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

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38 views

wp_insert_post another database with custom field

wp_insert_post with the command you want to transfer the contents to another database, I use the following command <?php require('wp-config.php'); $conn = mysql_connect($dbHost, $dbUser, ...
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71 views

How to parse meta value from user specific post to google charts?

I'm currently working on a project where i need to visualize the progress of users (fitness). For that i have created a custom post type with custom fields. I want to parse the meta values associated ...
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1answer
73 views

$wpdb->get_var - What value is returned when zero records are found?

I have the following code: $queryPermission = $wpdb->get_var( $wpdb->prepare("SELECT Active FROM testers WHERE user_id = '$user_id' ")); ...
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1answer
65 views

single.php not pulling in any data from database

My single.php doesnt seem to be fulling any information through from the database for the current post. here is my single.php code: <?php get_header(); ?> <div class="main-container"> ...
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2answers
101 views

Installing local to live WP into subdirectory

I am having a bit of trouble moving a local WP site live and into a subdirectory. I want a static homepage for now (index.html in the root folder) while I work on the live site (would be found in ...
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2answers
59 views

Duplicate domain database to local - How?

I've noticed that my process is rather slow and i'd like to speed it up. I want to be able to duplicate my database from my domain which is blueharlequin.com and work locally thus speeding up the ...
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2answers
177 views

Should I global $wpdb outside of any of my plugin's functions scope?

I know that the general advice to global variables is to not use them at all. Still, when doing something with the Wordpress database, it is required to do global $wpdb; to access the methods ...
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1answer
105 views

Wordpress database error - Error in SQL syntax - I can't identify any error?

I am trying to write function that checks whether an email address is stored in my database or not. I've written the following PHP code:: function check_my_users( $email_address ) { global ...
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votes
4answers
531 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 ...
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1answer
38 views

Understanding WordPress Search

I am trying to create a custom search similar to the one on totaljobs.com but through a WordPress site. Essentially I would be able to search for both search terms and location simultaneously. The ...
1
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1answer
56 views

How to store custom user data on the database?

I'm developing a WP multi-site network which have a goal of 10,000 sub blogs. The site needs to store custom data related to the user. There are additional 20 fields of data for each user. What is the ...
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1answer
39 views

What is the purpose of storing `siteurl` in database?

Why does WordPress store 'siteurl' and 'home' in the database? It's driving me crazy because I develop locally, deploy to a staging site, AND to a production site, so that's two-three times I have ...
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1answer
35 views

How to display posts by vote count and if no value continue with latest posts with no votes?

Maybe someone can help me with this. I want to display posts by votes. Users can only vote up. So what I want is - the most voted posts by vote count on top and then latest posts with no votes. The ...
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53 views

How to select from a WP table every 10s in a class (OOP)?

I'm trying to select records every ten 10 seconds from columns message and messagetwo from my WordPress table wp_userlogin, but the code is not being executed. I'm calling wp_schedule_event when my ...
17
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6answers
18k views

Using wpdb to connect to a separate database

I want to connect wpdb to another database. How do I create the instance and pass it the database name/username/password? Thanks
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4answers
275 views

Retrieving a Value from a wp-database

why my sql statement is not returning any value.. is this wrong? <?php global $wpdb; $result = $wpdb->get_results($wpdb->prepare("SELECT * FROM ...
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2answers
271 views

Import External XML

I don't know where to start with this one. I would like to create custom post type which will list properties on clients website. I would like those properties being feed from another ...
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0answers
22 views

Removing Mutlisite lines stop DB connection

I'm trying to revert my mutlisite to a single site and following a guide it recommends removing the following /*define( 'MULTISITE', true );*/ define( 'MULTISITE', false ); define( ...
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4answers
3k views

Export wordpress table to excel

I have created PHP scripts before to export a database table to .xls format like this: $select = "SELECT * FROM tracking"; $export = mysql_query ( $select ) or die ( "Sql error : " . mysql_error( ) ...
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0answers
66 views

A plugin is giving me “You do not have sufficient permissions to access this page.” error

I noticed this morning that I was logged off from my site. Whenever I tried to access /wp-admin it gave me a "You do not have sufficient permissions to access this page." error. After an hour of ...
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1answer
43 views

Access Wordpress database outside of Wordpress

MAIN QUESTION: I am writing a wp plugin. Within it, I have a page located here: http://example.com/wordpress/wp-content/plugins/myplugin/page.php How do I access WP database from this page? Is ...
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1answer
84 views

Is $wpdb->prepare escaping to much? How to use it properly?

Im pretty much confused by $wpdb->prepare. I want to use it to sanitize user input but it turned out that it destroys the query. I cannot imagine that this is how it's intended to work but I can't ...
2
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1answer
1k views

Database sync between local and production

I was watching Mark Jaquith's presentation at WCSF 2013 recently and in the Q&A Mark mentioned something about rsync - after a quick Google I can see this is done via SSH - my question is this: is ...
3
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1answer
197 views

Should I use Transients with W3 Total Cache APC Caching?

Should I use Transients in my queries like this? <?php if ( ! $my_paged = absint( get_query_var( 'paged' ) ) ) $my_paged = 1; if ( ! $my_query = get_transient( "567recent_$my_paged" ) ) { ...
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votes
2answers
9k views

Connect to database using wordpress wp-config file

How can I connect to the database using the wp-config.php file ? I'm trying to make a script more Wordpress friendly, and I need to connect to the database, but without installing the script as a ...
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1answer
224 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 ...
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20 views

Save voting stats with Posts 2 Posts

I am working on a website where I make connections from posts to posts with the Wordpress Posts 2 Posts plugin. Now I want my website users can vote whether they think the 2 connected posts are a good ...
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3answers
3k views

Can posts have parents?

Are posts supposed to have parents? If so, what would that mean for a post to have a parent? Also, if there are some constraints to posts having parents, then where is that enforced? Not in the DB as ...
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1answer
61 views

Remote database -> massive response time increase?

I have nginx web server running newest WordPress and DB server running MySQL 5.6 There is around 90-100ms latency(round-trip delay) between those 2 servers. The problem is that It takes about 5000 ...
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2answers
45 views

How should I store a log for my plugin

I have a plugin that sends data to a server as part of a transition_post_status action. The server sends a response each time. I want to keep a log of these responses (permanently) that I can display ...
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4answers
707 views

Multisite database upgrade SSL error

I have upgraded my Multisite setup WordPress to 3.6.1. And after that, when I do Network Upgrade > Database Upgrade it's showing: Warning! Problem updating http://www.example.com/site1. Your ...
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1answer
1k views

How to create database table, add data, update and delete using wpdb via plugins?

I am just starting out to create plugins with database. I know to create a custom database when activating the plugin. I just want to know whether we can create tables at the front end like adding the ...
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0answers
35 views

Mysterious template change after database import/export

When I switch databases from my local environment to the host, some of the pages inexplicably change templates. E.g. there is a custom template "Home" and when I switch the db's it ends up with the ...
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1answer
100 views

How to create custom tables in WordPress using my own plugin?

I am new in WordPress plugin development. This is my core PHP and HTML code create-table.html <form method="post" action="function.php"> <input type="text" name="table_name"> ...
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2answers
338 views

Different database query in function.php using mysqli

I am trying to connect to a database in the function.php using mysqli. The code seems to run fine when it is not on a separate php file not on wordpress. But when I run it on wordpress I get "Connect ...
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0answers
70 views

Problem with Featured Image and database

I have an issue with with WordPress install which I just haven't been able to resolve... I have tried disabling all plugins and reverting back to default theme, but the problem remains. The issue is ...
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1answer
3k views

Simple form that saves to database

I am using a 3rd party service that does a scrub of my database for new entries within a specific table. However I am been unable to find a simple form plugin that submits data to the wordpress ...
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0answers
53 views

wp_usermeta key problem

I am trying to add a meta key to wp_usermeta but it does not work at all. The key would get value from a checkbox. I used the code from Wordpress codex tutorial and it's not adding anything. I will ...
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2answers
62 views

Can WP give a value a post ID?

So I have queried out some data from another DB and obviously they're not a post which means I can't use the standard permalink to link them to an existing page with it's post type. So I thought that ...
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0answers
18 views

Are custom tables a good solution for adding lots of data to the site?

On a fairly high trafficked website (10-20 million page views per month), we're looking to add a large amount of data to build data-driven pages. Think of adding 1000s of restaurants to create ...
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1answer
38 views

Custom Post Type not showing anything added by code anymore?

So I have a piece of code written and it worked before, hasn't been edited hasn't been changed, no updates on the WP DB no updates on any plugin on WP and it's suddenly not working correctly. This ...
10
votes
1answer
177 views

How can I trust switch_to_blog()?

When I call switch_to_blog() with a blog id, I don’t know if that blog actually exists. The functions returns always TRUE. Here is my problem: switch_to_blog( PHP_INT_MAX ); $post = get_post( 1 ); ...
1
vote
1answer
3k views

Connect forms in WP to external database

I want to use Wordpress for an existing site (coded in PHP). It has some forms (for member subscription, user can update their data etc.) which are connected directly to an existing database. I don't ...
8
votes
1answer
126 views

How can I make updates to a site, on a development copy, but then move updates back without overriding live site's evolving database?

I've tried to be as descriptive in the title as possible, and I know this question has been asked in before in various forms but I could not find good answer to it and it's are to imagine that no one ...
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vote
1answer
86 views

How to determine what is generating large amount of database queries?

For some reason, my Wordpress site is using a lot of memory (spiking at 72MB) and generating a huge amount of database queries (76923 according to Wp-Memory-Usage. I'm really not sure why this would ...
1
vote
1answer
62 views

Query Wordpress database by registered date and role

I would like to get the display name and email address for all users who have registered to my multisite today with the role of subscriber. It needs to be an SQL query as it's used outside of the WP ...
0
votes
2answers
35 views

Is it possible to have more than 1 sql databases in my wordpress blog?

I m watching video on installing wordpress manually. on first launch wordpress prompts you to input your sql database name, sql password etc. then i can start working from dashboard. is it ...
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14 views

Bookmarking a post in exchange for an email?

I was asked to implement a feature that this website https://medium.com/ has, which is the ability to bookmark a specific post by making the user register an account with the website. This is the ...
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0answers
35 views

Email notifications: Where in database to save user options?

I'm working on an email notifications plugin which sends emails when events happen on my site. So for example, if someone comments on a post, the post author will receive a custom email notification. ...
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0answers
43 views

What method should I use to store my plugin data (multi level menus with options on each item)

So the background on my plugin - it generates taxonomy/term filters to give you a filtering system similar to what you'd see on NewEgg where you filter your results by category/manufacturer/other ...