Cannot output multi-dimensional array - php

Question

I cannot get any output from my multi-dimensional array. I'm trying to get my data using the push_array method.
I would like to get my output as:
John, 1001
Tom, 1002
Jerry, 1003
Sarah, 1004
However, I'm not getting any output. I know the array is working though as I get the following output when I echo $message and do not use $id and $name in my output foreach array.
Current output: (when echoing $message)
1
2
3
4
But nothing gets shown when I use $id and $name as shown here.
<ul class="result"><?php
foreach ($output as $message) {
$id = $message[1][0];
$name = $message[1][1];
?><li>
<?php echo $name; ?>
</li><php } ?>
</ul>
Here is my full code:
<?php
$Download = new Download();
$result = array(); //store results of upload
try {
$Download->showDBFiles();
$output = $Download->getMessages();
} catch (Exception $e) {
$result[] = $e->getMessage();
}
?>
<h2>Output</h2>
<?php if ($output) { ?>
<ul class="result">
<?php foreach ($output as $message) {
$id = $message[1][0];
$name = $message[1][1];
?>
<li><?php echo $name; ?></li>
<?php } ?>
</ul>
<?php } ?>
Function where arrays are defined
protected $messages = array();
public function showDBFiles() {
global $database;
$values=array();
$sql = "SELECT resume_id, resume_title FROM ".self::$table_name;
$result = $database->query($sql);
if(mysqli_num_rows($result)==0){
$this->messages[] = "Database is empty";
}else{
while(list($id, $name) = mysqli_fetch_array($result)){
array_push($this->messages, array($id, $name));
}
}
}
public function getMessages()
{
return $this->messages;
}
UPDATE:
After using the suggestion by jedrzej.kurylo I'm able to have the $id and $name values as shown in my var_dump output:
array(4) { [0]=> array(2) { [0]=> string(2) "73" [1]=> string(2) "qd" } [1]=> array(2) { [0]=> string(2) "72" [1]=> string(3) "jav" } [2]=> array(2) { [0]=> string(2) "70" [1]=> string(4) "da12" } [3]=> array(2) { [0]=> string(2) "71" [1]=> string(3) "jav" } }
However for some reason that I'm unsure of my output is now this:
d
a
a
a

Answer 1

The problem is with how you use array_push here:
$this->messages[] = array_push($values, array($id, $name));
array_push does not return updated array but the new number of items in the array - see http://php.net/manual/en/function.array-push.php. That's why you're getting increasing integers in your output.
Do the following instead:
while(list($id, $name) = mysqli_fetch_array($result)){
array_push($this->messages, array($id, $name));
}
or just
while(list($id, $name) = mysqli_fetch_array($result)){
$this->messages[] = array('id'=>$id, 'name'=>$name);
}
Then you can access $id and $name like this:
$id = $message['id'];
$name = $message['name'];