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README iterator
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namespace DesignPatterns\Iterator;
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/**
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* iterator pattern
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*
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* Purpose:
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* to make an object iterable
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*
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* Examples:
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* - to process a file line by line by just running over all lines (which have an object representation) for a file
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* (which of course is an object, too)
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*
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* Note:
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* Standard PHP Library (SPL) defines an interface Iterator which is best suited for this!
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* Often you would want to implement the Countable interface too, to allow count($object) on your iterable object
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* class File
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*
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* THIS EXAMPLE ALSO APPLIES THE COMPOSITE PATTERN
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*
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*/
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class File
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{
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13
Iterator/README.md
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13
Iterator/README.md
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# Iterator
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## Purpose
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To make an object iterable and to make it appear like a collection of objects.
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## Examples
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* to process a file line by line by just running over all lines (which have an object representation) for a file (which of course is an object, too)
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## Note
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Standard PHP Library (SPL) defines an interface Iterator which is best suited for this! Often you would want to implement the Countable interface too, to allow `count($object)` on your iterable object
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