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

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4
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1answer
5k views

Update Option Stored in Multi-Dimensional Array

I have data in the wp_options table currently stored as a multi-dimensional array (profile_element_order): ...
3
votes
2answers
2k views

remove missing image attachments

Best way to programatically remove attachments that are missing images? I ask because after using a caching plugin, I have images that have been input in the database as attachments that don't ...
2
votes
1answer
821 views

Has anyone tried putting PHP ActiveRecord on Wordpress?

I have worked with Ruby on Rails and I was looking for some code that did something close to the wonderfull RoR's ActiveRecord. I stepped by this site. Its PHP-ActiveRecord! I found it amazing, and ...
1
vote
6answers
11k views

After server migration only the homepage works

I have recently changed hosting of my WordPress site to VPS.net. I have moved all of my files and imported the database. Everything appeared to be fine until I clicked a link and noticed that all of ...
6
votes
2answers
2k views

$wpdb won't insert NULL into table column

When i try something like this $status = NULL; $wpdb->update( 'table', array( 'status' => $status, ), array( 'id' ...
5
votes
2answers
1k views

Does dbDelta delete columns as well?

I created a table using the dbDelta function and then removed a few columns and added a few. The new columns did get created but the old columns did not get deleted from the table. Is there a ...
5
votes
2answers
17k views

How to get the post publish date outside the loop?

I need to pull out the post publish date in order to make the post post auto expire. The thing is I can't get the right publish date. Here is my code: global $wpdb; $post_ids = ...
4
votes
2answers
3k views

Special characters in WordPress UTF-8 [closed]

I have a problem regarding special characters that are appearing messed up on the front-end . mainly the get converted to question marks, or something like �?) Example - Frédèric becomes Fr�d�ric. ...
3
votes
5answers
2k views

How to run Two Wordpress blogs with different themes and with single database and same content

How do you run two Wordpress blogs with different themes using one database where the content remains the same in both sites? The issue that I am getting is at the Domain mapping in both blogs.
2
votes
2answers
308 views

What is an efficient way to query based on post_meta?

The problem I am having is when I allow users to filter posts it overpowers the database and things run extremely slow. I am unsure what the best way to query posts using meta values is. My site has a ...
2
votes
2answers
785 views

Using Disqus, how to stop storing comments in wp database?

I'm using disqus comments system, but it keeps storing the comments in the wordpress database as well. Is there way to disable option to store comments in wordpress database because I don't see any ...
2
votes
3answers
4k views

Login in Wordpress using external database data

I have a WP site and also have a external DB (means not WP DB) with users. The insertion process at that table uses the same algorithm as WP uses. What I'm need to do here is login in WP but using ...
1
vote
1answer
3k views

How to build a movie database with wordpress?

I'm looking for a plugin to build a movie database like Popcritics The plugin would permits me to add custom info (like CustomPress can do) about a movie. Ultimately, the plugin could permit users ...
1
vote
1answer
2k views

How to make sense of the active_plugins option_value to enable and disable certain plugins from the database?

Can anyone explain how to interpret and make sense of the active_plugins option_value string in WordPress. And then use this string/ array to disable and activate specific plugins? Here is an ...
1
vote
2answers
1k views

Query from a different database than the default

I'm making a layout for a wordpress page. The layout needs to connect to a second database (both databases are in the same domain). But the problem is, when i execute just the file it works. But ...
0
votes
2answers
5k views

Connect to remote database using Localhost install

I will be designing and developing a website for a client but want to allow the client to add content while I am working on the design and development of the site so that it is pretty mich done by the ...
0
votes
1answer
4k views

How To Find Out Wordpress Category Table in MYSQL?

I know WordPress stores all post data in 'wp_posts' table. But here WordPress not define any category id or reference related with it. Please let me know, how 'wp_posts' table find out exact ...
0
votes
1answer
979 views

Front-end update_post_meta with ajax

as written in title I'm trying to update a post_meta using Ajax. Actually I'm a complete newbie to Ajax and how it works so, if it is possible, I would appreciate if someone could 'take me by hand' ...
0
votes
2answers
583 views

storing database in version control

I am using a version control system to manage my wordpress code (git). What is the betst way to store the database information into version control? I want to go to my staging machine, run git pull ...
4
votes
5answers
2k views

How many users can WordPress handle?

I want to design a member login site in WP but I have a doubt that is WordPress can handle more than 40000 users on same database? I am not sure about this so I am stooping my work here. So please ...
3
votes
2answers
782 views

How to delete custom field “suggestions” from dropdown list

When you use a standard custom field in WP you have to write the name of the cusotm fields the first time. The second time you use a custom field it sticks to the custom fields dropdown list. But, ...
3
votes
1answer
1k views

How to convert regular categories to custom taxonomy?

I have a big list of categories/subcategories (around 60 in all). It now makes sense that instead of these categories being available to any post type's category list, these categories should be moved ...
2
votes
1answer
459 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 ...
2
votes
1answer
54 views

Text snippets shared across posts

I'd like to add a "fast facts" section to a wordpress site - an area in the sidebar where snippets of text are rotated. Where is the best place to store things like this? Widgets don't really allow ...
2
votes
2answers
4k views

Two WordPress sites sharing the same content

My question is this: Is it possible to have two separate installations of WP with two separate domains sharing the same content? Scenario: User on http://A.mysite.com publishes a post. ...
2
votes
2answers
2k views

WordPress Database Charset/Collate

Is there an easy way of getting the charset and collation of the DB tables in WordPress without resorting to SQL queries?
2
votes
1answer
339 views

How do I write this SQL statement for Posts written in last 24 hours?

Someone gave me this SQL code to count the number of posts (of post_type 'mixtapes') in the last 7 days. I tried to convert it to 'in the last 24 hours' as well, but it's giving the wrong number. ...
2
votes
2answers
532 views

What's the most efficient database method to add and query usermeta?

What's the most efficient way - concerning the database - to add and query extra usermeta fields to a profile? I need to add four additional fields of numeric and text data to a user profile and then ...
2
votes
1answer
2k views

Split WP install between 2 databases?

Is it possible for Wordpress to work from two databases? The reason I ask is that we're approaching our 100mb limit for database size on our host (1and1) but have up to 100 databases, so what I was ...
2
votes
1answer
298 views

What Is The Difference Between suppress_errors() And hide_errors() in $wpdb?

What is the difference between the suppress_errors() function and the hide_errors() functionin wpdb class? What is the use of each function?
1
vote
1answer
131 views

Can I store my custom comment_type into wp_comments table?

I'm developing a system where a post can have multiple replies/feedbacks. As of now I's storing each of the comments as a serialized postmeta. But just today I figured out that I can use the existing ...
1
vote
0answers
357 views

Strange Deadlock database error for the query “Delete From wp_options”

I'm experiencing a strange Database error in these days, and it could the the cause of the slowness of my website (tasc.it) in these days. I found this error in the PHP error log, I can see about 4-5 ...
1
vote
1answer
320 views

Hello dolly type plugin that allows people to add their own

I am making a plugin that shows a random joke on a custom 404 page via shortcode and it is basically near enough the same as the default hello dolly plugin, where the jokes are hardcoded into the ...
1
vote
1answer
420 views

Custom post type Vs. data in own table

I'm trying to get started with WP development. So far I've been using it with other's people plugins and themes so I'm kind'a stuck. I've read many many many things about, but I can't find simple ...
1
vote
1answer
2k views

Accessing WordPress MySQL Database via Data Connection in Visual Studio 2010 using C#

So I've Googled and followed countless tutorials, read documentation on MySQL, Visual Studio, WordPress, and Plesk. I try to leave posting on this site as the final option and it seems it has come to ...
1
vote
1answer
529 views

Migrating WPMS from apache to IIS7 causes Database Error

// Be sure to read the updates at the bottom I have a large multisite installation hosted on XAMPP on an XP 2003 server and am trying to move it from XAMPP/Apache to a new Windows 2008 server with ...
1
vote
1answer
1k views

Use Custom Database with Custom Post Type

I decided to ask this question as searching online left me really overwhelmed and not knowing which direction to take. I am about to tackle a project that has its own custom database (finished e-r ...
1
vote
1answer
194 views

Prevent WordPress from loading comments

I'm displaying the comments for a post my way, using $comm = get_comments() and then passing $comm to wp_list_comments() (this is the reason why). How to disable WordPress from loading comments from ...
1
vote
2answers
1k views

Custom Taxonomies Incorrectly Counting Revisions?

(Moderator's note: The original title was "The count of my custom taxonomy is incorrect; it's counting revisions") Has anybody run into this before? I've added two custom taxonomies, and the count ...
0
votes
2answers
58 views

Can't update database after wordpress update from 3.8.1 to 4.4.1

I have just updated wordpress 3.8.1 to 4.4.1. Tried to update in various ways: Before updating I have deactivated all the plugins and switched to the default theme provided by wordpress i.e. ...
0
votes
1answer
128 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 ...
0
votes
1answer
454 views

Hook into $wpdb

Is there a way to hook into the WPDB instance ($wpdb)? What i basically want, is to execute a own function BEFORE the desired query get's executed. Is this possible? Additional question for comment ...
0
votes
0answers
372 views

Would manually deleting the dumping data fix a “#1062 - Duplicate entry '1' for key 'PRIMARY'” phpMyAdmin error?

I'm new to PHP! I'm trying to import an SQL database file into myPhpAdmin for a WordPress I'm migrating, but I keep getting this error message: SQL query: `-- -- Dumping data for table ...
0
votes
2answers
72 views

Database custom table issues - incorrect result displayed

First things first: I've spent most of today going over these forums; the stackoverflow forums; the php.net manual; and a bunch of random sites I found through Google Search - so, if I've missed the ...
0
votes
0answers
276 views

“Database Connection Error” upon install in Apache VirtualHost document root.. Why did this happen?

I have apache virtualhosts up and confirmed working. I want to install wordpress for one of the vhosts, so I unpacked all the wordpress files in the document root for that vhost. I proceeded to follow ...
0
votes
1answer
1k views

“MySQL server has gone away” since update to 3.8

I have a WordPress install on a dedicated server with decent memory (upwards of 8GB). The WordPress install includes many plugins - 50 active plugins. Most important to note is the WPML plugin to ...
0
votes
2answers
4k views

How to delete all records from or empty a custom database table?

I can't seem to find a simple reliable way to do this - perhaps?: // delete row ## global $wpdb; $delete = $wpdb->query( $wpdb->prepare( "DELETE * FROM `wp_table_name`" ) ); ...
0
votes
1answer
85 views

Sub-domain or 2nd, temporary different domain?

I'm developing a Wordpress site for a website that already exists (that's not currently using Wordpress). The current website cannot be taken down until the new Wordpress site is ready to replace it. ...
0
votes
2answers
4k views

Synchronizing Two WordPress Sites Content

I've googled a lot, and I do have found answers at WordPress SE and at stackoverflow.com. However, the answers are somewhat incomplete or doesn't work at all. Here I'll explain my problem in detail, ...
0
votes
1answer
149 views

Is altering a default WordPress database table update safe?

I want to add some table columns to the wp_terms table. Is it safe to use the dbDelta function with a modified CREATE-MySQL query for this? Or will I run into problems in the long turn? Is it update ...