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render_select_option()

Description

Renders a select element.

Takes an array of options (as returned from sql_query and returns a valid
select element. The query must have a column aliased as value and label.
Option groups can be created as well with the optional $groupby parameter.
This function retrieves a language field in the form of
$lang['cfg-<fieldname>'] to use for the element label.

<code>
$options = sql_select("SELECT name AS label, ref AS value FROM resource_type");

render_select_option('myfield', $options, 18);
</code>

Parameters

ColumnTypeDefaultDescription
$fieldname string Name to use for the field.
$opt_array array Array of options to fill the select with
$selected mixed If matches value the option is marked as selected
$groupby string '' Column to group by

Return

string HTML output.

Location

include/config_functions.php lines 27 to 55

Definition

 
function render_select_option($fieldname, $opt_array, $selected, $groupby = '')
{
    global $errorfields, $lang;

    $output = '';
    $output .= "<tr><th><label for=\"$fieldname\">" . $lang['cfg-' . $fieldname] . "</label></th>";
    $output .= "<td><select name=\"$fieldname\">";

    if ($groupby != '') {
        $cur_group = $opt_array[0][$groupby];
        $output .= "<optgroup label=\"$cur_group\">";
    }

    foreach ($opt_array as $option) {
        if ($groupby != '' && $cur_group != $option[$groupby]) {
            $cur_group = $option[$groupby];
            $output .= "</optgroup><optgroup label=\"$cur_group\">";
        }
        $output .= "<option ";
        $output .= $option['value'] == $selected ? 'selected="selected" ' : '';
        $output .= "value=\"{$option['value']}\">{$option['label']}</option>";
    }

    $output .= '</optgroup>';
    $output .= isset($errorfields[$fieldname]) ? '<span class="error">* ' . $errorfields[$fieldname] . '</span>' : '';
    $output .= '</td></tr>';

    return $output;
}

This article was last updated 21st May 2025 09:35 Europe/London time based on the source file dated 1st May 2025 09:15 Europe/London time.