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PHP - Php/sql If No Connection Die
Hi All,
I have a landing page that I use, but often my sql database is too busy or gets overwhelmed and then the landing page just stalls and traffic is lost. Here it is: Code: [Select] <?php //ini_set("display_errors",1); if(!$src) $src = $q; define("__EXEC_", 1); include("config.php"); include("custom.php"); function lsp_visit_find($__val, &$__uid) { global $u; global $db; $l_campaign = array("campaign_id"=>"", "url"=>"", "cost"=>"0.00", "name"=>"-", "ad_keyword"=>"", "mapped_keyword"=>""); $l_visit = array(); $q = $_GET['q']; $src = $_GET['src']; // for STAGE #1 (visit definition): get cost, ad keyword, mapped keyword. $l_campaign['name'] = "info"; $l_campaign['mapped_keyword'] = "$q"; $l_campaign['ad_keyword'] = "$src"; $l_campaign['cost'] = ".02"; // get referer (campaign URL). if no campaign found, - create it! if (!empty($l_campaign['name'])) { $r = mysql_query("select campaign_id,name from campaign where name='$l_campaign[name]'"); if (!mysql_affected_rows($db)) { $r = mysql_query("insert into campaign(name,cost, creation_date,last_update_date) values('$l_campaign[name]',$l_campaign[cost], unix_timestamp(),unix_timestamp())"); $l_campaign['campaign_id'] = mysql_insert_id($db); } else { $w = mysql_fetch_assoc($r); $l_campaign = array_merge($l_campaign,$w); } } // check, whether we had visits from this IP for this keywords within 2 minutes. // if we have one, get its ID, otherwise - create new! $visit_id=""; if (!empty($l_campaign['ad_keyword']) && !empty($l_campaign['mapped_keyword']) ) { $ip = get_real_ip(); $r = mysql_query("select visit_id,uid,campaign_id,ad_keyword,mapped_keyword from visit where ip='$ip' and ad_keyword='$l_campaign[ad_keyword]' and mapped_keyword='$l_campaign[mapped_keyword]' and currtime>=from_unixtime(".(time()-120).") limit 1"); if (!mysql_affected_rows()) { $__uid = md5($ip.time().$l_campaign['campaign_id']); $x = mysql_query("insert into visit(ip,uid,cost,currtime,campaign_id,ad_keyword,mapped_keyword) values('$ip','$__uid',$l_campaign[cost],now(),$l_campaign[campaign_id],'$l_campaign[ad_keyword]','$l_campaign[mapped_keyword]')"); $visit_id = mysql_insert_id($db); } else { $l_visit = mysql_fetch_assoc($r); $visit_id = $l_visit['visit_id']; $__uid = $l_visit['uid']; } return $visit_id; } } $db = mysql_connect(__CFG_HOSTNAME, __CFG_USERNAME, __CFG_PASSWORD); mysql_select_db(__CFG_DATABASE, $db); $u = isset($_GET['u'])? $_GET['u'] : 2; $uid = ""; $visit_id = lsp_visit_find($_REQUEST['l'], $uid); if (!empty($visit_id)) { setcookie("x_uid", base64_encode($visit_id."QQ".$uid), time() + 3600); } global $q; mysql_close($db); $q = $_GET['q']; $src = $_GET['src']; header("Location: http://www.mydomain.com/search/?q=$q"); exit(); ?> My question is how do I code it so that if after 5 seconds or so, or the connection can't be made, it just terminates the connection and auto loads the header redirect at the bottom of the page? Thanks! Similar TutorialsHi! I got the following problem... I have a SQL 2005 Server in a VPN. For security reasons,internet access to the database server is only possible for VPN members. Now i want to connect to the openvpn Server from my webserver in order to connect to the database for some webreports. How can i achieve this using php? thanks HI fellow programmers, Can i connect a textbox to a field in the MySql using the id of the text box? If yes, can u show me a small example. Thanks RAM Hi Guys, need a little help and drawn a blank. The code that is not working is below $result = $conn->query("SELECT * FROM MK_migration_details WHERE mig_bid='".$_SESSION['bid']."'"); I can confirm the $_SESSION['bid'] is working as echo's out on another part of the page. and the above $result works when i manually type the search criteria like below. $result = $conn->query("SELECT * FROM MK_migration_details WHERE mig_bid='300101'"); Basically no result turn up on the page. Any ideas or advise how I can diagnose? Fatal error: Call to undefined function mysql_connect() in C:\Program Files\Apache Software Foundation\Apache2.2\htdocs\connect\index.php on line 10 Hallo I am beginner and starting to learn php I got this message when I want to connect with server. Can I get some suggestion what to do? Thanks hi everyone I have a question... does creating a connection to mysql takes time depeding on the database size? Lets say that in my entire project I will be connection to 4 databases so I created a config.php which looks like this: Code: [Select] $hostname = "localhost"; $username = "root"; $pword = ""; $con1 = @mysql_connect($hostname,$username,$pword,true); @mysql_selectdb("databasename1",$con1); $con2 = @mysql_connect($hostname,$username,$pword,true); @mysql_selectdb("databasename2",$con2); $con3 = @mysql_connect($hostname,$username,$pword,true); @mysql_selectdb("databasename3",$con3); $con4 = @mysql_connect($hostname,$username,$pword,true); @mysql_selectdb("databasename4",$con4); so, this file is included in every pages, I put this on the top. Basically every page request it will open 4 connection and the script will only use 2 connection and another page will only 1 and so on..... this style is very convenient as for I am not creating a connection in every page.. But my concern is will it effect the performance of my system? Tnx in advance..... Hello, Does anyone know how may i detect the Connection type by user IP? Broadband etc. Is there a way to instantiate a PDO object using an already existing database connection? Or does PDO detect an already opened connection and use it? The existing connection is a persistant connection. It seems that a class can't inherit an object as attribute? I'm trying to make my UpperNavigation class access the $this -> db attribute which is a mysqli connection. Is this possible? If not, how do I manage my connection in other classes? Code: [Select] class Connection{ public $state = false; public $db; public $db_table_names; function __construct($name){ include('dbconfig.php'); $this -> db = new mysqli($dbconfig[$name]['server'], $dbconfig[$name]['username'], $dbconfig[$name]['password'], $dbconfig[$name]['database']); $this -> state = true; $this -> db_table_names = $db_table_names; $this -> db -> query("SET NAMES 'UTF8'"); } function close(){ if($this -> state == true){ $this -> state = false; $this -> db -> close(); unset($this -> db); } } } This is my attempt of accessing Connection::$db connection. Code: [Select] class UpperNavigation extends Connection{ public $all_parents_sorted; public function printUpperNavigation(){ echo '<a href=\''.$this -> current_page.'\'>'.$this -> title . '</a>'; } public function printSearchBar(){ echo '<input type=\'text\' value=\'Search by name...\' onfocus="if(this.value == \'Search by name...\'){this.value = \'\';}" onblur="if(this.value == \'\'){this.value = \'Search by name...\';}"/>'; } public function fetchAllParents($sp_id){ $latest_id = $sp_id; if(isset($this -> db)){ echo 'yes'; }else{ echo 'no'; } $query = 'SELECT default_name, type, sp_id FROM ' . $this -> db_table_names['sport'] . ' WHERE sp_id = "' . $sp_id . '"'; $result = $this -> db -> query($query); // THIS IS THE PROBLEM } } Hi, I'm trying to write my first MVC framework for my college project and faced this problem: i have main framework class, and have this loader class, that loads view files and libraries. Now, how can I do that when I load library, I could reach it from my main class? For example: in main class goes this code: Code: [Select] public $load; function __construct ( ) { $this->load = new Loader; } function someFunction ( ) { $this->load->library('someLibrary'); // and now reach the library like this $this->someLibrary->functionInLibrary(); } The idea is from codeigniter, so if anyone has used this framework will understand my question. I'm writing a quick little script to grab some information from Stickam.com, specifically using the "API" they have set up to get a user id from a provided username, and a username from a provided userid. These are both publically accessible pieces of information, so I'm not getting into anything I shouldn't, I'm just using the publically accessible API instead of scraping the HTML. For some reason I can't explain though, I can't seem to get the contents of the page using PHP. Here's my code: Code: [Select] $username = @$_GET['username']; if(!$username) { die("no username"); } $url = "http://www.stickam.com/servlet/ajax/getLiveUser?uname=".$username; $html = file_get_contents($url, false, $context); echo "<pre>"; echo $html; echo "</pre>"; But everytime I load this page on my server, I get this response: Warning: file_get_contents(http://www.stickam.com/servlet/ajax/getLiveUser?uname=[username]) [function.file-get-contents]: failed to open stream: Connection timed out in [file] on line 7 I can load it just fine on my Apache server running on my personal computer, and in my browser (both IE9 and Firefox), but not on my website. I've tried mimicking the headers that my browser sends and creating a stream context to send with the file_get_contents() call, but so far nothing seems to work. Any ideas? I'm looking to connect to a MySQL localhost on my mac. I've been working for a few hours at this and I still can't figure it out. Below is my code. I've tried a number of different ways to connect to the database including using new mysqli, mysql_connect and PEAR MDB2. Any suggestions as to what I can do? Thanks in advance. <?php $first=$_POST['first']; $last=$_POST['last']; if (!$first || !$last) { echo 'Error: Enter the required data.'; exit; } if (!get_magic_quotes_gpc()) { $first = addslashes($first); $last = addslashes($last); } $hostname = 'localhost:8889'; $username = 'root'; $password = 'root'; $dbname = 'phonebook'; @ $db = new mysqli($hostname,$username.$password,$dbname); if (mysqli_connect_errno()) { echo 'Errer: Could not connect to database'; exit; } echo '.....Connected Successfuly'; $query = "insert into contact values ('null','".$first."','".$last."')"; $result = $db->query($query); if ($result) { echo $db->affected_rows." contact inserted into the database"; echo 'Contact Entered: '.$first.' '.$last.''; } else { echo 'Error: Contact not added.'; exit; } $db->close(); ?> On some occasions I need to connect to a second and third database in the same script (maybe 5% of scripts have at least a second connection). Usually I would just select the new database. However, my host requires different users to be created for each database. What is the best way to do this? Close current connection (say db1) and open new (say db2) OR keep all open, creating 2nd and 3rd connections. I am happy with the design of my database, and don't want to merge all these tables into one db. Overall I am still happy with my host, so I'd rather not change. I've been trying to find a good, up-to-date source on how to secure the authentication credentials for my db connection. I've done some PHP coding and would like to learn more. There's plenty information available, but I often find books inevitably have typos in the code. Also most of the online tutorials are either at least several years old or deal more with user login security. User authentication is one thing, but what are the best ways to secure the connection to the database itself? Obviously your basic newbie method of unencrypted host, username, password, and database stored in a connectvar file is just open invitation--or maybe not since it doesn't present a challenge to a hacker. Some say to encrypt the credentials with something like MD5 and store them in .htaccess. Other sources say not to use MD5. Any advice on where to find some good resources on this? Cheers! I was not expecting this but when I managed to connect to a chatroom and close out firefox.... The user stayed in the chatroom. This user should of pinged out by now but it's staying online. How do I end this connection? So far I turned off my internet, and blocked all access to the site. Hi,
I'm trying to write a better PHP code to create and manage my website.
I would like to start a MVC approach with PHP, using OOP. So I can manage the updates in a better way. For example, to begin my project, I would try with the shipping cost of our products, using a Class without merge the PHP and HTML code.
Something like this:
$shippingcost=new ShippingCost(); $shippingcost->state="Italy"; $shippingcost->get(); // here I have an array with cost, discount, time ecc.And If I need it in JSON, I write:
$shippingcost->get("JSON"); // here I have the JSON with cost, discount, time ecc.
I wrote the Class in this way:
class ShippingCost
{
public $state;
private $arrayReturned;
public function __construct() {
$this->stato="Italy"; // the default state
}
public function __destruct() {
}
public function get($format="array") {
$this->arrayReturned=array(
"cost" => 3.99,
"costDiscounted" => 7.99,
"discount" => "50%"
);
if (strtolower($formato)=="json") {
$this->arrayReturned=json_encode($this->arrayReturned);
}
return $this->arrayReturned;
}
}
It works well, but I need to get the values from a MySQL db. How can pass the MySQL connection to the Class? I'm not able to do this.
Thanks in advance and have a great 2015.
Rob.
hey i need help im tryig to get information from my user and then process it in my database so i can use it to log them to a different web site im trying to use this method to get the information from the user but need help to get it please help me. Code: [Select] //make the database connection. $conn = mysql_connect("localhost", "Black Jack"); mysql_select_db("chaper7", $conn); //create a query $sql = "SELECT * FROM hero"; $result = mysql_query($sql, $conn); I have an app that connects to a source safe server to perform a command via shell_exec(). I had used exec(), but shell_exec seems to work better since I am on Linux. The command connects to the server and tells it to promote a file to the next level. On Windows this ran without a hitch, but on Linux I gat an error that reads: Quote Socket error when reading request from [172.20.22.1]: 3537808 ; Socket closed. I am told that the reason for this error is that PHP broke the connection to the server before the server completed the job and was able to shutdown properly. The only way I have found around this is to place a sleep(3) to the script. This is really not ideal since that means that there is at least 3 seconds between each command, which can really extend the time it takes to perform if there are numerous files. If PHP breaks the connection before the program can close it will leave the program open and PHP cannot perform any more commands to the server since it is stuck on the last command. If too many are given the machine will lock up due to resources being eaten up. I'm wanting to know if there is a way to tell PHP to not let go of a connection so quickly. I tried "nohup", but that does not help. I am new to Linux and am at a loss of what my options are beyond the sleep() method. I really feel that there has to be a better way or setting that can be manipulated to fix this issue altogether. Thanks in advance for any help. Cy Ok, the database I have been working on the past few days is located on my websites server (1&1) and today I am trying to get a connection to it on a website that is on a different server, but I am getting my echo statement of saying it can't find the database even though I changed it from "localhost" to the physical address of the database. Any ideas? Hi all! I'm trying to retreive my own status updates from LinkedIn, but without success uptill now. I did setup an oAuth communication which resulted in requesting the user for permission for the application to access his profile and I retrieved an access token succefully which I saved in the database. However, when I try the following after that, using the access token: Code: [Select] $options = array( 'consumerKey' => '[key here]', 'consumerSecret' => '[secret here]', ); // This is where I get the token, not really interesting :p $dbSocialAccount = new SocialAccount(); $oSocialAccount = $dbSocialAccount->fetchRow('id = "3"'); $token = unserialize($oSocialAccount->token); $client = $token->getHttpClient($options); $client->setUri('https://api.linkedin.com/v1/people/~'); $client->setMethod(Zend_Http_Client::GET); $response = $client->request(); $content = $response->getBody(); echo 'content:<br /><br />'; echo $content; exit(); It works fine! I get some profile information of the user/my own linkedin account. Now I want to retrieve the last, say 5, updates from my own account, so I change the request URL to: http://api.linkedin.com/v1/people/~/network/updates?scope=self Which should get me all my own updates... however now I get an error: 401 1303487627487 0 [unauthorized] I don't understand why I'm not authorized now? I do have access I guess, when the first example works? What am I doing wrong here? Thank you for your answer! If you need more information, please ask! <?php class UserQuery { public function Adduser($id,$username,$email,$password) { $conn = new Config(); $sql =("INSERT INTO test.user (id, username, email, password) VALUES ('$id', '$username', '$email',$password)"); $conn->exec($sql); } }
getting an "exec doesnt exist " error, saying exec doesnt exist in my db file. it doesnt need to exist does it ? anyone any idea why ?
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