How to output a multidimensional array? - php

Question

I am new to multidimensional array in php, I read this SO answer and I tried to create my bidimensional array but how do I output it?
$nPost = array("orange, table");
$count_values = array("fruit, forniture");
$final_array = array(array($count_values), array($nPost));
Output would have to be:
Fruits: orange, Forniture: table
Tried
print_r($final_array);
But i got
Array ( [0] => Array ( [0] => Array ( [0] => fruit, forniture ) ) [1] => Array ( [0] => Array ( [0] => orange, table ) ) )
0 fruit, forniture
UPDATE
Real life full code is (explanation in code comments):
<?php
$stack = array();
$userID = array();
$nPost = array();
$blogusers = get_users( 'orderby=nicename&role=author' );
foreach ( $blogusers as $user ) {
// get the language list for each user, and push to array
$descTokens = explode(',', $user->user_description);
$stack = array_merge($stack, $descTokens);
// get the ID for each user, and push to the array
// get the number of posts for each user ID and push to array
$the_user_id = $user->ID;
$numPosts = count_user_posts( $the_user_id );
array_push($userID, $the_user_id);
array_push($nPost, $numPosts);
}
// get the count for each language by counting the duplicate strings
$count_values = array();
foreach ($stack as $a) {
#$count_values[$a]++;
}
$total_duplicates = 0;
foreach ($count_values as $a) {
if($count_values[$a]<=1){
unset($count_values[$a]);
} else{
$total_duplicates += $count_values[$a];
}
}
for($i = 0; $i < count($count_values); $i++){
$final_array[$count_values[$i]] = $nPost[$i];
}
foreach($final_array as $label => $item){
echo "$label: $item, ";
}
?>
// This gives me a correct result but not the n. posts
<ul>
<?php
foreach ($count_values as $key=>$count) {
echo '<li>'.$key.' '.$count.'</li>';
}
?>
</ul>
What we're trying to achieve is:
1 French with 2 posts
3 English with 5 posts

Answer 1

<?php
class User {
public $id;
public $numPosts;
public $languages = array();
public function __construct($id, $numPosts, $lang = array()){
$this->id = $id;
$this->numPosts = $numPosts;
$this->languages = $lang;
}
}
$users = array();
$john = new User(1, 4, array("English", "French"));
$fred = new User(2, 3, array("English"));
$dave = new User(3, 7, array("German", "French", "Spanish"));
$users[] = $john;
$users[] = $fred;
$users[] = $dave;
$langPostCount = array();
$langUserCount = array();
foreach($users as $user){
foreach($user->languages as $lang){
$langUserCount[$lang] += 1; // this is what you already have from $count_values
//$langPostCount[$lang] += $user->numPosts; // can be done here but we'll do another loop
}
}
/*
* the following can be done in the above loop, but you already have that functionality in your code
* just need to do another loop through your languages, tallying the number of posts in that language
* keep in mind this is not entirely accurate as your users have multiple languages. they might have
* one post in english and 4 in french. A better way to do this would be to select the number of posts
* in each language directly from the posts database.
*/
foreach($langUserCount as $lang => $userCount){
foreach($users as $user){
if(in_array($lang, $user->languages)){
$langPostCount[$lang] += $user->numPosts;
}
}
}
echo "<ul>";
foreach($langUserCount as $lang => $userCount){
echo "<li>$userCount $lang with " . $langPostCount[$lang] . " posts.</li>";
}
echo "</ul>";
?>
OUTPUT
2 English with 7 posts.
2 French with 11 posts.
1 German with 7 posts.
1 Spanish with 7 posts.
As you can see, not entirely accurate. You're better off getting post count by querying your posts dataset than by working from the bottom up.
Try This
Adds a new tally to the foreach loop at the top, and changes the ul loop at the end.
$postsPerLanguage = array(); // add this
foreach ( $blogusers as $user ) {
$descTokens = explode(',', $user->user_description);
...
$numPosts = count_user_posts( $the_user_id );
...
// add this loop
foreach($descTokens as $lang){
$postsPerLanguage[$lang] += $numPosts;
}
}
...
<ul>
<?php
foreach ($count_values as $key=>$count) {
echo '<li>'.$key.' '.$count.' with '. $postsPerLanguage[$key] .' posts</li>';
}
?>
</ul>

Answer 2

Your output doesn't need multidimensional array you can achieve it like this:
$final_array = array('Fruits'=> 'orange', 'Furniture'=> 'table')
but for example if you have multiple fruits or furniture you can make something like this:
$final_array = array('Fruits'=> array('orange', 'apple'), 'Furniture'=> array('table', 'sofa'))
and you can access apple like this:
echo $final_array['Fruits'][1];
and for print_r($final_array) we have this:
[Fruits] => (
[0] => orange,
[1] => apple
)
[Furniture] => (
[0] => table,
[1] => sofa
)