form.php

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<?php
$defaults = [
    'method' => 'post',
    'disable_security' => false,
];
 
$vars = array_merge($defaults, $vars);
 
$ignore_empty_body = (bool) elgg_extract('ignore_empty_body', $vars, true);
unset($vars['ignore_empty_body']);
 
$form_body = elgg_extract('body', $vars);
unset($vars['body']);
 
if (!$ignore_empty_body && empty($form_body)) {
    return;
}
 
$vars['class'] = elgg_extract_class($vars, 'elgg-form');
if (elgg_extract('prevent_double_submit', $vars, true)) {
    elgg_import_esm('input/form-double-submit');
    $vars['class'][] = 'elgg-form-prevent-double-submit';
}
 
$vars['action'] = elgg_normalize_url((string) $vars['action']);
$vars['method'] = strtolower((string) $vars['method']);
 
// Generate a security header
$body = '';
if (!$vars['disable_security']) {
    $body .= elgg_view('input/securitytoken');
}
 
// add automatic sticky form support
if ((bool) elgg_extract('sticky_enabled', $vars, false)) {
    $body .= elgg_view_field([
        '#type' => 'hidden',
        'name' => '__elgg_sticky_form_name',
        'value' => (string) elgg_extract('sticky_form_name', $vars),
    ]);
 
    $ignored_fields = (array) elgg_extract('sticky_ignored_fields', $vars);
    if (!empty($ignored_fields)) {
        $body .= elgg_view_field([
            '#type' => 'hidden',
            'name' => '__elgg_sticky_ignored_fields',
            'value' => implode(',', $ignored_fields),
        ]);
    }
}
 
$body .= $form_body;
 
unset($vars['disable_security']);
unset($vars['action_name']);
 
echo elgg_format_element('form', $vars, $body);