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Returning multiple rows with MySqli and arrays

Over the past two days, I have converted my functions to mysqli. I ran into a problem. I have a function that returns an array containing a row from a database. However, I want the array to contain several rows compared to one. Also, how do I manage to highlight individual posts. Here is my unsuccessful attempt, which displays only one row in an array.

$mysqli = new mysqli("localhost", "user", "password", "database");   

function display_posts ($mysqli, $user_id) {

   $fields = "`primary_id`, `poster_id`, `profile_user_id`, `post`";   

   $user_id = (int)$user_id;

   $query = "SELECT DISTINCT $fields FROM `posts` WHERE `profile_user_id` = $user_id 
   LIMIT 4";                    

   if ($result = $mysqli->query($query)) {

   $row = $result->fetch_assoc();

   return $row;

   $result->free();

   $stmt->close();

}}

Here I am trying to display data.

$user_id = 1;

$posts = display_posts($mysqli, $user_id);

//Not sure what to do with $posts. A While loop perhaps to display each post?
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3 answers

You must use a loop to get them all at once:

<?php
function resultToArray($result) {
    $rows = array();
    while($row = $result->fetch_assoc()) {
        $rows[] = $row;
    }
    return $rows;
}

// Usage
$query = 'SELECT DISTINCT $fields FROM `posts` WHERE `profile_user_id` = $user_id LIMIT 4';
$result = $mysqli->query($query);
$rows = resultToArray($result);
var_dump($rows); // Array of rows
$result->free();
+11
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Why not use it directly like this:

$result = mysqli_fetch_all($mysqli->query($query), MYSQLI_ASSOC);
+6
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, , , :

$mysqli = new mysqli("localhost", "user", "password", "database");
$fields = "`primary_id`, `poster_id`, `profile_user_id`, `post`";

function display_posts () {

    global $mysqli;
    global $fields;

    $query = "SELECT DISTINCT $fields FROM `posts` WHERE `profile_user_id` = $user_id LIMIT 4";

    $posts = $mysqli -> query($query) or die('Error: '.$mysqli -> error);

    if ($posts -> num_rows > 0) {

        while ($row = $posts -> fetch_assoc()) {

        $value = $row['/*The table column here (You can repeat this line with a different variable e.g. $value 2, $value 3 etc and matching them with the respective table column)*/'];

        echo $value./*Concatenate the other variables ($value 1 etc) here*/'<br />';

        }

    }else {

        echo 'No records found.';

    }

}

//Call the function
display_posts ();
+1

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