[RESOLVED] ereg_replace help please

RobRocker

Hello fellow programmers,

I need to replace any text between  comment codes with some other text. I would appreciate any help.

bradgrafelman

Despite the thread's title, I'll show you a pattern to use with [man]preg_replace/man, since the preg functions are better/faster than the ereg functions:

$pattern = '/<!--.*?-->/';

Quite simple... says match any character (hence the period) zero or more times (hence the asterisk). It'll stop when it encounters a '-->' sequence because it's "non-greedy" (hence the question mark).

EDIT: Just a note... the  sequences will also be "replaced"... so if you want to keep these, make sure you include them in the second arguement of the preg_replace() function.

RobRocker

Thanks so much! I actually wanted the  to be replaced. SO perfect! 😃

RobRocker

Ok, I spoke to quickly...

If I wanted to make it  and  would I do

$pattern = '/<!--Main-->.*?<!--MainEnd-->/';

bradgrafelman

Looks fine to me... did you try this and it didn't work?

RobRocker

No, It didnt work.

It left

Weedpacket

I'd've thought that would have removed them; let's see how you're using it - there may be something up about that.

RobRocker

Ok, So I have a PHP code that grabs some HTML from a database. I have also built a way to edit it and I want to have a "Preview" button on the editor. So I want to have the comments around the php code that gets the html so when I grab the page with file_get_contents the HTML is surrounded by the comments and can be deleted and made room for the HTML that I want to preview.
Grab from database

<!--Main-->
		<?php 
		if($snippets == 00){
		include('Connections/sitemap.php');
		}else{
		echo $row_pagegrab['content']; 
		}
		?>
<!--MainEnd-->

Grab new code

$pattern = '/<!--Main-->.*?<!--MainEnd-->/'; 
$source = file_get_contents("http://www.".$row_getUser['siteURL']."/".$row_ContentHTML['incname'].".php", 2000000000);
$content = preg_replace($pattern, $postedValue, $source);
echo $content;

Weedpacket

Ah, so it spans multiple rows. Without saying otherwise, . means any character except a newline (looky here). You need an s after the final /.

bradgrafelman

Woops, my mistake... clean forgot about the 'dot-all' modifier! :o