Wordpress Query formcraft table echo fields to screen - php

Question

First time working with Wordpress. I am looking to get a random row from a formcraft table so I can publish the winner of a draw from a bunch of registrations on a page.
The content I want from the formcraft table is stored like this in a column called content in a table called wp_formcraft_3_submissions:
[
{\"label\":\"Name\",\"value\":\"Annette\",\"identifier\":\"field1\",\"type\":\"oneLineText\",\"page\":1,\"page_name\":\"Step 1\",\"width\":\"100%\",\"altLabel\":\"Name\"},
{\"label\":\"Company Name\",\"value\":\"My Co \",\"identifier\":\"field3\",\"type\":\"oneLineText\",\"page\":1,\"page_name\":\"Step 1\",\"width\":\"100%\",\"altLabel\":\"Company Name\"},
{\"label\":\"Email\",\"value\":\"annette#email.com\",\"identifier\":\"field6\",\"type\":\"email\",\"page\":1,\"page_name\":\"Step 1\",\"width\":\"100%\",\"altLabel\":\"Email\"}
]
I am trying to pull a random row, then publish name, company name.
I am stuck, and wordpress is not logging any errors though I have turned on error logging. I am doing this via a shortcode. I would like to echo the contents on the screen to start with, but ultimately, echo just the three fields.
function wa_awards_winner() {
global $wpdb;
$sql = $wpdb->query("
SELECT *
FROM wp_formcraft_3_submissions
ORDER BY RAND()
LIMIT 1
");
$result = $wpdb->get_results( $sql );
if ( ! $result ) { return false; }
$winner = json_encode($result[0]->content);
echo $winner;
}
add_shortcode( 'get_wa_awards_winner', 'wa_awards_winner' );
Untilmately I am trying to get these values like this but it is not working:
// NAME
echo '<h3 class="col">' . $winner[0][0] . '</h3>';
// COMPANY NAME
echo '<h3 class="col">' . $winner[1][0] . '</h3>';
// EMAIL
echo '<h3 class="col">' . $winner[2][0] . '</h3>';
Appreciate any help. Thanks.
Trying suggestion below like this:
$winner = json_decode(stripslashes($result[0]->content),true);
echo '<div style="color:white;">' . print_r($winner, true) . '</div>';
I get;
[13-Jun-2019 12:28:25 UTC] PHP Notice: Undefined offset: 0 in /var/www/site.com/wp-content/themes/dp-click-Child/functions.php on line 30
[13-Jun-2019 12:28:25 UTC] PHP Notice: Trying to get property 'content' of non-object in /var/www/site.com/wp-content/themes/dp-click-Child/functions.php on line 30
This works thanks to suggestion below:
$sql = "
SELECT *
FROM wp_formcraft_3_submissions
ORDER BY RAND()
LIMIT 1
";
$result = $wpdb->get_results( $sql );
I then try and access the info lke this:
$winner = json_decode(stripslashes($result[0]->content),true);
echo var_dump($winner);
echo '<h3 style="color: white;">NAME: ' . $winner[0]["Name"] . '</h3>';
echo '<h3 style="color: white;">COMPANY: ' . $winner[1]["Company Name"] . '</h3>';
echo '<h3 style="color: white;">EMAIL: ' . $winner[2]["Email"] . '</h3>';
The var_dump returns:
array(3) { [0]=> array(8) { ["label"]=> string(4) "Name" ["value"]=> string(14) "Annette" ["identifier"]=> string(6) "field1" ["type"]=> string(11) "oneLineText" ["page"]=> int(1) ["page_name"]=> string(6) "Step 1" ["width"]=> string(4) "100%" ["altLabel"]=> string(4) "Name" } [1]=> array(8) { ["label"]=> string(12) "Company Name" ["value"]=> string(19) "My Company" ["identifier"]=> string(6) "field3" ["type"]=> string(11) "oneLineText" ["page"]=> int(1) ["page_name"]=> string(6) "Step 1" ["width"]=> string(4) "100%" ["altLabel"]=> string(12) "Company Name" } [2]=> array(8) { ["label"]=> string(5) "Email" ["value"]=> string(20) "annette#email.com" ["identifier"]=> string(6) "field6" ["type"]=> string(5) "email" ["page"]=> int(1) ["page_name"]=> string(6) "Step 1" ["width"]=> string(4) "100%" ["altLabel"]=> string(5) "Email" } }
But my variables return empty:
NAME:
COMPANY NAME:
EMAIL:

Answer 1

First you need to make "stripslashing" and to turn the given string to JSON data. Then you need to decode it, not encode.
Here it is:
$winner = json_decode(stripslashes($result[0]->content),true);
echo $winner[0]["value"];
And one more thing. $wpdb->query can't be used inside get_results. Remove those and use this instead
$sql = "
SELECT *
FROM wp_formcraft_3_submissions
ORDER BY RAND()
LIMIT 1
";
$result = $wpdb->get_results( $sql );