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✎ Editing: StringHash.php ← Back

<?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

{

/**

* @type array

protected $accessed = array();

/**

* Retrieves a value, and logs the access.

* @param mixed $index

* @return mixed

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

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