Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

string replace

Posted on 2009-05-09
2
Medium Priority
?
297 Views
Last Modified: 2012-05-06
Hi,

I would like to replace all characters which are not letters nor numbers by a dash.
e.g. ?[ Hello ' !@ There :0 a !!
should be hello-there-0-a
(notice characters at beginning and end which arent numbers nor letters are ignored)
0
Comment
Question by:matthew016
2 Comments
 
LVL 39

Assisted Solution

by:Roger Baklund
Roger Baklund earned 284 total points
ID: 24343903
You can do it in multiple steps:
$str = "?[ Hello ' !@ There :0 a !!";
$str = preg_replace('/[^a-z0-9]+/i','-',$str);  # grops of invalid characters to single dash
$str = preg_replace('/-?([a-z0-9-]+[a-z0-9])-?/i','\1',$str); # remove dash at start and end
$str = strtolower($str);  # convert to lower case
echo $str; # hello-there-0-a

Open in new window

0
 
LVL 49

Accepted Solution

by:
Roonaan earned 320 total points
ID: 24348886
Instead of the second preg_replace, you can use trim with preg_replace:

$newStr = strtolower(trim(preg_replace('/[^a-z0-9]+/i', '-', $str),'-'));

Regards

Arnoud
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Build an array called $myWeek which will hold the array elements Today, Yesterday and then builds up the rest of the week by the name of the day going back 1 week.   (CODE) (CODE) Then you just need to pass your date to the function. If i…
It’s a season to be thankful, and we’re thankful for users like you who engage on site, solve technology problems, and network with others in the industry. What tech are we most thankful for? Keep reading.
The viewer will learn how to count occurrences of each item in an array.
The viewer will learn how to create and use a small PHP class to apply a watermark to an image. This video shows the viewer the setup for the PHP watermark as well as important coding language. Continue to Part 2 to learn the core code used in creat…
Suggested Courses

877 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