function template_preprocess_select
template_preprocess_select(&$variables)
Prepares variables for select element templates.
Default template: select.html.twig.
It is possible to group options together; to do this, change the format of $options to an associative array in which the keys are group labels, and the values are associative arrays in the normal $options format.
Parameters
$variables: An associative array containing:
- element: An associative array containing the properties of the element. Properties used: #title, #value, #options, #description, #extra, #multiple, #required, #name, #attributes, #size.
File
- core/includes/form.inc, line 30
- Functions for form and batch generation and processing.
Code
function template_preprocess_select(&$variables) { $element = $variables['element']; Element::setAttributes($element, array('id', 'name', 'size')); RenderElement::setAttributes($element, array('form-select')); $variables['attributes'] = $element['#attributes']; $variables['options'] = form_select_options($element); }
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https://api.drupal.org/api/drupal/core!includes!form.inc/function/template_preprocess_select/8.1.x