arrayiterator

Php, Spl, ArrayIterator

由 醉酒当歌 提交于 2019-12-11 06:38:14
问题 I am trying to understand piece of code: $array = array('koala', 'kangaroo', 'wombat', 'wallaby', 'emu', 'kiwi', 'kookaburra', 'platypus'); $object = new ArrayIterator($array); foreach($object as $key=>$value) { if($object->offSetGet($key) === 'kiwi') { $object->offSetUnset($key); } echo $key.' - '.$value."<br />"; } What i was trying to understand is why offSetUnset is taking the pointer to the second element at the array and not to the first one, My theory is the following sequence of

jquery setTimeout inside each

由 我的未来我决定 提交于 2019-12-10 12:19:08
问题 i have some code similar to this, that moves inside some images... it works but it doesn't seem to respect timer var i = 1; var indexArray = array(1,2,3); var timerx = new Array(); $( indexArray ).each(function( indexArraykey ) { function internalCallback ( i, indexArraykey ) { val = indexArray[indexArraykey]; console.log("test " + i + val); }); timerx[i] = setTimeout( internalCallback( i, indexArraykey ), i * 500000 ); i++; }); 回答1: A few points : i has the value of end of loop by the time

Difference between ArrayIterator, ArrayObject and Array in PHP

由 社会主义新天地 提交于 2019-12-03 05:38:20
问题 Can somebody explain clearly the fundamental differences between ArrayIterator , ArrayObject and Array in PHP in terms of functionality and operation? Thanks! 回答1: Array is a native php type. You can create one using the php language construct array() , or as of php 5.4 onwards [] ArrayObject is an object that work exactly like arrays. These can be created using new keyword ArrayIterator is like ArrayObject but it can iterate on itself. Also created using new Comparing Array vs ( ArrayObject

PHP foreach skip iterate in an array

由 被刻印的时光 ゝ 提交于 2019-12-02 19:37:32
问题 I want to skip iterate in a php foreach anytime when I receaive "Undifined index". Here is my code so far: <?php $albums = $facebook->api("/me/albums"); $i=0; foreach ($albums['data'] as $album) { if (is_null($album['cover_photo'])) continue; if($i==8) break; $album_id = $album['id']; $album_cover = $album['cover_photo']; $album_name = $album['name']; $album_count = $album['count']; $covers = $facebook->api("/" . $album_cover . ""); $source = $covers['source']; ?> If I don't have the if is

ORM Query results: Arrays vs Result handle wrapped in Iterator interface

由 坚强是说给别人听的谎言 提交于 2019-12-02 05:58:49
问题 Okay, here's one for the pro's: For a couple of years now, i've been working on my own PHP ORM/ActiveRecord implementation that i named Pork.dbObject. It's loosly based on the 'make your own site with rails in 5 minutes' movie we all saw a couple of years ago. You can do things like: $clients = dbObject::Search("Client", array("ID > 500")); or $client = new Client(218); // fetch row with id 218 from client table or $projects = $client->Find('Project'); This will fetch one or more rows from

ORM Query results: Arrays vs Result handle wrapped in Iterator interface

由 让人想犯罪 __ 提交于 2019-12-02 02:29:06
Okay, here's one for the pro's: For a couple of years now, i've been working on my own PHP ORM/ActiveRecord implementation that i named Pork.dbObject. It's loosly based on the 'make your own site with rails in 5 minutes' movie we all saw a couple of years ago. You can do things like: $clients = dbObject::Search("Client", array("ID > 500")); or $client = new Client(218); // fetch row with id 218 from client table or $projects = $client->Find('Project'); This will fetch one or more rows from the database, wrap them in a dbObject and return them in one array, or return false of there are no
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