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1. www.php.net › manual › enPHP: IteratorIterator::key - Manual

   www.php.net › manual › en

   Get the key of the current element IteratorIterator::key (PHP 5 >= 5.1.0, PHP 7, PHP 8) IteratorIterator::key — Get the key of the current element

2. www.creationdev.net › docs › phpIteratorIterator::key [Ref:methode-iteratoriterator::key.php]

   www.creationdev.net › docs › php

   IteratorIterator::key 26 déc. 2018 18 fois (PHP 5 >= 5.1.0, PHP 7, PHP 8) IteratorIterator::key — Lit la clé de l'élément courant

3. durak.org › php-8 › classThe IteratorIterator class - PHP 8.4.0 Manual / Documentation

   durak.org › php-8 › class

   Table of Contents IteratorIterator::__construct — Create an iterator from anything that is traversable IteratorIterator::current — Get the current value IteratorIterator::getInnerIterator — Get the inner iterator IteratorIterator::key — Get the key of the current element IteratorIterator::next — Forward to the next element IteratorIterator::rewind — Rewind to the first element ...

4. phpsources.net › classLa classe IteratorIterator - phpsources.net

   phpsources.net › class

   Sommaire IteratorIterator::__construct — Crée un itérateur à partir d'un objet traversable IteratorIterator::current — Lit la valeur courante IteratorIterator::getInnerIterator — Retourne l'itérateur interne IteratorIterator::key — Lit la clé de l'élément courant IteratorIterator::next — Avance au prochain élément

5. www.basicexamples.com › php › iteratoriterator-keyBasic example of PHP function IteratorIterator::key ()

   www.basicexamples.com › php › iteratoriterator-key

   Simple usage example of `IteratorIterator::key ()`. The `IteratorIterator::key` function is a built-in PHP function that is used to retrieve the key of the current element in an iterator. It allows you to easily access the key associated with the current value while iterating through a collection or an iterator object.

6. stackoverflow.com › questions › 1366925How does the PHP IteratorIterator class work? - Stack Overflow

   stackoverflow.com › questions › 1366925

   Sep 2, 2009 · 5 Try as I might I cannot get my head around what the IteratorIterator class actually does. I understand that classes can implement Traversable so the engine knows it can loop using foreach and I realise that IteratorIterator is supposed to convert anything that is Traversable into an Iterator but I cannot for the life of me understand how.

7. People also ask

   Is IteratorIterator a nested foreach?

   • In other words, I believe IteratorIterator is the same as having nested foreach loops, without having to know all of the elements of each object. In other words, a nested foreach using object oriented objects... there's a redundant statement. :-)

   How does the PHP IteratorIterator class work? - Stack Overflow

   stackoverflow.com/questions/1366925/how-does-the-php-iteratoriterator-class-work

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   Can a recursive iterator be used in a PHP script?

   • "This is an internal engine interface which cannot be implemented in PHP scripts. Either IteratorAggregate or Iterator must be used instead." The site has some RecursiveIteratorIterator examples that might be handy but, if i get it right, IteratorIterator is from the scripting point of view pretty useless (when used to foreach at least).

   How does the PHP IteratorIterator class work? - Stack Overflow

   stackoverflow.com/questions/1366925/how-does-the-php-iteratoriterator-class-work

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   Do I need to implement IteratorAggregate in PHP?

   • "Internal (built-in) classes that implement this interface can be used in a foreach construct and do not need to implement IteratorAggregate or Iterator." "This is an internal engine interface which cannot be implemented in PHP scripts. Either IteratorAggregate or Iterator must be used instead."

   How does the PHP IteratorIterator class work? - Stack Overflow

   stackoverflow.com/questions/1366925/how-does-the-php-iteratoriterator-class-work

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   What if a class does not implement an iterator?

   • It is important to understand that most classes that do not implement Iterators have reasons as most likely they do not allow the full Iterator feature set. If so, techniques should be provided to prevent misuse, otherwise expect exceptions or fatal errors. public getInnerIterator (): ?

   PHP: IteratorIterator - Manual

   www.php.net/manual/en/class.iteratoriterator.php

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8. www.php.net › manual › enPHP: IteratorIterator - Manual

   www.php.net › manual › en

   Table of Contents ¶ IteratorIterator::__construct — Create an iterator from anything that is traversable IteratorIterator::current — Get the current value IteratorIterator::getInnerIterator — Get the inner iterator IteratorIterator::key — Get the key of the current element IteratorIterator::next — Forward to the next element IteratorIterator::rewind — Rewind to the first element ...