Loop multidimensional array from mysql database using php - php

Question

I can't for the life me return single values of my multidimensional array from database. For example, I want to return the value of each key to return in table columns.
This is the array coming from the database:
Array
(
[0] => stdClass Object
(
[student_id] => lvzr0001
[fname] => Hamza
[lname] => ibrahimi
[student_email] => Hamza_ib2#hotmail.com
[course] => CPAN 220 D30
[full_name] => asdfddd
[institution] => asdf
[position] => sadf
[proc_email] => Hamza_ib2#hotmail.com
[phone] => 14168334599
[address] => 20 edgecliffe golfway
[city] => Toronto
[prov_state] => Ont
[postal_code] => M3C 3A4
[country] => Canada
[comments] => adfadsfasdfasdfas
)
[1] => stdClass Object
(
[student_id] => 56gfdsgdfs
[fname] => zxcv
[lname] => cvcvz
[student_email] => dsfb2#hotmail.com
[course] => ELIC 101 90
[full_name] => dfa
[institution] => asdf
[position] => zxcvzxcv
[proc_email] => zxcvzxvc#hotmail.com
[phone] => 4002452345
[address] => 102 yorkland st
[city] => Richmond Hill
[prov_state] => Ont
[postal_code] => l4s1a1
[country] => Canada
[comments] => xzcvzxcv
)
)
I want to get a specific column result like this:
<?php
global $wpdb;
$displayQuery = $wpdb->get_results("SELECT * FROM viewoffcampusproctorrequests");
echo '<pre>';
print_r ($displayQuery);
echo '</pre>';
foreach($displayQuery as $key => $value){
foreach($value as $title => $description){
echo $description['fname'];
}
}
But I only get the entire key values when I echo $description;. How would I access each key item in my array?

Answer 1

You're close: $value is an object, so you can retrieve a particular key/value pair. If you want the value for fname for each object:
foreach($displayQuery as $key => $value){
echo $value->fname;
}