Interface for an iterator that can go in both directions and can modify
the container. The methods that can normally only be called after
$next() will also work after $previous().
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Inherited from I.MutateIterator:
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$setSupported()
bool @public | Returns TRUE when $set() is supported.
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$set(item)
status @public | Replaces the item that was previously obtained with $next()
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$removeSupported()
bool @public | Returns TRUE when $remove() is supported.
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$remove()
status @public | Removes the item that was previously obtained with $next()
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$addSupported()
bool @public | Returns TRUE when $add() is supported.
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$add(item)
status @public | Adds item after the one that was previously obtained with $next() or
$previous().
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$insertSupported()
bool @public | Returns TRUE when $insert() is supported.
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$insert(item)
status @public | Inserts item before the one that was previously obtained with $next()
or $previous()
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Inherited from I.Iterator:
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$hasNext()
bool @public | Returns TRUE when there is another item to fetch.
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$next()
Titem @public | Returns the next item and advances.
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$peekSupported()
bool @public | Returns TRUE when peek() is supported.
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$peek()
Titem @public | Returns the next item without advancing.
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Included from I.BidiIterator:
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$hasPrevious()
bool @public | Returns TRUE when there is an item to fetch with previous().
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$previous()
Titem @public | Returns the previous item and advances backwards.
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$peekPreviousSupported()
bool @public | Returns TRUE when peekPrevious() is supported.
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$peekPrevious()
Titem @public | Returns the previous item without advancing.
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