master/ajax__loader_8php_source.html

 <?php
 $attributes = [];

 if (isset($vars['id'])) {
     $attributes['id'] = elgg_extract('id', $vars);
 }

 $attributes['class'] = elgg_extract_class($vars, 'elgg-ajax-loader');

 if (elgg_extract('hidden', $vars, true)) {
     $attributes['class'][] = 'hidden';
 }

 echo elgg_format_element('div', $attributes);
elgg_extract
elgg_extract($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

elgg_extract_class
elgg_extract_class(array $array, array|string $existing=[], string $extract_key= 'class')
Extract class names from an array, optionally merging into a preexisting set.
Definition: elgglib.php:277

$attributes
$attributes
Elgg AJAX loader.
Definition: ajax_loader.php:10