Solved

Array Pointer

Posted on 2004-09-18
2
182 Views
Last Modified: 2009-07-29
//from php.net
Remember that print_r() will move the array pointer to the end. Use reset() to bring it back to beginning.

I was wondering what it means by the array pointer being at the end?  why is this bad?


Thanks!,

Chilled
0
Comment
Question by:chilled2003
2 Comments
 
LVL 36

Accepted Solution

by:
Zyloch earned 50 total points
ID: 12090812
Hi chilled2003,

Sometimes, you'll have to loop through an array and need the array pointer at the beginning. A classic example is when you're using next() or current(), for example, take this:

$testArray = array("dog","cat","eagle");
echo current($testArray);   //echos "dog"
echo next($testArray);      //echos "eagle"
reset($testArray);
echo current($testArray);   //echos "dog" again


You get the gist.

Regards,
Zyloch
0
 

Author Comment

by:chilled2003
ID: 12090821
I see now.  Thanks! :D
0

Featured Post

Enterprise Mobility and BYOD For Dummies

Like “For Dummies” books, you can read this in whatever order you choose and learn about mobility and BYOD; and how to put a competitive mobile infrastructure in place. Developed for SMBs and large enterprises alike, you will find helpful use cases, planning, and implementation.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction HTML checkboxes provide the perfect way for a web developer to receive client input when the client's options might be none, one or many.  But the PHP code for processing the checkboxes can be confusing at first.  What if a checkbox is…
3 proven steps to speed up Magento powered sites. The article focus is on optimizing time to first byte (TTFB), full page caching and configuring server for optimal performance.
Learn how to match and substitute tagged data using PHP regular expressions. Demonstrated on Windows 7, but also applies to other operating systems. Demonstrated technique applies to PHP (all versions) and Firefox, but very similar techniques will w…
This tutorial will teach you the core code needed to finalize the addition of a watermark to your image. The viewer will use a small PHP class to learn and create a watermark.

810 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question