?
Solved

PHP Regex for mixed quantities of consecutive characters

Posted on 2010-11-16
3
Medium Priority
?
456 Views
Last Modified: 2012-08-14
Hi all,

I want to match varying quantities of consecutive characters in a string.  
For example, in $string I want to replace with nothing (i.e. ""):
any number of instances (consecutive or not) of !@#
and replace instances of 2 or more consecutive -
and replace instances of 3 or more consecutive +

Example:
$string='d+++og! + ca#t@ - how about the m--ule';
 I'd like to do something like:
echo preg_replace("/[!@#(\-{2,})(\+{3,})]/","",$string);
to get "dog + cat - how about the mule"

Every variant of moving/removing the parentheses and brackets that I've tried replaces either all instances of - and + including where they only occur once, or replaces no instances at all.

Thank you in advance.


0
Comment
Question by:foxymoron7
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 35

Accepted Solution

by:
Terry Woods earned 2000 total points
ID: 34151487
echo preg_replace("/[!@#]|-{2,}|\+{3,}/","",$string);
0
 
LVL 35

Expert Comment

by:Terry Woods
ID: 34151494
(The pipe character acts as a logical OR)
0
 
LVL 1

Author Closing Comment

by:foxymoron7
ID: 34151596
Thank you TerryAtOpus!  I'm glad I forgot to mention that I had also tried using the | with no success.  Obviously, I screwed something up when I tried it before.  You are a champion.
0

Featured Post

WordPress Tutorial 2: Terminology

An important part of learning any new piece of software is understanding the terminology it uses. Thankfully WordPress uses fairly simple names for everything that make it easy to start using the software.

Question has a verified solution.

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

This article discusses four methods for overlaying images in a container on a web page
We are witnesses that everyone is saying that our children shouldn't "play" with a technology because it is dangerous. This article is going to prove that they are wrong.
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…
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

762 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