master/output_2text_8php_source.html

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

 echo htmlspecialchars("{$value}", ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8', false);
$vars
$vars['class']
Elgg text input Displays a text input field.
Definition: text.php:9

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

$value
$value
Elgg text output Displays some text that was input using a standard text field.
Definition: text.php:9