The wpdb class, accessed via the $wpdb global variable, is used to interact with the WordPress database

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WPDB - How to search a column in a table

I have a custom table called wpgrating I have a column there called "ip" Now what I want to do is search for "ip" column and see if there is an entry already there? How can I achieve this?
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62 views

How to query custom post types with mixed AND & OR statements for custom fields

I have a custom post type "events" which includes the custom fields "is_premium" (which is a true/false) and "premium_expiry_date" which is a date picker. On my front end, I want to have "events" ...
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51 views

Get the alphabetical sorted data with wpdb

I have a function in my WP which get the data from database, Here is the function function thebook_get_provider_types() { global $wpdb; static $provider_types; if (! ...
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1answer
58 views

store custom WP table names in a global variable

I was being creative and put this in one of the files loaded with my plugin. Are there implications with storing the table names this way? global $wpdb; if(!defined('DB_ARTISTS')) ...
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1answer
51 views

$wpdb doesn't like to store arrays

I'm attempting to store an array that looks like the one below, into a cell in a database using the code below the sample array. Unfortunately, WordPress doesn't seem to want to save it, and ...
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1answer
29 views

Pulling values from a sepcific row in table

I'm trying to get the first and last name values for ONE person in a database where the meet certain conditions of being a team leader and having a specific project id. Because of this, it will always ...
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1answer
99 views

How to update records using $wpdb?

I am migrating non-wp database to Wordpress (for the first time in my life, and hopefully the last). As both new and old websites are multilingual, one of the tasks for me is to connect the articles ...
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1answer
33 views

Active DB queries in Wordpress?

I just make some researches regarding to wordpress DB queries and I just wonder if I miss something a normal SELECT query for example in Codeigniter with active records would look like if I assume I ...
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253 views

How to add more custom fields in user meta table simultaneously

I am working on a task in which i have to submit some records to user_meta table at form submitting. Actually it is related to employee data and i just want to add records in user meta table. I am ...
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1answer
28 views

wpdb->insert adds too many rows

I have the following code in my functions.php $ar = array( 'price_content' => 'hello' ); $result = $wpdb->insert('hs_prices', $ar); // insert 'hello' into 'price_content' This should ...
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5 views

WPDB Prepare error [duplicate]

I have just taken hosting on for a clients WP site and I am stumped with a WP error The site originally ran on 3.2 but I am upgrading to 3.9 and the client has an error on their them caused by a ...
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44 views

Slow getting posts from category

My blog has over 700,000 articles and my category structure as follows: -Cats Cat 1 (ID: 3) Cat 2 (ID: 4) Cat 3 (ID: 5) ... Cat 20 (ID: 22) I took the articles by using the following SQL ...
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87 views

How to make an sql query to exclude everything but custom taxonomy terms in table wp_terms?

Problem Summary: I am trying to write a SQL query that returns only my custom taxonomy terms, but the table (wp_terms) contains all of the terms, even ones that I don't want (such as category terms, ...
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1answer
152 views

wpdb insert and boolean fields

I'm preparing an insert query like this: $wpdb->insert('table', $data, $format); data array will be: $data = array_push($data, 'resp' => true) problem is, what $format shall i use for a ...
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1answer
67 views

Search Query that Includes Custom Table

I have a WordPress website that grabs product data from a custom table. I would like to be able to also search from fields in the custom table. Could someone provide a sample query of what this would ...
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3answers
2k views

WPDB Insert or if exists Update

I'm not crazy familiar with WPDB or SQL in general but I have a custom table for my project and I'm trying to assign some metadata to it. What I'd "like" to happen is if a row exists, update it and if ...
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2answers
2k views

Alternative to mysql_real_escape_string

I have a WordPress plugin that at one point I need to see if a certain title exists in the database. For 2 years, this code worked fine: $myposttitle= $wpdb->get_results( "select post_title ...
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1answer
74 views

Select two sums with single get_var statement

I am trying the following global $wpdb; $sum = $wpdb->get_var("select sum(first), sum(second) from table where id > 1"); I am unable to get the values from each request. I have tried ...
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92 views

Extracting the post_id via the wp_insert_post action (external db query)

i'm writing a little action plugin. everytime a new post is created, a new table should be created in an external db. The name of the table sholud reflect the post_id of the newly created post, but i ...
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87 views

Query Distinct Taxonomies of Custom Post Type

I have a custom post type called "coupons". These coupons can then be drilled down by "city". City is a custom field that is defined for each individual "coupon". I am then trying to modify a sidebar ...
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1answer
92 views

Custom SQL Query passing array to WHERE p.id

I need to pass an array of post ID's to a custom SQL query I am running on a certain page. The query looks like this: $querystr3 = "SELECT *, events_startdate.meta_value AS the_start, ...
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163 views

Get thumbnail using wpdb from external wordpress database

I'm trying to get thumbnails from posts using a wpdb query where the wordpress database I'm querying is not the one from which the wpdb query is being called. That may be a little unclear, so here is ...
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2answers
660 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' ...
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1answer
39 views

wpdb->update error

I am trying to update the value of an entry in the gravity forms detail table. I am simply trying to update the 'date' field inside of an entry. Here is my query: $update_date = ...
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1answer
92 views

Cannot update custom database table row

I am trying to update a row in a custom database table by $wpdb->update();. In my opinion my code is right but for some reason my database row doesn't update. Can anyone help me with this? I want ...
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1answer
60 views

How to use mysql IN statement with wpdb update method?

I am using wpdb update method and wish to update records where the id is not found within multiple ids. So if I wanted to update records where each had an id of 1 I would do for example: ...
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2answers
73 views

Why does dbDelta() not catch MysqlErrors?

From what I can see, dbDelta() is designed to suppress database errors that occur during its operation. Generally speaking, this seems to be the case, but New Relic is still reporting MysqlErrors ...
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1answer
499 views

$wpdb->prepare with ON DUPLICATE KEY UPDATE

I just took this code from $wpdb Codex page, and modified my existing Insert query: $table = $wpdb->prefix . 'user_req'; $post_id = explode('_', $_POST['post_id']); $user_id = $_POST['user_id']; ...
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1answer
145 views

Detecting errors generated by $wpdb->get_results()

How do I detect errors when using $wpdb->get_results()? For example: $result = $wpdb->get_results("SELECT * FROM this is not a valid query"); The preceding code doesn't generate any exceptions ...
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1answer
78 views

Using $wpdb Class to Pull Recent Comments Across a Network

Been looking for a clean and simple way to produce comments from across a network using the $wpdb database class. I did find this answer, which has been protected, and is four years old. I wrapped ...
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1answer
156 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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1answer
58 views

$wpdb prepare issue with mysql DATE_FORMAT

Today, I have a issue in $wpdb. I used $result = $wpdb->get_var( $wpdb->prepare( "SELECT DATE_FORMAT(report_date, '%d-%m-%Y') FROM table WHERE report_id = %d", $report_id ) ); ...
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1answer
69 views

How do I count columns on a custom WPDB query?

How would I count the columns of a custom WPDB query? This does work although I need a different kind of output: $sql_assoc = "SELECT * FROM test"; $num_cols = count((array) current($sql_assoc)); ...
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1answer
52 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
202 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 ...
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1answer
36 views

I want to select the from values from database in WordPress? [closed]

Here is my code: $sql = 'SELECT * FROM ' . $wpdb->base_prefix . 'item WHERE uname = "'. $_POST['login_name'] . '" '; $result = $wpdb->get_results($sql) or die(mysql_error()); foreach($result as ...
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84 views

There is way to improve this query? wordpress get post data and some meta data

Suppose we have 2 blog with different database A and B. I want to get some post from Blog B to show them on Blog A. The problem comes when the posts have much metadata (custom field for example) that ...
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1answer
332 views

wpdb->insert and stripslashes against sql injection

I've been reading the codex at this page: http://codex.wordpress.org/Function_Reference/stripslashes_deep The code i wrote before reading that page is this: $data = array( 'col1' => ...
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1answer
272 views

Use wpdb->prepare for `order by` column name

In my current plugin, I am picking up the order by column as user input. So I thought of using wpdb->prepare to escape it. $wpdb->get_results($wpdb->prepare("Select id from $wpdb->posts ...
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1answer
45 views

Is there a WP function to get taxonomy name from taxonomy_term_id?

I need to get the taxonomy name from the taxonomy_term_id. I am currently using the following to get it: global $wpdb; $term_taxonomy_table = $wpdb->prefix . "term_taxonomy"; $taxonomy = ...
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2answers
47 views

How to use IN array properly in Wordpress?

I have an array containting these values (including the apostrohpes): 'course_3202','course_3201','course_3200','course_3199' I try to fetch results from these values in postmeta-table. SELECT * ...
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54 views

Run query once inside a loop

I am trying to prevent to much queries inside a plugin one of my plugins. I have a query inside a function which will output a complete block with some layout elements and an input element which will ...
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1answer
19 views

get the number of queries made on a page(inside my plugin)

Is there an easy way to see how many queries you make on a page(inside my plugin)? As I dont want to many queries in my plugin.
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1answer
56 views

how to get db values without using an loop with wpdb->get_results()

So I want to return the data from 1 row from my custom DB table, but I dont want to use a loop as I only need the values once....so is there a way to do this? $results = ...
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71 views

Best way to execute custom page-specific mysql queries

I would like to query a secondary mysql database (not the Wordpress mysql database) with page-specific queries. I've seen many answers / tutorials on setting up a secondary mysql database, like: ...
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2answers
106 views

wpdb prepare: passing varible number of fields as second argument

As i want to manage the NULL fields in my db and wordpress functions doesn't allow to do so, i will need to dynamically generate a query depending on the situation. The problem is that i don't know ...
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2answers
743 views

Inserting data into `post meta` table?

How would I be able to insert data into the post meta table? I know how querying and wpdb works but I have no idea how I can just insert it into the table. I have these two fields I want to insert ID ...
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1answer
1k views

how to use $wpdb->prepare to update a custom table

As a noob I dont understand a lot of SQL injections but I need to be save so I have read that I have to use wpdb->prepare to make sure the data is stored correct. At this moment I use the ...
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1answer
16 views

looking for a way to allow users to backup the plugin db data(save as)

I have a custom build plugin and I want to add the option to let the user save the plugin data(not using a thirdparty plugin to do this for me). So if a user clicks on the button it will allow them ...
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2answers
38 views

Get published posts and pages?

I'm working on a plugin to use gettext in posts and pages content. I'm trying to get all published posts and pages in order scan them for translatable strings, but I cannot figure out how to do it. ...