master/help_8php_source.html

 <?php
 $help = elgg_extract('help', $vars, '');
 if (!$help) {
     return;
 }

 echo elgg_format_element('div', [
     'class' => 'elgg-field-help elgg-text-help',
 ], $help);
$help
$help
Form input help text view.
Definition: help.php:8

elgg_extract
elgg_extract($key, $array, $default=null, bool $strict=true)
Checks for $array[$key] and returns its value if it exists, else returns $default.
Definition: elgglib.php:254

$vars
$vars
Definition: theme.php:5

elgg_format_element
elgg_format_element(string $tag_name, array $attributes=[], string $text= '', array $options=[])
Format an HTML element.
Definition: output.php:145