I'm trying to randomly insert a name if the variable is empty but I keep getting the error message

Array to string conversion

my attempt so far

<?php 

require('classes/Data.php');

$db = new Database;
$post =  json_decode( file_get_contents("php://input"),true );
$totalScore = $name = $totalScore = $correct = $wrong = "";
$totalScore = $post['totalScore'];
$correct = $post['correct'];
$wrong = $post['wrong'];
$name = $post['person'];

if(empty($name)){
$name = array(1 => "Shrewd Farseer", 2 => "Verity Farseer", 3 => "Dutiful Farseer", 4 => "Chade Fallstar", 5 => "Chivalry Farseer", 6 => "Regal Farseer",
7 => "Shrewd Farseer", 8 => "FitzChivalry Farseer", 9 => "FitzVigilant", 10 => "Shine Fallstar", 11 => "Prosper Farseer", 12 => "Integrity Farseer", 
13 => "August", 14 => "Merry Farseer", 15 => "Nettle", 16 => "Bee"
);
shuffle($name);
implode($name);
}
$scores = new Data();
$scores->addData($totalScore, $correct, $wrong, $name);

$success = ['response' => 'true'];   

header('Content-Type: application/json');
echo json_encode($success);

class

<?php 
require('classes/Database.php');
class Data{
	


public function __construct()
{
    $db = new Database;
    $db->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_WARNING);
    $this->db = $db;
}


function addData($totalScore, $correct, $wrong, $name){
	$this->db->beginTransaction();
	$insert = $this->db->prepare("BEGIN;
	INSERT INTO gamescore (totalScore, correct, wrong) VALUES (:totalScore, :correct, :wrong);
	INSERT INTO usernames (person, scoreId) VALUES (:name, LAST_INSERT_ID());
	COMMIT;
	");		
	$insert->execute(array(
	':totalScore' => $totalScore,
	':correct' => $correct,
	':wrong' => $wrong,
	':name' => $name
	));
	$this->db->commit();
}
}

    You need to assign the return value of implode to $name.

      I'm not 100% sure I know what that means, so I tried

      if(empty($name)){
	$character = array(1 => "Shrewd Farseer", 2 => "Verity Farseer", 3 => "Dutiful Farseer", 4 => "Chade Fallstar", 5 => "Chivalry Farseer", 6 => "Regal Farseer",
	7 => "Shrewd Farseer", 8 => "FitzChivalry Farseer", 9 => "FitzVigilant", 10 => "Shine Fallstar", 11 => "Prosper Farseer", 12 => "Integrity Farseer", 
	13 => "August", 14 => "Merry Farseer", 15 => "Nettle", 16 => "Bee"
	);
	shuffle($character);
	$name = implode(',',$character);
	return $name;
	}

        Got there in the end, I was using the wrong function

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