I need to access a remote database from my iPhone. I have an account on iPage, but as far as i know it does not support remoteMySql. I wrote a php script that will connect to the remote database. Currently i run it on localhost and this makes it of no use on the phone. Can someone tell me what is the best solution to my problem. Is there a way to use remote access on iPage, the database is on another server not iPage. Or can i write an api or something that will run on iPage ? The best thing would be if i can find a free webpage that can host my php script. Had one but its not working anymore. Any suggestions ?
<?php
$username = "qqqq";
$password = "qqqq";
$hostname = "qqq.qqq.qqq.qqq";
$dbhandle = mysql_connect($hostname, $username, $password)
or die("Unable to connect to MySQL");
$selected = mysql_select_db("ttbus",$dbhandle)
or die("Could not select examples");
$result = mysql_query("SELECT stations.name, stations.lon, stations.lat, station_display_rows.minutesToArrival,routes.number FROM stations,station_display_rows,routes WHERE stations.id = station_display_rows.stationId AND routes.routeId = station_display_rows.routeId");
while ($row = mysql_fetch_array($result)) {
echo "<h1>";
echo $row{'name'}."<h2>";
echo $row{'lon'}."<h3>";
echo $row{'lat'}."<h4>";
echo $row{'minutesToArrival'}."<p>";
echo $row{'number'};
}
mysql_close($dbhandle);
?>
I am not familiar with iPage, but if you want to access data from a web site, then you should create a REST endpoint that will return your data in JSON format. Your iOS app will then make this connection, grab the data and you can use it in your app. You can store this data in a a local database using Core Data, save it as a file or just use it in memory.
If you need help creating the REST endpoints in PHP, that should be directed to the PHP section or search for some tutorials, there are plenty.
To read the data from your iOS app, you should read this tutorial: NSUrlSession Tutorial DON'T try and use AFNetworking, its overkill for what you need to do.
If you are in shared hosting platform, remote MySQL is not supported in it. It is supported in their VPS/Dedi platform.
Related
I'm a total beginner when it comes to PHP, I have a fair grasp of the syntax but I'm not sure about the safest way to utilise it to connect to my server. I apologise that this is a sort of generic question rather than a code problem, since my code technically works.
I have a .php site doc with a basic comment submission form. The only way I can think of to connect to the server is to allow a "dummy" user with select only privelege to call a stored function to accept the comment.
If my dummy account is called siteuser then am I going round this the right way? This is the section of the PHP that I'm using to connect. I believe this code is only visible server side so nobody can ever see it and use the password or username to connect some other way? Or is there a sort of default string I can use in my php without creating the dummy user, seeing as the php and server is all hosted via the same provider?
$sqlserv = "localhost";
$sqlname = "siteuser";
$sqlpass = "mypassword";
$sqldbdb = "comments_table";
$conn = new mysqli($sqlserv, $sqlname, $sqlpass, $sqldbdb);
What i do is this to connect to my DB
db.php:
<?php
// Load configuration as an array. Use the actual location of your configuration file
$config = parse_ini_file('/somepath/config.ini');
//Mysqli Connection
$conn = new mysqli($config['host'], $config['user'], $config['pass'], $config['dbname']);
if($conn->connect_errno > 0){
die('Unable to connect to database [' . $conn->connect_error . ']');
//Set encoding
mysqli_set_charset($conn, "utf8") or die;
}
?>
and in config.ini:
[database]
user = johndoe
pass = someweirdpassword
dbname = the_name
host = localhost
both files have 700 permissions, so only user (and no one else can access it)
also the config.ini file is placed somewhere outside the public_html directory, i'm not totally sure if that helps or not but i do it that way.
Good day,
I have created an IFTTT receipe that if a "myfox" alarm system is armed, a php script is executed on my NAS (192.165.x.x). The php script is supposed to trigger a stored procedure in my mysql database.
The following PHP script has been tested by other means and I'm sure that it works :
<?php
/*
php_update_mode_armed.php
*****************************************************************************************
* This script updates the value of the components in the table tbl_eedomus_current_mode
* It calls the stored procedure 'sp_tbl_eedomus_current_mode_armed'
*****************************************************************************************
Version 1.00, 09.06.2017, Initial version of the script
*/
mainProcess();
function mainProcess()
{
$ServerIP = "192.165.x.x";
$sqlUser = "domoos";
$sqlDatabase = "domoos";
$pw = "myPass";
// Connect
$mysqli = new mysqli($ServerIP, $sqlUser, $pw, $sqlDatabase);
if(!$mysqli) {[![enter image description here][1]][1]
header('Location: error.php?error=DbConnectionFailure');
die();
}
// Call stored procedure sp_tbl_eedomus_current_mode_armed
if(!$mysqli->query("CALL sp_tbl_eedomus_current_mode_armed ()"))
{
echo "OK";
if($mysqli) $mysqli->close(); // Close DB connection
//header('Location: error.php?error=QueryFailure');
die();
}
if($mysqli) $mysqli->close(); // Close DB connection
}
?>
Below, also, a screen shot of my "then" part of the IFTTT receipe.
Am I doing something wrong here or is the use of IFTTT not fit for the purpose I'm trying to achieve here?
Many thanks for your help on this matter and have a great day.
Most likly IFTTT can't access your NAS from the internet due to home router firewall etc. Also the ip address used in IFTTT shouldn't be a local ip like 192.168.* but your public ip address. You can figure this out by googling for "whats my ip".
Best way to test your setup using your laptop is to disconnect from local wifi network, tether your phone to your laptop and try visiting the NAS ip url to see if it still works. You can use chrome postman app to send out POST requests.
If that's all fine, get PHP to log incoming connections by writing to a file. file_put_contents("log.txt", print_r($_REQUESTS, true));
I would suggest trying with a GET request first with default content type. Good luck!
currently, I am programming an Android app that connects to a php-server. On that server are some php-scripts, which send mysqli_queries and receive responses of remote mysql databases.
<?php
error_reporting(0);
$db_host = $_POST["dbhost"];
$db_uid = $_POST["dbusername"];
$db_pass = $_POST["dbpassword"];
$db_name = $_POST["dbname"];
if ($db_host == "" || $db_uid == "" || $db_pass == "" || $db_name =="" )
echo "Missing information!";
else
{
$con = mysqli_connect($db_host,$db_uid, $db_pass, $db_name);
// Check connection
if (mysqli_connect_error())
die("Couldn't connect to the database!");
else
echo "Connection Successfull";
}
?>
That works without any problems, but now, I need to connect to an intranet first, to get access on a local database.
I thought about a php-script that connects to the intranet (via vpn) and if the connection is established it runs the mysql queries.
After the php-script received the response it disconnects and sends the result back to the Android app. Sadly I've never done that before and Google seems to not know an answer.
I don't want that the whole server connects to the intranet itself, just the scripts are allowed to establish a connection, because other mysqli_queries are executed at the same time.
My question, is that possible?
And if it isn't, is there another solution how to solve my problem?
Thank you pretty much in advance.
The best solution is that you created a web service on your intranet and you consume it from your android device you can enviyer gives them the get method of utl web service.
For the augulenter securiter your web service you can add a variable that you patage between the web service and the android application.
To solve this you have to setup a specific port that will communicate outside or an api and secure it via a public key. More exactly you can just forward a port what can work on http from the server in your intranet. Something like http://address:8888 and pull data through an API . That's the most secure way. Please take this answer into account only if you feel that I understood correctly. If now add a comment and I can still give you some ideas.
I have to build an android app which connects to a remote MYSQL webserver and retrieve information for display purpose.
So I did research coz I had no idea where to start. I read an article it mentions the better approach for that is to use php script. And didn’t know anything about how server, database and php works, so I studied php from here “http://www.homeandlearn.co.uk/php/php12p1.html” to understand and downloaded WhampServer to do some testing. On local machine everything worked fine.
But main thing I don’t understand is “HOW TO CONNECT TO REMOTE SERVER/DATABASE”.
It’s obvious that I’m doing something really stupid, I just need help to find out what am I doing wrong.
When we test php script on local machine in webrowse we use "localhost/some.php." But when I want to test same php script on remoter server from my local machine then what and how should I do? Do I need to make some changes in configuration file on server side?
I have done more research before asking this question here to understand remote server connection in php but I still don’t understand. I have gone through almost all the pages within the link below:
https://www.google.co.uk/search?q=connect+to+remote+mysql+webserver+php&rlz=1C1AVSX_enGB447GB448&oq=connect+to+remote+mysql+webserver+php&aqs=chrome.0.69i57j69i62l3.19724j0&sourceid=chrome&ie=UTF-8#fp=5a2359cf96dc5f79&q=how+to+connect+to+remote+mysql+web+server+php
And help would be much appreciated.
If my question is not clear please let me know I'll try to explain more. or think of it as if you have to connect to a remote MySQL server how would you do , means what is the process and steps involved in that.
Thanks everyone.
Edit
I have created a database "dealt3_raj_test" on remote server. and when I type "examplewebserver.CO.UK/myphpscriptname" in my web browser.
It gives me error "An error occurred , You have reached the error page"
<?PHP
$user_name = "dealt3_raj";
$password = "5dN5nh&eMd(vCR$dzk";
$database = "dealt3_raj_test";
$server = "examplewebserver.CO.UK";
$db_handle = mysql_connect($server, $user_name, $password);
$db_found = mysql_select_db($database, $db_handle);
if($db_handle)
{
print "Connected";
}
else
{
print "Can not connect to server";
}
if ($db_found)
{
print "DataBase found";
}
else
{
print "DataBase not found";
}
?>
Adding onto #user4035's comment, after opening the connection, use JDBC in your Android/Java code to interact with the database.
That said, it is not good practice. Rather create a web service
Your application may experience latency/connectivity issues. This will impact performance.
Your MySQL server will have to be open to remote connections which is strongly advised against
If your Android App is intended for public usage, it means the database username and password of your MySQL server reside on everyone's phone using your app. Encrypted or not this makes your database server a "step less" secure
Well answered here on SO (JDBC vs Web Service for Android)
use this code to connect with data base
$username = "database user name";
$password = "DB password";
$hostname = "hostname";
//connection to the database
$dbhandle = mysql_connect($hostname, $username, $password) or die("Unable to connect to MySQL");
//select a database to work with
$selected = mysql_select_db("data base name",$dbhandle) or die("Could not select examples");
I'm using HostMonster as my web host and I'm trying connect to a database I created using MySQL inside of HostMonster. In order to call that database in my website do I need to use PHP? Or is there a way to create a javascript OnClick function that can call the database. I'm not using ASP.Net so it's not quite as simple as I would like it. Just curious if the best solution is PHP, if so I guess I should go learn it.
what are you planning to do with the database, other than just 'calling it'? You will need some language like PHP to connect to the DB to retrieve, insert, update or delete data in the DB.
here is a code for connection MySQL from PHP using MYSQLI extension
<?php
$dba_host='localhost';
$dba_name='root';
$dba_pass='';
$dba_db='sn';
$con=mysqli_connect($dba_host,$dba_name,$dba_pass,$dba_db) or die('Connection Refused !');
$stmt=mysqli_prepare($con,"SELECT UID FROM Main");
mysqli_stmt_execute($stmt);
mysqli_stmt_bind_result($stmt, $value);
while(mysqli_stmt_fetch($stmt))
$result[] = $value;
mysqli_stmt_close($stmt);
mysqli_close($con);
?>
Your javascript onClick function is running on the client side (in the browser) and the database is running on the server-side. You will need a server-side language to get the information from the database and send it to the browser.
You do not HAVE to use PHP to connect to a MYSQL database. Also, you can't connect to your database using only client-side javascript (ie. an onClick() function). You need to use a server side language, PHP is one choice.
To connect to a MYSQL database on hostmonster using PHP you will need to know your credentials that use to log into phpMyAdmin from your cpanel. Once you have made the connection you can then select the MYSQL database that you created. Once the database is selected you can query it using the "mysql_query" function in PHP. The following code does all of that and stores the results of the MYSQL query in a PHP variable called $result.
<?php
$con = mysql_connect("www.yourdomain.com","phpMyAdmin_username","phpMyAdmin_password");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("mysql_database_name", $con);
$query = "SELECT * FROM TableName"
$result = mysql_query($query);
?>
Now you've got the results of the query inside the PHP variable $result and you can use it anyway you like.
If you put this in your 'public_html' folder and named it 'index.php' or 'index.html' this would automatically be run when someone went to www.yourdomain.com.
You can find a great tutorial series on PHP here http://thenewboston.org/list.php?cat=11.