WordPress stores user generated content, along with other configurable information, in a a database (typically MySQL).

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11 views

Create Pages for database content

i added a custom table to the wordpress database with a list of names and a description. I wrote a custom function to display all the names in a table. Now i want to have an extra page for every name ...
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2answers
113 views

Insert Query not working in the form

Many people has asked the same question, I have read those things and mine is different, I am trying to insert some values inside the database from the form but it's not getting inserted I have a ...
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2answers
76 views

Creating table with plugin is not working

After reading many question and answers and many had asked the same question I have been following the same instruction as the people instructed but my bad it's not working I have used ...
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17 views

Unable to create custom table , register_activation_hook from class

Cannot create the table , what am i missing class em_db { public function em_events_custom_table() { global $wpdb; $table_name = $wpdb->prefix . "em_events_db"; ...
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52 views

Get id from database

I need this ID to delete users from table. My plugin crate new table in DB when he is activate. All this code is in main.php, and in second.php i have only form that display my results.. and i include ...
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1answer
127 views

What's faster? One big query, or several smaller ones?

I'm working on an app that will require a query, via Ajax, for a bunch of posts in random order. Something like this: $query = new WP_Query( array( 'posts_per_page' => 50, 'orderby' => 'rand' ...
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1answer
38 views

Is there a maximum amount of pages for a multi-page post?

I will publish 2 books (encyclopedia) on my site, each with over 4000 pages. My plan is to put each book into a multipage post using the <!--nextpage--> tag. 1. Can Wordpress handle such a ...
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14 views

Comments disappeared but showing in database

This morning I published an article under which several comments were placed. I could read them and everything worked fine. Then all of the sudden, the number of comments were still showing on the ...
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1answer
26 views

Local host to server import problem

I made my site at local host using WordPress 3.6. I have a backup of the database, but when I try to import it to the live site using WordPress 4.1, I receive the following error: Sorry, there ...
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10 views

No Database Backup

I'm looking for a way to recover as much as I can from a poorly backed up Wordpress website. The website owner didn't renew their hosting and lost the site. This was the first and last Wordpress ...
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2answers
37 views

Custom Wordpress Table wpdb

running into issues querying a custom table and getting results. As of Wordpress 3.9, I can no longer run mysql_query(), and have to use $wpdb->query(); So keeping that in mind: Old Code: <?php ...
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23 views

Delete entry from DB

i created plugin and now i want to add delete button, that user can delete one entry from DB table.. Here is my code i form.. function showresult(){ ?> <form method="post" ...
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14 views

Force reindexing of plugins in Multisite

I have a Wordpress multisite installation and am developing it on localhost. However if I install a plugin in development, deploy the files and check multisite plugins section in Wordpress admin, it's ...
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1answer
24 views

Wordpress dbdelta a semicolon

I have a query, something like this $drzava ="CREATE TABLE IF NOT EXISTS`wp_drzava` ( `ID` int(11) NOT NULL AUTO_INCREMENT, `Kod` varchar(2) NOT NULL, `Naziv` varchar(100) NOT NULL, ...
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1answer
52 views

Insert double entry in DB

I created plugin and my plugin create new Table in DB. My problem is when user type something in field firstname, lastname... and click on button Submit, that go to my table and that is ok.. but then ...
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1answer
43 views

How do I properly update the Wordpress database password?

A site that I manage was recently compromised and I am going through the steps to harden and re-secure the site. I would like to change the MySql database password and want to make sure I do not take ...
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33 views

How to clean tables after plugins are uninstalled

A number of plugins which I use earlier are not uninstalled and there tables are still there. I don't know the table names created by those plugins. Is there a way to automatically delete (via a ...
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44 views

Insert data to DB

I create plugin and that plugin, when is activate, create new table in DB.. Now i need to insert some data like (firstname, lastname..) in that table.. Here is my form : <form name="cool_form" ...
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2answers
71 views

Delete tables from database when deleting plugin

I created a plugin and want to add a function to delete my tables from the database when a user deletes my plugin. I created a function that deletes tables from the DB when a user deactivates my ...
2
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1answer
193 views

What are these entries in the database? Looks similar to JSON

So I have been wondering for a while now what these entries are and what they do, also what the format of them are. They look similar to JSON but are definitely not JSON. ...
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54 views

$wpdb error : call to a member function insert() on a non-object

I'd like to add data to my custom wordpress table of my plugin, here is my code: <?php global $wpdb; $data = $_POST['name']; $wpdb->insert('ct_data' , array( 'name' => $data ), array( "%s" ...
0
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1answer
90 views

Select data from database and list it in Loop (Wordpress)

your Answear helped me but i stuck again. here is what i have done now : <?PHP define( 'WP_USE_THEMES', false ); get_header(); global $wpdb; $sql = "SELECT vehicle_id, manufacturer, series, ...
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37 views

Get results from wordpress data custom table

Firstly i created a custom table into the wpdb : global $wpdb; $table_name = $wpdb->prefix . 'countdown_table'; $sql = ' `id` int(11) NOT NULL AUTO_INCREMENT, `styleName` varchar(255) ...
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1answer
20 views

I moved my site to another server, wp admin works so does the front page, but posts don't work

Pretty much summed up everything in the title. I can see the posts in wp admin, but when I hit the "View" link they return a 404 not found. Do you have any idea why this is happening? As a note: I ...
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1answer
24 views

Options table - where does my values go?

I just got my hand into wordpress and wp theme development. I know to create basic wordpress themes from scratch but I wondered how to get into custom theme options. My custom theme options (custom ...
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2answers
54 views

Multiple instance of data in plugin custom database table on plugin activation

I'm creating a plugin that adds some data to a custom table created by my plugin on plugin activations. I also created a settings page with a form that users can insert their own data to the ...
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1answer
23 views

Is it risky if I update all url in the database due to my site url changed?

Let's say I have a wordpress site on a subdomain. Initially, I created the site with "www." >>> www.mysite.mainsite.com Now, I'd like to change site url to only mysite.mainsite.com without www ...
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19 views

Use existing client information database in wordpress site

Our company's website is being completely redone, this time with wordpress. We have an existing client database where clients can log in and get the information they have permission to view. This ...
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1answer
35 views

What's the database relationship between a post and its attachments

I'm creating a custom import script to migrate CSV data into wordpress. Each post has a series of attachments that must come with it. Following chapter 14 (importing via a custom mysql script) in the ...
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1answer
58 views

importing data into wordpress db

Hi I am currently using wordpress 4.0 multisite(bitnami multisite stack) and am using WPMU directory plugin to create business reviews directory. Have some custom fields created using custompress ...
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1answer
38 views

How to fetch results from database

I'm attempting to customize a wordpress theme. I've added custom field cp_job with form submission. This indicates if the ad is either Buyer(Buying services) or Seller(selling services), which is now ...
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21 views

Any way to calculate distance between 2 addresses based on custom fields?

I'm working on a directory database theme, and I wonder if there is any way to calculate distance between 2 addresses or lat/long.... It can be a straight line calculation, and direction (bearing) ...
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1answer
29 views

How to have WP Search widget index dynamically generated content?

I'm working on an adoption site and the company has a database that contains all their adoptive families. I have a page that contains a small line of shortcode which pulls every family within the ...
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29 views

Unable to replace text string across site

There is a text string (a little over 1000 characters with spaces) that needs to be replaced across the entire of my website. The text recurs over 300 times on my site, is identical, and was been ...
0
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1answer
38 views

$wpdb variable throw this error Call to a member function get_results() on a non-object in

I've this error "Call to a member function get_results() on a non-object in" from this code: require_once($_SERVER['DOCUMENT_ROOT'] . $folder . '/wp-config.php'); ...
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0answers
24 views

Preventing concurrent update of data

I have to implement the update of some metadata. An algorithm try alter some global variables in order to minimize a global error function. This algorithm is triggered by users who ratings each other. ...
0
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1answer
54 views

List of ways to access WordPress database?

I'm trying to get a complete understanding of how WordPress works with databases. I've read the documentation but I'm getting confused by all the different approaches available. So far my ...
2
votes
2answers
48 views

WordPress unresponsive after calling wp_update_comment()

In the admin panel's "Edit Comment" page, for some reason after I click "Update" the Edit page goes into infinite loop/loading (the spinner icon in the Google Chrome tab never stops spinning). My ...
0
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1answer
33 views

How to sort results from a custom database table

I've created a custom WordPress database table which I'm using to store 'likes'. The columns I have are: id post_id user_id I'm now trying to get an array of post IDs that a particular user has ...
1
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1answer
78 views

Best way to move live site local

I'm trying to move a big site that's currently live onto my local machine so I can edit locally. I'm using Wamp Server. I've tried using the Duplicator plugin but I'm getting several warnings and ...
3
votes
1answer
117 views

Improve or optimize a very slow query

I have a fairly large database - 113,299 rows in wp_posts and 216,0649 rows in wp_postmeta. There is one custom query that I run after a post is added or edited, which appears in MySQL's slow-log ...
0
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1answer
190 views

Create page with custom php script and fetched data

I created WP page and I need to show a table with some information. This information is hold in a database (hosted on the same server). To be more detailed, I'll try to split my question. I'm new to ...
0
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1answer
30 views

Which is less DB intensive in the loop: custom taxonomies or meta fields?

If I'm checking for a certain variable for each post in the loop, is it less DB intensive to specify that variable using custom taxonomies or meta fields?
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36 views

Get User data from external site

I would like to pull user data into a mobile app. I would create a simple login in the app and send the username and password to my wordpress site. The site would authenticate the user and return user ...
0
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1answer
29 views

Should I use an additional column in the DB?

I'm building a site for a client. They need a functionality where WordPress can tell if a logged in user has viewed a post in order that they might serve a notice or hide the original content. I ...
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3 views

Is it possible to use multiple sub domains using only one WordPress install [closed]

I'm helping a friend of mine with his website, he's an artist and he makes music and films. He wants to have 2 separate websites using sub domains e.g: music.example.com films.example.com I want ...
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18 views

Using one WordPress installation for two sub domains

I'm helping a friend of mine with his website. He's an artist and he's making music & films. he wants to have 2 separate website using subdomains. like this : music.hiswebsitename.com ...
0
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1answer
57 views

Migrating Multisite - Database error, missing wp_blogs table

I am trying to duplicate my WordPress multisite on local with Xampp, but I get error. This are the steps I follow(I will use example instead of my website name): Copy all WordPress 4.0 files to ...
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1answer
32 views

No users table in WordPress's database

I am inside a database and there is no users table in it. Is it possible that the site running using WordPress has no users table? Please guide. Thanks.
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12 views

Store partial database to an archive database time to time

As the community knows me that I'm not a PHP Developer by core, but trying to be one. With the company I'm working, I developed many WordPress powered News Portals, where- They publish at least 30 - ...