PHP design pattern Iterator pattern

: This article mainly introduces the PHP design pattern Iterator pattern. if you are interested in the PHP Tutorial, refer to it. The iterator mode traverses the internal elements of an aggregate object without having to know the internal implementation. Compared with the traditional programming mode, the iterator mode can hide the operations required to traverse elements.

AllHacl. php

 Query ('select ID from ha_cl '); $ this-> ids = $ result-> fetch_all (MYSQLI_ASSOC );}
/**
* Returns the current element.
*/Functioncurrent () {$ id = $ this-> ids [$ this-> index] ['id']; return Factory: getHacl ($ ID );}
/**
* Move forward to the next element
*/Functionnext () {$ this-> index ++;}/*** returns the first element of the iterator */functionrewind () {$ this-> index = 0;}/*** query whether data exists in the current position */function valid () {return $ this-> index-count ($ this-> ids );}
/**
* Returns the key of the current element.
*/Functionkey () {return $ this-> index ;}}

Index. php

$hacls = new \Baobab\AllHacl();foreach($haclsas$hacl){    var_dump($hacl->haclname);}

For more information about Hacl, see data object ing mode. Http://www.cnblogs.com/tianxintian22/p/5232016.html

The above introduces the PHP design pattern Iterator pattern, including some content, and hope to be helpful to friends who are interested in PHP tutorials.