Check If Database Exists Even If Connection Credentials Are Incorrect..
How can I check if database exists even if the connection credentials are incorrect?
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How To Check If A Database Exists?
I'm writing a class to create Databases, and I'll also make one to create Tables. But how do I check if a database already exists? just by checking if you can select it like so: // Select the MySQL database $this -> db_select = mysql_select_db ($this -> database); // Test the database selection if (!$this -> db_select) { return false; } (don't mind the "$this" it's coded in OOP but I didn't think I would need to put it in the OOP forum for this simple example) So is this the right way to check it or is there another way?
Check To See If A Variable Exists In An SQL Database
I am working on a project. I want to safegaurd against a user entering a number into the database multiple times. So what i want to do is run a query and check the users entry against the database, and then return an error if it exists. Here is how i thought it would work The script would take the Text Field posted and asign it a variable $var = $POST_['textfld']; Then i thought it might work if i were to say $var2 = mysql_query("SELECT item FROM table WHERE var = '$var'"); Then i could have a statement similar to if { $var = $var2 echo "Number already entered into Database"; } else echo "Thank You"; I thought that would be a good way to make it work, but its not working so far, any suggestions?
Check To See If Row Exists
i need to know how to check to see if an id exists in a table. if the id does not exist then display "some text" else continue with script. my table is called "orders" and i just want to check if the row "id" exists
Check If Value Exists
I have a form with stuff like name, id etc when it's posted i want to check if a name already exists with php. If it doesn't already exist then it's ok and it's saved. if it exists then i want to ask for confirmation from the user like "do you still want to send this information". It would be nice if i can have this confirmation with a javascript box. how would i do this, i mean how do i pass data from the form page then to the check page then to the javasript box and then to the code that saves it?
How To Check If File Exists
Have a look in a folder, check if there is a file and if there is display one thing, if not display something else. example: $result=mysql_query("select * from my_table"); while($row=mysql_fetch_object($result)) { if(fodler/$row->name.txt exists) { display this} else { display thus } }
Check To See If Image Exists
I've tried three different methods of checking whether an image on a server (sometimes my own, sometimes somebody else's) exists, and I'm not getting consistent results. Method 1: if (@fclose(@fopen("$burl", "r"))) Method 2: if (file_exists($$burl)) Method 3: if ($img = @GetImageSize("$burl")) where $burl is an absolute URL to an image. Methods 1 and 3 seem to return the same result, but Method 2 (as per the PHP Manual) always seems to return a "not found". However, the strange thing is that all three methods sometimes return a "not found", even when the image does exist. For example, here's such a banner: http://www.is1.example.com/cgd.aspx?BID=18457&AfID=100845&AdID=2941 Is this because this banner is actually returned by some code on the the hosting server, and if so, is there any way around this (other than trying to copy the banner to my own server - although in this particular case, I can't do that either)? (The reason I need it is that I have about 280 banners in rotation across several of my websites, and I have written a program that will check them all, switching them off or on as required, and emailing the results to me. If I can't find a consistent and accurate method of finding whether the image is currently working or not, I may have to go back to checking them all manually.)
How To Check If Something Exists In Mysql Db
Is it possible to grab the data from the database, the var is $weburl, and $weburl will be a website, e.g. http://www.site.com I need mysql to be checked to see if $weburl already exists in the mysql database, i have included the database structure. But it has to check in such a format, it has to check if *site.com* exists in the database, not www.site.com or http://www.site.com Code:
Check If Line In Txt Exists
Ok so i have a hit counter on my site, but the problem is people going and reloading the page over and over, so i need to make it so it grabs their ip and sends that to a seperate text file. Thats easy but i cannot find anything on searching lines of a text file for a certain string.
Check A File Exists In Another Directory
I am writing a script that will insert a link to the page, but before it does that, it must check to see if the page exists. I can use the file_exists($page_file) function, but it seems to only work if the file is in the same directory where the script executes. My script is supposed to find the script in another directory, but it does not find them and returns false. Does anyone know how to solve this problem?
How To Check If A Session Exists In PHP4?
$id = session_id(); if ($id == '') {... no session ...} If the $id is empty, then there is no session. But the problem is when I use the "session_id()" function from a different page than the page that contains the "session_start()" function, the returned $id is always empty. Do have I to pass the SID in the url or something? Is there a setup file that I should update?
Check If Column In Mysql Exists With Php
I wanted to know if you can let php check if a column exists in a table. cuz i have a 1 script script and i want it to check a table for having the following columns and if 1 o fthem is missing it would automaticly add the column.
Can I Check If Remote Mms-stream Exists?
I want to check if a remote mms:// stream exists. Just if it exists: not even use it. i cant get it to work so far with php socket/fopen/exists...... this one exists: mms://streams3.omroep.nl/tv/vara/najiblooptwarm/bb.20060603.asf this one doesnt: mms://streams3.omroep.nl/tv/vara/najiblooptwarm/bb.20060602.asf Why doesnt it work?
How To Check If A Session Exists In PHP4?
To check if it exists, I do: $id = session_id(); if ($id == '') {... no session ...} If the $id is empty, then there is no session. But the problem is when I use the "session_id()" function from a different page than the page that contains the "session_start()" function, the returned $id is always empty. Do have I to pass the SID in the url or something? Is there a setup file that I should update?
Function To Check If A File Exists Or Not?
Does anyone know if there is a function to check whether a file exists or not? Something like readfile(), but which DOESNT actually output the file. I'm trying to write an upload script, so something like this: if (@readfile("$filename")) { echo "This file exists already"; } else { echo "This file does not exist"; } Anyone know?
Check If The Page Exists On A Server
i have a set of links and that will be scrolled monthly, and i want to check if any of the links are broken and want to mail the broken links to the admin. now how do i check if the links are broken ?
Checking If Row Exists In MySql Database.
I have a form that sends data into a database with account name, password, etc. but If someone goes to create an account with the same name, it overrides the other entry. How do I get my php script to check if the account name already exists before it does the INSERT.
Checking The Database To See If Submission Already Exists...
I have set up a form. Once the form is submitted the information is sent to this page (see code) below. I am trying to use an if statement to check if the VIN already exists in the database before it is INSERTed into MySQL. If the vin does exist the user gets an error saying so. If it doesn't exist the ELSE statement INSERTs the information into the database and the user gets a thank you message. Code:
Can You Check If A Session "exists"?
I'm going to start this post with the words so many before it have started. "I'm just beginning to play with sessions..." I'm just experimenting for now, but within the month, I'm planning on writing a basic e-commerce site using PHP/MySQL. I want to store items in a Session, then write to the DB at the end of the transaction. Not sure I'm going about this the right way, but... I was thinking about having a script that gets run on every page, checking if the session has been started. A session would be started when someone clicks on "Add to basket" for the first time. If the session has been started, then I'll display "Click here to check out your basket" if not, then display something like "Basket empty" or something. So, is there a way to check if a session exists without actually starting one? Is there simply a variable to check for? I had been checking for $PHPSESSID, which seemed to be working okay, but if I started a session, $PHPSESSID wouldn't be true in that same script - didn't "exist" until I reloaded the script - but then again, I don't know what the hell I'm doing.
Database Connection ?
I am very new to PHP...Can i get the starting code for connecting to database....how to open the connection...what is the connectionstring ?
Database Connection
<?php I have a question about 2 connection strings to a ms sql database. # TEST DATABASE $connecttest = MSSQL_CONNECT("TEST", "sa", "123456") or exit("Unable to connect to MS SQL Server at 10.0.10.58"); $select = mssql_select_db ("database1",$connecttest) or exit("Unable to select database TEST"); # PRODUCTION DATABASE $connectprod = MSSQL_CONNECT("PROD", "sa", "654321") or exit("Unable to connect to database at 10.0.10.59"); $select = mssql_select_db ("database2",$connectprod) or exit("Unable to select database PROD"); $SQL = "SELECT * FROM table1"; $RESULT = mssql_query($SQL); // What data will i find here? Is it data from the TEST or from PROD and will it be data from database1 or from database 2? ?>
Connection To Database
Running RH8 and have installed mysql, apache, php. I have pypmyadmin working fine, adding and editing databases.. but when I try to get a form (to enter data) its does not connect or just sumbits as if all was ok but nothing happend.
Database Connection Limits?
I am in big confusion right now plz tell me one thing with explaination. Situation is: I have a script in that i am using database connection and some database operation. 10 users are accessing this script same time. what happen is there 10 connection to database sever or there will be only one connection?? if there would be 10 connections then what is the max limit of mysql.
Class For Database Connection
Can anyone tell How to write class for database connection in PHP . Class must provide a general function for executing queries.
Closing A Database Connection
for my php site, i open a mysql connection for each page cause most of my pages uses some data from the database. however, i did not close the mysql connection - will this have any bad effect to my database? or is it better to have all connection closed once my php script is finished?
Database Connection Problems?
I am all new to php/mysql and was wondering if someone might help me out on a little problem that I am having. It must be something very simple that I am missing, it seems that I am having trouble connecting to the database, yet all of my information seems to be correct - the error is as follows: Parse error: parse error in /data/members/free/tripod/uk/t/h/e/theresearcher/htdocs/scripts/conf.inc.php on line 6 the error repeats twice. Line 6 in my conf.inc.php states: $mysql_database='theresearcher_uk_db' I have enabled both php and mysql twice just to be sure. Hostname localhost is correct. Double checked the database name. No password is required so i left it blank. (should I take the line out alltogether?) I dont know what to do about the port..lycos didnt say anything about it so I left it blank. The table prefix I am not sure of either. Here is the surrounding code: $mysql_hostname='localhost' $mysql_port='' $mysql_user='theresearcher' $mysql_password='' $mysql_database='theresearcher_uk_db' $mysql_table_prefix='' $mysql_pconnect="NO"; $pages_dir='/data/members/free/tripod/uk/t/h/e/theresearcher/htdocs/' $pages_url='http://members.lycos.co.uk/theresearcher/pages/' $scripts_dir='/data/members/free/tripod/uk/t/h/e/theresearcher/htdocs/; $scripts_url='http://members.lycos.co.uk/theresearcher/scripts/'
Connection To Database Or Die Message
When connection to the database fails I would like to include an email link in the response message, but I need help with how it can be done. Below is my code and I want the error message text to include a Report This email html link. Code:
Php Mysql Database Connection
i want to add my form details to the mysql database. i had done it with mysql_connect('localhost','root',''); but the error was localhost connection failed. Code:
PHP MySQL Database Connection
I'm involved in a project where I have to create a web application with PHP and MySQL. My question is, usually we use one user name and password to connect to the database for the whole application, in which case all the users will connect to the database with that username we set in PHP script. If we want to have different users with various access rights on the database this strategy will not work, because we give one username and give maximum access rights for that username. Is there any way where you can define the access rights of a user in the database(MySQL) and use the same username and password when the user connects to database through PHP application? If so, we will have hundreds of users connecting through the PHP application with different usernames and password, will this have any impact on the web server or DB server? Is it secure? Is there any other way this can be done?
Intranet - Authenticate Using Windows Credentials?
I've just about finished an intranet app that allows users to sign in and out, track their time, show a calendar view of time worked, vacation days used, calculates overtime, etc. My backend is mysql and I'm currently authenticating against a users table that I threw together. The problem with that is another set of u/p's for users. I can import a list of everyone's windows login info, but then it's in two places and I have potential sync issues and maintenance that I'd like to avoid. My question is this: are there any environment variables that capture the windows login info in PHP (the server will be running on windows, not *nix)? For example, if I login into my workstation as djf / password1, rather than having that information also stored in a mysql table, is there any way to access those values without the user typing them in again? I'm not that familiar with windows environments, but based on the research I've done, using LDAP and Active Directory might be a possibility? I have no idea how to do either.
What's User Credentials Are Sent In Clear Text
the Acunetix Web Vulnerability Scanner said my php scripts has the problems of "User credentials are sent in clear text", but my scripts never output any information about User credentials, does anyone know how to fix those problems ?
PHP/MySQL Database Connection Problem
when I'm doing an insert (using mysql database) it produces the following two error messages : Warning: MySQL: Unable to save result set in [file]. Lost connection to MySQL server during query These errors occur after the number of conncections increases, before this there is'nt any problem. I am using PHP 4 with Apache on Redhat Linux 6.2.
What Is Going Wrong In The Database Connection With PHP MYSql
I am setting up a site for a client that requires signup and login. I have written most fo the code but, for some reason am have trouble with the database connection. The problem is with the connection. I believe I have the right server but, have had trouble getting the correct iser and password. Is there a way to determine what is going wrong in the connection because setting up die with a message doesn't tell me anything other than the connection failed. I going back to client and getting the support # from yahoo who set up the server and database. Hopefully I can talk to the person who set up the server for him and get the proper server, user and password. It would be nice to know how to troubleshoot the connection in a more meaningful way.
No Luck Making A Database Connection
I've included db.php into my script, and this is all it contains: $host = 'localhost' $username = '***' $password = '***' $database = '***' $connection = mysql_pconnect($host, $username, $password); $mysql_select_db($database, $connection); obviously with the other fields filled out. My webhost tells me to use this script: $dbh=mysql_connect ("localhost", "<USERNAME HERE>", "<PASSWORD HERE>") or die ('I cannot connect to the database because: ' . mysql_error()); mysql_select_db ("<TABLE NAME>"); neither one of these methods work, actually - I get this error: [the contents of my db.php file here, in plain text!]No Database Selected
Database Class: Closing Connection
I am just learning OOP in PHP and I decided making a DB class would be a good start for my first real type of OOP class. Everything is working fine but I am having problem's closing the connection. I was wondering if anyone can see what the problem might be if it is in the coding. database.class.php PHP Code:
Hiding Database Connection Info
In a php script, I have to connect to a remote mysql database. I'm a bit worried that some user might be bale to retrieve the source of the page and see the user name and password to connect to the db. Is this resonable? What's the best way to avoid it?
ADODB Multiple Database Connection
I'm using ADODB for a PHP project and am having problems with multiple (MySQL) databases. I've looked through all the docs and am stumped. I know how to use PHP and MySQL and I still haven't got a clue why this isn't working. Code:
Passing Credentials In A Form And Perform Action
All, I want to create a script that performs the following: 1. Access a page and submits authentication credentials (www.example.com/login.html) 2. Once authenticated, grab values of a form (www.example.com/logs.html) I just need to be stepped through the thought process. Unfortunately, I can't use cURL because the main page doesn't request for authentication. Instead, it's an authentication form/page. Or perhaps I can still use cURL, but not use its auth mechanism of CURLOPT_USERPWD. Here's the form parameters that must be submitted: <label>Username:</label> <input type="text" size="14" name="username" value="User" /> <label>Password:</label> <input type="password" size="14" name="password" value="" /> <input type="submit" value="Login" />
Using Global Variables In The Database Connection String
I'm sure this has been asked a million times but I can't seem to formulate a google search that returns what i'm looking for. I've go a dev and live environment. Currently the DB connect string is hard coded into each php file which means i'm going to have to change every page - Arrgh!! If i put the DBonnect into a function and store it in an include file, it doesn't seem to work, Also the connetion works with inline PHP statements, but I have to repeat it in every function even if they are in the main php file??? which doesn't seem right to me.. I need to either :- Store the connection variables in an include file and retrieve them as global values OR Store the connection string in a function in an include file which can be accessed by all functions. also do I really have to call the dbconnect inside every function. Please note, if it makes any difference, I still havn't got my head round OO programming in PHP so it is still pretty much procedural. I am using PEAR but dont really understand (or care at the moment) about what it is doing.
Errors - Putty.exe (telent Connection To Mysql Database)
The following code produces an error when I try to run it under putty.exe (telent connection to mysql database). Can anyone identify the error in the code? The server is running PHP5. DELIMITER ;; /*!50003 DROP PROCEDURE IF EXISTS `aaa` */;; /*!50003 SET SESSION SQL_MODE="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER"*/;; /*!50003 CREATE PROCEDURE `aaa`() begin declare iTest int; set iTest = 5; end */;;
Database Connection Problem In Included File On Root Directory
I have a file called tophtml.php that connects to the database. It's in the root directory of the site. It works perfect in the root directory. But if I call it in a sub directory. (e.g. require("../tophtml.php") or require("C:websitesdogrealm ophtml.php")) I get errors saying it can't connect to the database.
Incorrect Id Value Being Displayed
Can anyone tell me why the $list_id variable is passing the last value in the DB and not the list_id associated with that row? When $featured == 'true' the list_id displays correctly but when i try to submit it it displays the last $last_id in the DB. PHP Code:
Incorrect Result
i try to insert a text in a database (mysql) in this text, there are php code i want to display... i use <code>...</code> to do this job str = $_POST['texttutoriel']; $str = preg_replace_callback('`<(code|url|img)>(.+?)</1>`si', 'bbcode', htmlentities($str)); $str = mysql_real_escape_string($str) my bbcode function: function bbcode($m) { switch($m[1]) { case 'code' : return '<div class="code"><pre>'.$m[2].'</pre></div>' break; //... } }
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