Jump to content

preg_replace question


b_hole

Recommended Posts

I'm trying to find a way to replace any [b][mylist][/mylist][/b] with [b]<ul></ul>[/b]. That not a problem. I use preg_replace like this:
[code]$_str=preg_replace("#[mylist](.*?)[/mylist]#", "<ul>\\1</ul>", $_str);[/code]

But I can't find a way to replace all the sub-strings [b]</p>\r<p>[/b] inside the replaced [mylist] with [b]</li>\r<li>[/b]. Can I do it with one preg_replace command?
Link to comment
Share on other sites

Change your code with this:
[code]$_str=preg_replace("#\[mylist\](.*?)\[/mylist\]#is", "<ul>\\1</ul>", $_str);[/code]
Now the PCRE engine will treat any instace of [ or ] as-is as. [ and ] have a special meaning and so you need to tell the PCRE engine to treat those characters as-is. Also note that that added teo characters after the last # in your regualar expressins. This tells the PCRE engine to ingore newline characters and to be case-insensitive too.
Link to comment
Share on other sites

[!--quoteo(post=373763:date=May 14 2006, 11:13 AM:name=wildteen88)--][div class=\'quotetop\']QUOTE(wildteen88 @ May 14 2006, 11:13 AM) [snapback]373763[/snapback][/div][div class=\'quotemain\'][!--quotec--]
Change your code with this:
[code]$_str=preg_replace("#\[mylist\](.*?)\[/mylist\]#is", "<ul>\\1</ul>", $_str);[/code]
Now the PCRE engine will treat any instace of [ or ] as-is as. [ and ] have a special meaning and so you need to tell the PCRE engine to treat those characters as-is. Also note that that added teo characters after the last # in your regualar expressins. This tells the PCRE engine to ingore newline characters and to be case-insensitive too.
[/quote]
My mistake, of course I'm using \ before [. Anyway, case-sensitivity is not important at the moment, and I definitely don't want to ignore new-lines.


Is it possible to change [b]</p>\r<p>[/b] inside every [mylist]?
Link to comment
Share on other sites

I guess I'm lost here. Everything I tried didn't worked, and I can't find anything in www.php.net.
I have wildteen88's code, but I can't think of a way to replace a specific text inside the ul (</p>\r<p>), and still leave everything eles as-is.

Can someone point me to the solution?
Link to comment
Share on other sites

[code]
$_str = <<<LLL
[mylist]
<p>point 1</p>
<p>point 2</p>
[/mylist]
skldslkdsd
[mylist]
<p>list1</p>
<p>list2</p>
[/mylist]
LLL;
function make_list($matches)
{
    $_str = '<ul>'.preg_replace('#<p>(.*?)</p>#is', "<li>\\1</li>", $matches[1]).'</ul>';
    return $_str;

}
$_str=preg_replace_callback("#\[mylist\](.*?)\[/mylist\]#is", 'make_list', $_str);
print $_str;
[/code]
[a href=\"http://php.net/preg_replace_callback\" target=\"_blank\"]preg_replace_callback()[/a]
Link to comment
Share on other sites

That's nice, thanks shoz [img src=\"style_emoticons/[#EMO_DIR#]/smile.gif\" style=\"vertical-align:middle\" emoid=\":smile:\" border=\"0\" alt=\"smile.gif\" /]
Do you have an idea how to deal situations when there is no </p><p> at the last li?

What I'm doing is adding <p> at the beginning of the text and </p> at the end of the text, replacing every new line with </p><p> and then replacing [mylist] with <ul>, just like you suggested. The problem is that I can't tell for sure that there is new line at the end of the last li.
This is OK:
[code]some text...
[mylist]line one
line two
line three
[/mylist][/code]
But this isn't:
[code]some text...
[mylist]line one
line two
line three[/mylist][/code]


Thanks alot!
Link to comment
Share on other sites

[quote]
What I'm doing is adding <p> at the beginning of the text and </p> at the end of the text, replacing every new line with </p><p> and then replacing [mylist] with <ul>, just like you suggested.
[/quote]
I assume you're only referring to my suggestion about the [mylist] to <ul><li> replacement.

If you're saying you'd like text on every line between [mylist][/mylist] to be between <p></p> then you can do the following.
[code]
$str = <<<LLL
[mylist]line one
line two
line three[/mylist]
dskjdksds
[mylist]
dksldksd
sdkslkd
[/mylist]
LLL;
function make_list($matches)
{
    return '[mylist]'.preg_replace('#^(.+)$#im', '<p>\\1</p>', $matches[1]).'[/mylist]';
}
$str=preg_replace_callback("#\[mylist\](.*?)\[/mylist\]#is", 'make_list', $str);
print $str;
[/code]
However, if you're ultimately going to be converting everything to <ul><li></ul>, you can do it all at once by changing [mylist] to <ul> and <p></p> to <li></li> in the code found in the "make_list" function.
Link to comment
Share on other sites

This thread is more than a year old. Please don't revive it unless you have something important to add.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.