PHP - Connecting 2 Databases On Different Hosts
Dear All,
I am having 2 different DB on 2 different hosts. I am running MySQL Server on my local PC where the user is entering data in the tables. I have a website which has the identical DB on the web. I am able to connect to the database by using the codes on the server. I want to update the server DB with the local system DB by running one update command. I get the error "-SELECT command denied to user 'localusername'@'localhost' for table 'pst_data'" Given below is the code used for the process : //connecting the remote system DB $link = mysql_connect('IPAddress:3306', 'remoteusername', 'Password'); if (!$link) { die('Not connected : ' . mysql_error()); } $db_selected = mysql_select_db('remotedb', $link); if (!$db_selected) { die ('Can\'t use Remote System DB: ' . mysql_error()); } //connecting the local database on the webstite $weblink = mysql_connect("localhost","localusername","password"); if (!$weblink) { die('Not connected : ' . mysql_error()); } $webdb_selected = mysql_select_db('localwebdb', $weblink); if (!$webdb_selected) { die ('Can\'t use WebServer Database : ' . mysql_error()); } //query to fetch the records from remote ystem and insert into local website database $upd_Query=mysql_query("INSERT INTO localwebdb.`table` SELECT * FROM remotedb.`table` where field=' some condition' "); --------------------------------------------------- I have tested that I have connected the remote DB by running queries on the webserver. Could anyone bail me out so that i can copy the DB from remote to local Any help would be appreciated Similar TutorialsHello again guys! What if i have 2 databases, db1 and db2. i want to read raw data from db1 and match it's content with data from db2, then produce some information. How can i do it at the same time? I know that to be able to access mysql data, we have to use the mysql_connect() and mysql_select_db(). mysql_select_db() only allows to connect to single database. what should i do? thanks for your help in advance. Hello, I'm using this code in a php file to connect to 2 databases (something that I need to do): $conn_local = mysql_connect('localhost','root','',TRUE); $conn_local2 = mysql_connect('localhost','root',''); mysql_select_db('db1',$conn_local); mysql_select_db('db2',$conn_local2); I'm then trying to use this code to call it from the 1st Database: $sql = "SELECT * FROM news_items ORDER BY news_date DESC LIMIT 0,$limit"; $result = mysql_query($sql,$conn_local); if(mysql_num_rows($result)!=0){ while($row = mysql_fetch_array($result)) ...etc Although I am getting this error: Quote Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in C:\xampp\htdocs\test\includes\function.php on line 17 If I ONLY include the 1 database and don't bother putting the ',$conn_local' into the mysql_query it will work fine and return the records needed. It only seems to be when I try and include more than 1 database. Any ideas where I'm going wrong? Thanks. is it possible to have two open connections to two different mysql dbs at the same time? when i tried it, only the one on the bottom of the list was active. my config file looks like this: //---------------------------------------------// $dbname = 'xxx'; # Database Name $dbuser = 'xxx'; # Database Username $dbpass = 'xxx'; # Database Password $dbhost = 'xxx'; # Database Host $conn2 = mysql_connect($dbhost,$dbuser,$dbpass) or die ("Could not connect to $dbname: ".mysql_error()); mysql_select_db($dbname) or die ("Could not access the database: ".mysql_error()); $dbname5 = 'yyy'; # Database Name $dbuser5 = 'yyy'; # Database Username $dbpass5 = 'yyy'; # Database Password $dbhost5 = 'yyy'; # Database Host $conn = mysql_connect($dbhost5,$dbuser5,$dbpass5) or die ("Could not connect to $dbname5: ".mysql_error()); mysql_select_db($dbname5) or die ("Could not access the database: ".mysql_error()); //--------------------------------------// so i want to be able to do mysql_query($query,$conn2) when i need to access xxx db, but it doesn't seem to work that way. am i doing something incorrectly? any help would be greatly appreciated. I hope this is a good place to post this. I saw another old post that was web host related so I thought this one might fit here too.
I am hoping someone could give me some advice on the best web hosts out there for PHP and LAMP. For now I am looking for a shared server that will allow me to experiment with using PHP to generate X3D scenes as well as to hone my HTML5, PHP, and javascript skills. I will be the only person using the site.
Important factors include cost, reliability (up time), reasonable speed, support, and the latest versions of PHP etc. I looked through a lot of "best of" lists but they all seem to be supported by advertising and discount deals from the hosts, so I have doubts about their objectivity.
Thanks.
im trying to make an art gallery site for my sister with free hosting, i need upload_max_filesize to be at least 3mb ive tried many free hosting services and they are all 1.5mb ive tried changing it with .htaccess files and php.ini files, seems the free hosts are cracking down on that stuff does anyone know of a free hosting service that has at least 3mb upload_max_filesize? or perhaps someone knows of a service where it can be changed with php.ini files or .htaccess files Hi guys, hoping you can help. Iv recently moved a site from one server to another. Needless to say this site encountered a few errors when the move was done. I believe i have corrected most of these errors but now it is as though the mysql data base isnt connecting correctly with the site. I can see the category's on the site but when i click on a category the products do not display. Its almost as though the info is not being pulled through from the data base. Im at a complete loss! It was originally on a site running MYSQL5.0.92 old and the new site is running 5.1.56 new.Not sure if that makes a difference. Any help greatly needed/appreciated Hello, I am looking for a push in the right direction. I would like to be able to view a website that is duplicated on many servers by specifying the IP address. Similar to how one would use the hosts file. I can do this using netcat nc 1.2.3.4 80 Host: example.com GET /contact-us.html <CR><CR> Can someone tell me how I would go about porting this to PHP? I would just like to set up a small page on my webserver where I can enter the domain and IP address and have the page displayed back to me. Thanks Colin Hi guys. This is my first question on phpFreaks (the other 900+ posts I've made were always an attempt to help someone else) Here's the issue: when using gethostbyaddr($_SERVER['REMOTE_ADDR']) on a local machine (current using MAMP on OS X) the name returned is not the first entry in my /etc/hosts file. (On php.net there's another person also commenting on this and saying that apparently gethostbyaddr() selects a random entry from the file.) This is not really an issue, since everything will work fine on my FreeBSD production server where each IP address has only one DNS record (I'm building the company's intranet, so I know exactly what's in our DNS tables) but I'm curious to know if anyone has had the same issue/problem and if there's a way around it. (Logic/Common sense tells me the first record should be the one returned) Currently I have the following information in my /etc/hosts file: Code: [Select] 127.0.0.1 localhost 127.0.0.1 iSy 255.255.255.255 broadcasthost ::1 localhost fe80::1%lo0 localhost # Other names for testing purposes 127.0.0.1 name1.blablabla.com 127.0.0.1 name2.blablabla.com 127.0.0.1 name3.blablabla.com 127.0.0.1 name4.blablabla.com 127.0.0.1 name5.blablabla.com 127.0.0.1 name6.blablabla.com 127.0.0.1 name7.blablabla.com 127.0.0.1 name8.blablabla.com the value returned is always line 8: name2.blablabla.com. If I comment out that line, then it moves 'randomly' to line 12: name6.blablabla.com and sticks with it even if I shut down the servers and then boot up again. any ideas? cheers. Hello, I'm attempting to write a PHP script to query WMI for an IP address of a host. The reason I'm doing this instead of getbyhostname is because NAT translations on the network can cause inaccurate results. The question is two-fold: 1) My Script is as follows <? $obj = new COM ( 'winmgmts://localhost/root/CIMV2' ); $wmi_network = $obj->ExecQuery("Select * From Win32_NetworkAdapterConfiguration"); foreach ( $wmi_network as $wmi_call ) { $ipaddr = $wmi_call->IPAddress; echo $ipaddr; } ?> I get the following error when running the script: Quote Catchable fatal error: Object of class variant could not be converted to string 2) How do I go about querying a remote host on the network with valid credentials? Thank you Hi, I'm thinking about finding a free host and using a free sub domain to build and test the php-database stuff... Along with learning php and mysql stuff I've already got a lot of the php stuff setup but my file paths are all wrong. Is there anything I should do while I'm building this part of my site to make sure it still works when I move it to a permanent home ? So far I know that I shouldn't use the full path but instead something like assets/php/reallycomplex.php Once its complete and I have all of my info in the database my plan is to move to a real host and get a real domain name instead of the sub domain. Are there any other things I should know? Thanks for the advice. Just wondering, which is better php databases or sql? I have phpMyAdmin and I've that you can convert the database into php scripts? ok , here is my mysql code to get all posts from the posts table . Code: [Select] $query = mysql_query("SELECT id,to_id,from_id,post,type,state,date FROM posts WHERE state='0' ORDER BY id DESC LIMIT 50"); and here is the code to display the users friends... Code: [Select] $sqlArray = mysql_query("SELECT friend_array FROM myMembers WHERE id='" . $logOptions_id ."' LIMIT 1"); while($row=mysql_fetch_array($sqlArray)) { $iFriend_array = $row["friend_array"]; } $iFriend_array = explode(",", $iFriend_array); if (in_array($id, $iFriend_array))see now i got as far as , if(in_array($id, $iFriend_array)) How would i put these togeather to where it would get the posts from the posts table that there friends posted? I have just read my upcoming modules for my final year at uni and 'multimedia databases' is one of them. I am just wondering if any of you had any clue on what a multimedia database is? I am guessing it's a database populated with directory data, but that would be to simple... I'm trying to connect to two databases and I'm having problems with the following code. I googled to come up with this but can't figure out the errors I'm getting. Code: [Select] $connection="localhost"; $username="user"; $password="password"; $database1="dbone"; $database2="dbtwo"; $db1 = mysql_connect($connection,$username,$password) or die(mysql_error()); $sel1 = mysql_select_db($database1, $db1); $query1 = "SELECT * FROM TBLUSERS"; $result1 = mysql_query($query1, $db1); while($nt1 = mysql_fetch_array($result1, $db1)) { } $db2 = mysql_connect($connection,$username,$password) or die(mysql_error()); $sel2 = mysql_select_db($database2, $db2); $query2 = "SELECT * FROM TBLPD20101101"; $result2 = mysql_query($query2, $db2) or die(mysql_error()); while($nt2 = mysql_fetch_array($result2, $db2)) { } The error I get is Quote Warning: mysql_fetch_array() expects parameter 2 to be long, resource given in C:\xampp\htdocs\HighVisibility\DashBoard2.php on line 13 Warning: mysql_fetch_array() expects parameter 2 to be long, resource given in C:\xampp\htdocs\HighVisibility\DashBoard2.php on line 22 I have a site where I need to have lets call it image1 displayed, then I want to change this image based on a php if statement, for instance: if $var == $var2 change the image ....blah blah so I was also going to have the names of my images stored in my database, i.e. image1.jpg and image2.jpg in my database. the image is in its own div tag set as the background image of the div tag if that makes any diference. Thanks Hi, I am in the procress of creating discussion system however I am a bit puzzled about the best way to go about it. I am starting the discussion by creating an ID number and then match the answer to the initial ID number. However, I dont know whether if is best to put the responses into a different database. I'm a bit puzzled how ID matching systems works. Lets say: Question 1 = ID1 Question 2 = ID2 Question 3 = ID3 Question 1 Answer 1 = ID4 (How is this matched to ID1) Question 2 Answer 1 = ID5 (How is this matched to ID2) is this based on preg_match? What would be the fastest way to search 2+ databases with the same search information? Each database is different, and may return different information. right i did this code <table width="400" border="1" align="center" cellpadding="2" cellspacing="0" bordercolor="#000000" class=thinline> <tr class="header" background="includes/grad.jpg"> <td height="20" colspan="3" background="includes/grad.jpg" class=header><div align="center" class="header">Last 10 Kills</div></td> </tr> <tr class="header" background="includes/grad.jpg"> <td width="166" height="20" background="includes/gradgrey.jpg">Name</td> <td width="157" height="20" background="includes/gradgrey.jpg">Rank</td> <td width="157" height="20" background="includes/gradgrey.jpg">Killed Time</td> </tr> <? $c=mysql_query("SELECT * FROM attempts WHERE outcome='Dead' ORDER BY id DESC LIMIT 10"); while($d=mysql_fetch_object($c)){ echo "<tr><td><a href='profile.php?viewuser=$d->target'>$d->target</a></td><td>$d->rank</td><td>$d->date</td></tr>"; } ?> but you see the $d->rank is in another database called users How can i link the databases so the last 10 kills shows the users rank hi all, I am trying to link 2 mysql tables and display some information from each of them. I have a list of all the possible items for sale in table1 and I am trying to count the number of rows in the other table2 where the items exist. E.g. 'table1' manufacturer model man1 item1 man1 item2 man1 item3 'table2' id model 1 item3 2 item3 3 item2 And the result would show: item1(0) item2(1) item3(2) It would list all the items from table1 and show next to it how many rows are related to that item from table2. I have inserted a quote where I have tried many times to enter something similar to that show in the note below - but I can not get it to work - it just shows the total number of models in table1 for a given manufacturer. The php I have made so far is: <?php case 'manufacturer': $query = " SELECT * FROM table1"; $query .= " WHERE manufacturer = '".$data."' "; $query .= " ORDER BY model "; $result = mysqli_query($cxn,$query); $returnData[''] = "Select a Model..."; while($row = mysqli_fetch_assoc($result)){ // I THINK I NEED TO INSERT SOMETHING LIKE $query2 = "SELECT * FROM table2 WHERE model = table1.model"; $k=$row['model']; $k2=$row2['model']; $counter[$k]+=1; $returnData[$k]=$k; } foreach($counter as $k => $row) { $returnData[$k] .= " ($row)"; } break; ?> What's the best way for putting actual quotations into a database? I was using... $quote = htmlspecialchars(mysqli_real_escape_string($dbc, $_POST['quote'])); Should I be? |