friendica-github/library/HTMLPurifier/StringHash.php
2010-09-08 20:14:17 -07:00

39 lines
975 B
PHP

<?php
/**
* This is in almost every respect equivalent to an array except
* that it keeps track of which keys were accessed.
*
* @warning For the sake of backwards compatibility with early versions
* of PHP 5, you must not use the $hash[$key] syntax; if you do
* our version of offsetGet is never called.
*/
class HTMLPurifier_StringHash extends ArrayObject
{
protected $accessed = array();
/**
* Retrieves a value, and logs the access.
*/
public function offsetGet($index) {
$this->accessed[$index] = true;
return parent::offsetGet($index);
}
/**
* Returns a lookup array of all array indexes that have been accessed.
* @return Array in form array($index => true).
*/
public function getAccessed() {
return $this->accessed;
}
/**
* Resets the access array.
*/
public function resetAccessed() {
$this->accessed = array();
}
}
// vim: et sw=4 sts=4