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config_check_valid_option()

Description

Server side validation for saving values submitted using the page generation functions "config_add_...()" and
created with config_generate_html(). For example, the system configuration page.

Parameters

ColumnTypeDefaultDescription
$def array Array containing field definition e.g. from config_add_integer_input()
$value: mixed false; switch $def[0]
$value mixed User submitted value to be checked.

Return

bool True if the option is valid, else false.

Location

include/config_functions.php lines 2446 to 2468

Definition

 
function config_check_valid_option(array $def, mixed $value): bool
{
    $result = false;
    switch ($def[0]) {
            case 'integer_input':
                $range_start = $def[3];
                $range_end = $def[4];
                $result = (is_int_loose($value) && (int) $value >= $range_start && (int) $value <= $range_end);
                break;
            case 'single_select':
                $valid_options = $def[3];
                $result = in_array($value, $valid_options);
                break;
            case 'boolean_select':
                $valid_options = array('0', '1');
                $result = in_array($value, $valid_options);
                break;
            default:
                $result = true;
                break;
        }
    return $result;
}

This article was last updated 19th February 2026 11:35 Europe/London time based on the source file dated 19th February 2026 08:55 Europe/London time.