b4a -> php mysql error

hello i have a php mysql script

mysql.php:

Code:

  <?PHP
    function connection()
    {
        $con = mysqli_connect(************);  

        mysqli_set_charset('utf8',$con);
      
return $con;
}

    function my_sql_load_wert($tabelle, $index, $indexwert, $suche)
    {
        $con = connection();

        $query = mysqli_query($con, "SELECT `".$suche."` FROM `".$tabelle."` WHERE `".$index."` = '".mysqli_real_escape_string($con,$indexwert)."'");...  

b4a -> php mysql error

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