seq_no from dbo.Trans_R WHERE Seq_no = 000001",$link) or die("cannot execute the query");
$query = mssql_query("SELECT Tr_Date,Tr_Time,Tr_Data from Matrix.dbo.Trans_R");
$f = mssql_fetch_array($query);
echo $f['Tr_Date'];
}
?>
Can i know why Negative Vote??
He asked me to :
" but what about getting the data from the Database?"
How would I connect to the demo phpmyadmin server in php? My code looks like this.
<?php
$host = 'http://demo.phpmyadmin.net/STABLE/';
$dbname = 'shubham';
$user = 'root';
$pass = '';
// Attempt to connect to database.
try {
$DBH = new PDO("mysql:host={$host};dbname={$dbname}", $user, $pass);
} catch(PDOException $e) {
echo $e->getMessage();
}
?>
but I get this as my error
QLSTATE[HY000] [2005] Unknown MySQL server host 'http://www.demo.phpmyadmin.net/STABLE/' (1)
You seem to be confusing two things:
the demo phpMyAdmin front-end that is backed by a db server and db/schema
the db server and schema itself
PDO needs the latter, the db server itself.
Inspecting the front-end code of the demo, I don't see anything in there that would give us the actual connection details for the db server. And that's as I would expect: I find it hard to believe that the makers/maintainers of the phpMyAdmin demo would make their actual db server available for public remote connections.
change your hostname from
$host = 'http://demo.phpmyadmin.net/STABLE/';
to your original remote hostname like eg $host = 'ukld.db.5510597.hostedresource.com';
MySQL does not work on HTTP
<?php
$host = 'demo.phpmyadmin.net';
// High chances that this is NOT your mysql hostname.
// It will not even by like /STABLE/ as you mentioned it.
$dbname = 'shubham';
$user = 'root';
$pass = '';
// Attempt to connect to database.
try {
$DBH = new PDO("mysql:host={$host};dbname={$dbname}", $user, $pass);
} catch(PDOException $e) {
echo $e->getMessage();
}
?>
I am just using a basic code to connect to my Mysql database. I am able to connect to my server but not database. using sqlyog:
<?php
$username = "root";
$hostname = "localhost";
$dbhandle = mysql_connect($hostname, $username) or die("Unable to connect to MySQL");
$selected = mysql_select_db("project",$dbhandle) or die("Could not select project");
$sql = "SELECT image_small FROM images";
mysql_query($sql,$selected);
while($row=extract_row($sql))
{
echo $row['image_small'];
}
?>
where is password of database? mysql_connect should be used as:
mysql_connect("localhost", "mysql_user", "mysql_password");
otherwise it will be the default password that will be used
There are so many things wrong here.
1. Your have a blank password for the root user in your database.
2. You're using mysql_* which everybody know is subject to many hasck.
3. You're trying to "extract" a row from your SQL query.
Use PDO:
$DB = new PDO("mysql:host=localhost;dbname=project","root","root_password");
$sql = "SELECT image_small FROM images";
foreach($DB->query($sql, PDO::FETCH_ASSOC) as $row) {
echo $row['image_small'];
}
try to connect using the following statement
$selected = mysql_select_db("project");
// i think you have to provide password in here mysql_connect($hostname, $username,$password);
since it is localhost and user is root you could use like this
mysql_connect($hostname, $username,"");