PHP :: Deleting Duplicate Entries From MySQL Database Table

Don't Display Duplicate Database Entries?
I have a restaurants database that has a lot of restaurants listed with the same name in the same city with only the category changed. This is the code that I have that displays the list of restaurants. Can someone tell me what to add to it so that it will only display one of each restaurant of a certain name? PHP Code:

Deleting A Table From A MySQL Database
I've looked at the manual and a few other php resources, but yet I couldn't find a simple and easy way to delete a table using php. I noticed there is a destroy() function within the MySQL class, but I'm not sure how it's used.

Deleting Entries In A Database
I've got the reading and writing to a database working but want to delete entries ..... how would this be done?

Deleting Entries From Mysql
I have business listings that I have pulled from a database(MySQL) and printed to the page, in an admin page, for review. I'm trying to write a script to add and one to delete the listing.

I get an SQL error, 'check the manual for blah blah near " on line 1'

Here is the 'delete script:

Output Database Entries In A Table
I'm trying to display the entries in a table of two columns, one entry per table cell - in other words, two entries per row, number of rows based on number of entries in the database. But it still doesn't seem to work. It displays one entry per row... I don't know where the problem is. Here's my code:

Duplicate Entries
I am currently using the form below for people to enter data into mysql, at the moment this has no methed of checking to see if the data they enter already exists, can anyone provide help as to how to this? PHP Code:

Duplicate SQL Entries
I have a buddy system on my site and I have found that duplicate buddies can be added into the database. Here how I have this set up:

user 1 want to add user 2 as a buddy.
user 1 goes to user 2's page and clicks "add as buddy"
A PM goes to user 2 and asks him if he accepts or declines
if user 2 clicks accept a php script is run

Problem:
This script need to detect if that buddy already exists, if so do nothing or overwrite the original. Right now it just adds the entry again. I am using a very simple table:

UID BID
---------
1 | 2

This would mean user id 1 has a buddy with a buddy id 2

Here is the non-functional code:

$query = mysql_query("UPDATE buddies SET uid='$uid', bid='$bid' WHERE uid='$uid' && bid='$bid'");
print "Buddy Has been overwritten";
//would prefer it not do anything at all if entry exists
if ($query == 0)
{
// No records updated, so add it
$query = mysql_query("INSERT INTO buddies (uid, bid) VALUES ('$uid', '$bid')");
print "Buddy Added";}

Selecting Duplicate Entries
I'm having the following problem: Let's assume I have a table with 3 fields: ID (type int), NAME(type varchar), EMAIL (type varchar) in a mysql db. The fields have the following data stored:

1, jack, jack@jack.com
2, tom, jack@jack.com
3, jack, jack@jack.com
.
2000, jack, jack@jack.com

Now let's say I have like some thousand entries like that one above with each one containing different data. So if there are entries which have the same email adress, how I can I select exclusively those entries with the duplicate data in it? So the result of a selection should look something like this: (If I want to show the selection results in html): PHP Code:

Ignoring Duplicate Entries
I have this samll piece of code that gets the last 5 post from a forum and presents them on the home page. But i am not sure how to prevent duplicate entries from appearing on it. PHP Code:

Deleting From Mysql Table
i'm trying to replace a record in a mysql table but i'm having problems. First i've got a page to store existing film name values using:

<input type="hidden" name="Name" value= "<?printf($row["Name"])?>">

The second page is supposed to delete the existing record by comparing the stored name value with the database name but it only creates a a duplicate record. Here is the code for this: Code:

Deleting One Row From Mysql Table
I want to delete one row of a mysql table, and still to be in the same page, but the page needs to be reloaded and to give me new results Code:

Preventing Duplicate Form Entries
I have an HTML generated php form which when submitted enters the contents into an SQL database. The problem is that once the user enters their information and the page returns to tell them their submission was successful, if they hit reload/refresh a second submission is entered and this could go on forever unless I include some kind of code which prevents this. I have thought about using the refresh meta tag but really want to exercise my options before I do that.

Remove Duplicate Entries From TXT File ?
Is it possible to use PHP to open/read a TXT file (i.e. IP.TXT) that
contains ip addresses (1 per line), remove any duplicates found, and
re-write the file back out to IP_NEW.TXT ?

The reason is, I have ips coming from several sources, i.e. URLSCAN logs,
MySQL dbs, etc. and I can use a DISTINCT on the individual queries, but I
then combine all the results into 1 file which may contain duplicates.

Returning Field Results But No Duplicate Entries
I have a large MySql database full of addresses of clients.

I am trying to use php to retrieve and display a list of all the countries that my clients exist in. Which I can do:

--------
$sql = "SELECT * from Sheet1" ;
$qry=mysql_query($sql);
while ($result= mysql_fetch_array($qry))
{
echo "".$result[11]."<br>";
}
--------
However you can see the problem is this returns EVERY clients country so I end up with a list of duplicate countries.

I would like to display the list of countries but not repeat any countries in the list.

Deleting Entries In The Address Bar
I am sick and tired of looking at all that clutter that automatically pops up on my address bar, how do i get rid of all those enteries?

Deleting Blank Entries From Array?
The resulting arrays that i get from my select statements always seem to have some blank entries, in addition to the correct ones. It is rather odd, is there any way i can scan through it and delete these blank entries? Here is the print_r of the arrays. PHP Code:

What Is Indexing In Mysql And How It Will Be Useful And How We Can Retrieve Database Content Easily From A Database Table Containing About 5lakhs Datas
I need to select data from a database table containing huge amount of
data. Now I am storing data using one primary key and I am just using
simple select statement, and this process gives me the output but it is
taking long to execute the query. As much I had heared I want to use
some indexing or cluster indexing which might help me but I am not so
familiar with these things.

Duplicate Entries - From "There Must Be An Easy Solution!!??? (by Mcsimon)"
Duplicate entries are not too harmful in the sites I have made. Usually the output is sorted (order by ...) and duplicate entries become apparent.

However, I was thinking of warning users about 'duplicate' entries if they happen together. This would high-light the "BACK BUTTON - RE-ENTER" scenario.

- store the mysql last_insert_id() in the user's table.
- when an insert is processed, compare the new input fields to the last_insert_id row.

Other people may be working on "Life and Death" situations. Could their concern lead
to SELECTing using one or two "sort of unique" fields and, if any hits, SELECTing using all input fields? If a complete match occurs, they could do something.

Getting The Number Of Items In MySQL Database Table.
Is there an easier way to get the number of items in a database table than
selecting all the records in it and then running mysql_num_rows on the
result?

How To Delete A MySQL Database Table Without System()
I want to delete a MySQL table without using functions of the OS, so
that my php script can run on any webserver. Can I use a command like

$sql = "DELETE FROM tablename";

or are there better ways to do the job?

Display Items From A Mysql Database In A Table
I am trying to display items from a mysql database in a table but I need it to start a new table row each time multiples of 3 rows of the database table have been displayed like the following example:

item 1 item 2 item3
item 4 item 5 item 6

Does anybody know how I can make this work using php.

Putting An Array In A Mysql Database Table Field
I want to insert an array into my database but i've got a problem with it.

Before i insert the array into the dbase i check if everything is in the array with print_r($array). Everything that should be in the array is in there so i insert it into the dbase.

When i check my dbase with phpmyadmin the field that should contain my array has the word array in it so i assume the array is in the dbase. But when i retrieve the data from my dbase and check my array with print_r i get the following error: Warning: Argument to array_values() should be an array in.

Valid MySQL Database/table/column Name Regexp
regular expression in PHP which could be used to
check that a proposed (My)SQL database/table/column name is valid, i.e.
shouldn't result in an SQL error when created?

The user of my (hopefully to be opensourced) program has the ability to
create database/table/column names on the fly.

I'm aware of obvious characters such as ., [space], things like >, etc.,
which won't work, but haven't been able to source a definitive list,
including having googled the MySQL site.

Obviously certain characters need to be filtered out, as noted above, but
I want to be as unrestrictive as possible; hence just [a-z]* isn't good
enough because things like _ are acceptable.

Ideally, I'd prefer a regexp that applies to _all_ vendors' databases, not
just MySQL as I'm about to migrate the program to being
database-independent, probably using PEAR DB, but even a MySQL-specific
regexp would do the job.

In the longer term, I plan some sort of entity conversion script so that
theoretically any character could be used, using some sort of escaping
mechanism probably.

Automatic Delete From MySQL Database Table Expired Records?
I have a question . . .

how can i delete from MySQL database table automatic expired records ?
?

One think is to make a service that deleting the expired records . . .

Any other method ?

Deleting A Record From Another Table
I would like my code to delete the relevant confirm_code from the temp_users table but I'm getting the error

Your account has been activatedYou have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE confirm_code = '5f6feb0f5d104c2a6b7ce24d40711f74'' at line 1

My code:

Extracting Database Entries
I have a non-profit's web site that wishes to allow their members to
fill out information regarding summer camp information (name, contact
info, mailing info, physician's name, etc) online and submit it. I can
handle taking the info with PHP and putting it into a mySQL database easily.

But what has me stuck is that they want the ability to print out hard
copies of selected submissions (their choice) if they need to.

Would I have to display all the database entries in a form on a new page
with a select box next to each entry and have them pick that way, then
loop through and print out the selected ones or is there a better, more
direct (read: easier) way to accomplish this?

Does this sound like something for which there may be a pre-written PHP
script that can be altered?

Array From Database Entries
All I need is to create an array with the results from a database column.

(PDO) Database Entries Are Not Possible, Even Without Errorfeedback!
I am trying to insert with PDO-Sqlite rows through a form. I can do
whatever I want, I don't find the sollution where I made the error.
Perhaps somebody of you could help me?!

However, the database is created with sqlite, and the entries should be
done with PDO_SQLITE. However, no entries are done anyways and I am one
step going nuts, specially because I don't receive no warning or
errormessage on the screen.

Code:

<?php
require_once('HTML/Form.php');
require_once('I18N/UnicodeString.php');
require_once('HTML/Table.php');

class Formular
{
private $ServerVar = array("Auswahl","Betreff","Eingabe");

function __construct()
{

$this->ServerVar["Auswahl"] = $_GET['Auswahl'];
$this->ServerVar["Betreff"] = $_GET['Feld'];
$this->ServerVar["Eingabe"] = $_GET['Eingabe'];
$this->MeinFormular();

//$this->sqdb();
if(($this->ServerVar["Betreff"] === null) or
($this->ServerVar["Eingabe"] === null))
{
$this->MeineDB();
$this->TextFeld();
}
elseif (($this->ServerVar["Betreff"] === "") or
($this->ServerVar["Eingabe"] === ""))
{
$this->MeineDB();
$this->TextFeld();
}

else
{
$Auswahl = $this->ServerVar["Auswahl"];
$Betreff = $this->ServerVar["Betreff"];
$Eingabe = $this->ServerVar["Eingabe"];
$this->MeineDB2($Auswahl,$Betreff,$Eingabe);
$this->TextFeld();
}

Edit The Entries In The Database
I have a script that allows you to edit the entries in the database. All is working fine except when you pull up an entry for editing the subject field only prints out the first word of the subject??? I know the entire subject line is in the database, but only this part of the script won't print it out. All the other fields work fine. Code:

Limit Entries In Database?
Im using a guest book script that uses a Mysql database. Id like to limit the number of entries it will save in that database to say, 100. I emailed the fella who wrote the script and he replied with:

Just make a simple if the id is bigger than 100 or how many entries you want ... then just redirect to the index page. I dont know a whole lot about PHP although Im learning and this is what Im trying which isnt working.

if ($id > 100){
echo "<meta http-equiv=refresh content=1; url=http://www.mysite.com/blah>";
}

Preventing The Addition Of Duplicate Items To A Database
I'm trying to stop my file upload system adding the same files to my database. The script below is a much simplified version of what I'm using. It's getting frustrating as I can't get this to work.

I have a page previosu to this that posts up the details form a previous form. The form and everything works fine apart from the duplicate check. Code:

Preventing Multiple Database Entries.
I am trying to make my form processor detect if an item name submitted to the database already exists I would like to display a message saying the item is already in the db.

I tried something like this

if ($Item_Name == "$row["Item_Name"]") {

print "That item is already in the database";

}

Now I know this is wrong but if someone could point me in the right direction it....

Fastest Way To Print All Database Entries?
Say I have a database with 1000 entries. What's the fastest, dirtiest way to do that.. Like this? PHP Code:

How Do I Display All Database Entries Between Two Dates
I have two dates in a form " startdate" and enddate"

when i display the results i would like to show all results between, and including the two dates. how do i do this... this is my current query:

My Variables:

$userid = $_GET['idr'];
$fromdate = $_GET['fromdate'];
$todate = $_GET['todate'];

The query:

$result = mysql_query("SELECT date, status, time, notes FROM timeclock WHERE userid='".$userid."' ORDER BY time");

Using Checkboxes To Update Multiple Database Entries
I have a query that shows a list of options that a user can toggle on
or off using a checkbox.

query...
form...
while($row = mysql_fetch_array($result))...
<input name="menu_show_attribute[]" type="checkbox"
class="checkbox"');
if ($row['menu_show_attribute'] == 1) {
echo (' value="'.$row[menu_id].'" checked />
} else {
echo (' value="'.$row[menu_id].'" />');
}

The list is generated from boolean values in a DB. This populates my
form with checkboxes, some are checked and others are not. I'm using
an if statement to sort it (checked). This works fine.

The problem is when the user un-checks a checkbox, the value does not
get passed and the DB does not update - set/change it to 0. The only
values that get passed are the checkboxes that are checked. Below is
the query / code after the submit button has been pressed. Are radio
buttons the answer? Any help / suggestions would be very much
appreciated.

//process form
for ($i = 0; $i < count($menu_show_attribute); $i++) {

if (isset($menu_id) == 'checked') {
$menu_show_attribute = 1;
} elseif ($menu_show_attribute != 'checked') {
$menu_show_attribute = 0;
}

$query = 'UPDATE menu SET menu_show_attribute = "'.
$menu_show_attribute.'" WHERE menu_id = "'.
$menu_show_attribute[$i].'"'
echo("<br>");
echo $query;
$result = mysql_query($query, $db) or die(mysql_error());
}

Deleting A Row From A Database
I can't fiqure out why my delete function isn't working. I have a listing of rows in my database with an option to delete an individual row at the end: Code:

Deleting From Sql Database
I have used this script I made to delete files from a server and simultaneously remove information about the file from a database. I have uploaded the same script to a new website and it no longer works. The file does get deleted but the database line doesn't get removed. I can tell where it's going wrong by the error custom error message 'echo'ed on the page ("your file was only partially uploaded"), but I really don't know why.

PHPMyAdmin ... Deleting A Database?
I just want to delete a test database that I made, thats it. There is no upfront obvious way of doing this from my pov so thats why I'm asking.

Deleting Records From Database
I have another question about record deletion from
database.

For example, my database has 10 records with ids 1
through 10. If I delete id #10 then everything is good
and all the records are still 1 through 9. However, if
I delete record id #4, then in my db I would have
records 1 through 10 with id #4 missing.

Is there a command that syncs the database? How do I
go about this to keep all the ids in the right order
after the deletion? or What do I need to do to prevent
that from happenning?

Deleting Comments From Database
i have a message board that enters information to the data base fine, but where i try to create a detele for individual comments, it does not seem to work, any ideas on how to write a delete for this so that it deletes individual messages Code:

Deleting Images Associated In Database
I've got a database structure with rows containing filenames of photos on the server each with its own uploader/user and unique id number.

Can someone help me on how to delete an array of photos from the server uploaded by a specified uploader/user?

Deleting Not Working - Flat File Database
I have to decrypt the $email variable in order to delete from a flat file database. I am not sure how to do this... It decrypts it and trims it to display on a select field, but I don't know how to make it delete. Code:

Checking If A Value Is Not In An Array And Deleting Record From Database
I have been trying to figure this one out and have come up against a brick wall although I know it should be relatively simple. I have a form that passes an array to a php script from a multiple select box that is created dynamically. If a user deselects an item then I want to delete the record from the database but am having a big problem with it. The table in the dbase is quite simple with just three fields:

id
classid
formid

Basically, the form send through a classid and a formid value and I want to delete any records that have a classid that are not in the form array and have a formid which is passed as a hidden value. I suppose really what I want is to know how to see if a classid is not in the array that is passed.

Deleting Database Rows From An Array Of Variables
I have a form with a list of checkboxes, which are each filled with a date in the format 27012007, for example. The name of each of the checkboxes is the same as the date.

Basically when the user presses the submit button I would like all rows in the database table "users" with the corresponding column "date" to be deleted when the form variables date correspond to those in the "date" rows. I think all the checked dates might also need to be put into an array. Would anyone know how to do this?

Sort Results By Date/time, Limit 5 Database Entries Of Today &/or Upcoming Days
I'm designing a website for my fraternity and in the database I have entries which contain past events, todays events, and upcoming events. My problem is that I can not figure out how to sort the query results to display:

1) only past events based on the CURRENT DATE
2) only the events which fall on the CURRENT DATE or after, limiting the results to 5 entries
3) all events that fall on CURRENT DATE or afterwards

Example:
Today is September 15, 2007

Problem 1) Displaying all events that happened before September 15, 2007
Problem 2) Displaying only 5 results that fall on September 15, 2007 or after
Problem 3) Displaying all events that are happening on or after September 15, 2007

And obviously I would like the CURRENT DATE to change depending on what date it is, currently.

Ok so now I've been very redundant in my explanation of my problem here is the code and a link to what that particular page looks like. Code:

Check Duplicate Record In Mysql
I am trying to make sure that I do not insert a duplicate record in the database. Here is my code:

Get All Entries From Today (mysql)
I currently have a page that each time a user visits it, the pageid and timestamp is thrown into a mysql daabase.

so the database looks like so:
linkid time
3 2007-08-22 17:26:21
3 2007-08-20 17:26:21
3 2007-08-22 18:36:59
2 2007-08-22 18:37:21

What i need is for php to show the total amount of visits today as per a certain time zone (or if thats not possible, the past 24 hours)

soo..
Search for all occurrences where linkid = 3 today for a specific timezone (or 24 hours)

MORE SPECIFICALLY
User 1: Lives in New York (EST -5)
registers for my site and sends visitors to his linkid (3)

After two days, this is what the mysql table looks like:
linkid time
3 -=- 2007-08-22 17:26:21
3 -=- 2007-08-20 17:26:21
3 -=- 2007-08-22 18:36:59

But mysql time isn't Eastern time, its another timezone. So when a visitor comes to user1's page at 3pm EST, mysql registers the time as 2007-08-22 17:26:21

So... I want to first add/subtract the number of numbers in the mysql database depending upon the user, and then see the amount of visitors for the day.

MYSQL Entries Won't Update
I am trying to update some entries in a mysql database that will append the filename to the end of a thumbnail directory entry. So for example /images/thumb/ would become /images/thumb/12345.jpg.

I am stumped because the below code gives no php or mysql errors but the entries are not updated in the mysql db! Code:

Multi Entries Update To Mysql
Could someone help me to figure out how to upgrade multi entries to Mysql by using PHP?

Say, I have a table on Mysql

id Priority
1 Okay
2 wait
3 later
4 asap
5 hold

Now I want to upgrade that table to:

id priority
1 hold
2 asap
3 okay
4 wait
5 later

Is it possible to upgrade multi entries with one submitt button? If yes, could you tell me how it could be done.

I knew I could do it by each entry (submitt button).

Update priority set priority='$priority' where id = '$id'