?
Solved

How to I replace a block of text while specifying start and end tags and a replacement string?

Posted on 2008-10-12
5
Medium Priority
?
261 Views
Last Modified: 2013-12-13
I need to replace a block of text e.g.

abcdefg
<start-tag>

this is some
text which
I want to remove

<end-tag
hijklmnop

With some some other text e.g.

new text

So the result should be...

abcdefg
new text
hijklmnop

I would expect the function to work like this

$result = str_replace_func($my_text, "<start-tag>", "<end-tag">, "new text");

0
Comment
Question by:mindwarpltd
  • 3
  • 2
5 Comments
 
LVL 9

Expert Comment

by:Sander Stad
ID: 22700778
The str_replace function does not look between strings but searches for strings that are given. You could use the code I added.
What is does is it gets a variable with the text it has to search. Than a pattern is made, you could make this dynamic with variables in a function. Than the content what will replace the old.
At last the preg_replace function calls all teh three variables and replaces the text.

$p = '<style type="text/css"> css css css</style>'; 
$pattern = "/<style\b[^>]*>(.*?)<\/style>/ims"; 
$content = "test"; 
echo preg_replace($pattern, $content, $p); 

Open in new window

0
 

Author Comment

by:mindwarpltd
ID: 22700817
I'm a little confused by the pattern. Can you show me what my pattern would look like?
0
 
LVL 9

Accepted Solution

by:
Sander Stad earned 2000 total points
ID: 22700883
It would look like this:
 

$p = '<start-tag>this is some text i want to remove</end-tag>'; 
$pattern = "/<sart-tag\b[^>]*>(.*?)<\/end-tag>/ims"; 
$content = "new text"; 
echo preg_replace($pattern, $content, $p); 

Open in new window

0
 

Author Comment

by:mindwarpltd
ID: 22701089
Ooops...

I had to change the start and end tags...
I have...

$pattern = "/<!-- Start Foot Ad --\b[^>]*>(.*?)<!-- End Foot Ad -->/ims";


<!-- Start Foot Ad -->
whatever
<!-- End Foot Ad -->

Help
0
 

Author Comment

by:mindwarpltd
ID: 22701729
I've worked out the answer.

$pattern = "/<!--StartFootAd-->(.*?)<!--EndFootAd-->/ims";
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

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

Things That Drive Us Nuts Have you noticed the use of the reCaptcha feature at EE and other web sites?  It wants you to read and retype something that looks like this. Insanity!  It's not EE's fault - that's just the way reCaptcha works.  But it i…
The title says it all. Writing any type of PHP Application or API code that provides high throughput, while under a heavy load, seems to be an arcane art form (Black Magic). This article aims to provide some general guidelines for producing this typ…
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 count occurrences of each item in an array.
Suggested Courses

621 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