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The RecursiveIteratorIterator class
- OuterIterator
The OuterIterator interface Introduction ¶ Classes...
- RegexIterator
The RegexIterator class In case the difference between modes...
- GlobIterator
The GlobIterator class
- MultipleIterator
The MultipleIterator class Table of Contents ¶...
- RecursiveIterator
The RecursiveIterator interface Introduction ¶ Classes...
- RecursiveTreeIterator
The RecursiveTreeIterator class
- CallbackFilterIterator
The CallbackFilterIterator class
- FilterIterator
The FilterIterator class Introduction ¶ This abstract...
- OuterIterator
The RecursiveIterator interface Introduction ¶ Classes implementing RecursiveIterator can be used to iterate over iterators recursively.
- Recursive and Non-Recursive Iterators
- RecursiveIteratorIterator
- IteratorIterator
- Summary
PHP has non-"recursive" iterators, such as ArrayIterator and FilesystemIterator. There are also "recursive" iterators such as the RecursiveArrayIterator and RecursiveDirectoryIterator. The latter have methods enabling them to be drilled down into, the former do not. When instances of these iterators are looped over on their own, even the recursive ...
This is where the RecursiveIteratorIterator comes in to play. It has the knowledge of how to call the "recursible" iterators in such a way as to drill down into the structure in a normal, flat, loop. It puts the recursive behaviour into action. It essentially does the work of stepping over each of the values in the iterator, looking to see if there...
The job of the IteratorIterator is to take any Traversable object, and wrap it such that it satisfies the Iteratorinterface. A use for this is to then be able to apply iterator-specific behaviour on the non-iterator object. To give a practical example, the DatePeriod class is Traversable but not an Iterator. As such, we can loop over its values wit...
RecursiveIteraratorIterator is for iterating over a RecursiveIterator("recursible" iterator), exploiting the recursive behaviour that is available. IteratorIterator is for applying Iterator behaviour to non-iterator, Traversableobjects.
Jun 5, 2024 · recursion has a bad reputation amongst programmers; it's convoluted and complicated and difficult to... Tagged with php, webdev.
Table of Contents RecursiveIteratorIterator::beginChildren — Begin children RecursiveIteratorIterator::beginIteration — Begin Iteration RecursiveIteratorIterator::callGetChildren — Get children RecursiveIteratorIterator::callHasChildren — Has children RecursiveIteratorIterator::__construct — Construct a RecursiveIteratorIterator RecursiveIteratorIterator::current — Access the ...
Parameters iterator The iterator being constructed from. Either a RecursiveIterator or IteratorAggregate. mode Optional mode. Possible values are RecursiveIteratorIterator::LEAVES_ONLY - The default. Lists only leaves in iteration. RecursiveIteratorIterator::SELF_FIRST - Lists leaves and parents in iteration with parents coming first. RecursiveIteratorIterator::CHILD_FIRST - Lists leaves and ...
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Does PHP have a recursive iterator?
What is recursiveiterator?
Can a class implementing recursiveiterator be used to iterate over iterators?
How do recursive iterators work?
The RecursiveIteratorIterator class Introduction (PHP 5, PHP 7) Can be used to iterate through recursive iterators. Class synopsis RecursiveIteratorIterator implements OuterIterator { /* Constants */ const int LEAVES_ONLY = 0 ; const int SELF_FIRST = 1 ; const int CHILD_FIRST = 2 ; const int CATCH_GET_CHILD = 16 ; /* Methods */ public beginChildren ( ) : void public beginIteration ( ) : void ...
