Warning: trim() expects parameter 1 ... how to fix ?

line 438: $value = trim( $value );

error:

Warning: trim() expects parameter 1 to be string, array given in [path]\includes\ai\adminfunctions.php on line 438

Code (markup):

Full function which causes that error:

function validate_value( &$value, $datatype, $bool_as_int = true, $username_query = true )
{
    global $vbulletin;
    switch ( $datatype )
    {
    case "number" :
        $value += 0;
        break;
    case "integer" :
        $value = intval( $value );
        break;
    case "arrayinteger" :
        $key = array_keys( $value );
        $size = sizeOf( $key );
        $i = 0;
        while ( $i < $size )
        {
            $value[$key[$i]] = intval( $value[$key[$i]] );
            ++$i;
        }
        break;
    case "arrayfree" :
        $key = array_keys( $value );
        $size = sizeOf( $key );
        $i = 0;
        while ( $i < $size )
        {
            $value[$key[$i]] = trim( $value[$key[$i]] );
            ++$i;
        }
        break;
    case "posint" :
        $value = max( 1, intval( $value ) );
        break;
    case "boolean" :
        $value = $bool_as_int ? $value ? 1 : 0 : $value ? true : false;
        break;
    case "bitfield" :
        do
        {
            if ( !is_array( $value ) )
            {
                break;
            }
            else
            {
                $bitfield = 0;
                foreach ( $value as $bitval )
                {
                    $bitfield += $bitval;
                }
                $value = $bitfield;
            }
        } while ( 0 );
        $value += 0;
        break;
    case "username" :
        $value = trim( $value );
        if ( $username_query )
        {
            if ( empty( $value ) )
            {
                $value = 0;
            }
            else if ( $userinfo = $vbulletin->db->query_first( "SELECT userid FROM ".TABLE_PREFIX."user WHERE username = '".$vbulletin->db->escape_string( htmlspecialchars_uni( $value ) )."'" ) )
            {
                $value = $userinfo['userid'];
            }
            else
            {
                $value = false;
            }
        }
        break;
    default :
        $value = trim( $value );
    }
    return $value;
}

Code (markup):

 

It seems that $value is an array. You can modify the function to accept array parameters and handle them in a recursive manner. However, you still have to find a way to find an accurate datatype. (Btw, it's possibile that

$datatype ​

is not "arrayinteger" which doesn't return the expected result.

 

get value by print_r($varible); and check on which position value is you want.. and call it by like $variable[1]; or whatever position it is ... that's it