problem with ä ö ü in mysqlquerry - json_encode

Question

I have the problem that the row in there the row contains an ä ö ü is missing all other rows get printed. choosed utf-8 Kollation.
Code:

$db_res= mysqli_query($db_link, "SELECT * FROM `module` SET NAMES 'utf8'") or die (mysql_error());
$modulArray = array();
while($row=mysqli_fetch_array($db_res)){
if ($row!=false) {
array_push($modulArray, json_encode($row));
}

Answer 1

add this constant as a second argument to the json_encode function "JSON_UNESCAPED_UNICODE":

https://code.sololearn.com/wwfY2syIJAQH/#php

Answer 2

the solution was :

while($row=mysqli_fetch_array($db_res)){
if ($row!=false) {
array_push($modulArray, ($row));
}
;-)