PHP regular expressions by custom HTML comments

Question

Im working on php-html-js templating shell, and i want to callback class, via ajax, as part of template html.

The view of html is something like that:

<center>this is main part</center>
<button class="btns"> class buttons </button>
<div> also main </div>
<!--[part:AJAX]-->
<div> BUT This part at first should be removed with comments, and all inside <!--[part:ANYVAR]--> till
the same comment: </div>
<!--[part:AJAX]-->

But after i need to do an oposite thing : remove all except for inside

Ps thank's for you attention :)

can you rephrase the question or give some more details so that question is much clear — swapnilsarwe
– swapnilsarwe, Commented Jul 27, 2012 at 12:14
something like INPUT: THIS IS  OUTPUT: value of part:AJAX — swapnilsarwe
– swapnilsarwe, Commented Jul 27, 2012 at 12:15
Hi, thanks for interesting! My question is how to preg_match data only inside my variant of comments, also i need to make an oposite (another time) - remove all inside and self comments (as i show). I was trying to make it by substr, but it not so powerful as regexp.. — Jacob88
– Jacob88, Commented Jul 27, 2012 at 12:18
Please refrain from parsing HTML with RegEx as it will drive you į̷̷͚̤̤̖̱̦͍͗̒̈̅̄̎n̨͖͓̹͍͎͔͈̝̲͐ͪ͛̃̄͛ṣ̷̵̞̦ͤ̅̉̋ͪ͑͛ͥ͜a̷̘͖̮͔͎͛̇̏̒͆̆͘n͇͔̤̼͙̩͖̭ͤ͋̉͌͟eͥ͒͆ͧͨ̽͞҉̹͍̳̻͢. Use an HTML parser instead. — Madara's Ghost
– Madara's Ghost, Commented Jul 27, 2012 at 12:46

Tchoupi · Accepted Answer · 2012-07-27 12:40:04Z

1

This regular expression will find the comments and what's inside:

$pattern = "/(<!--\[part:AJAX\]-->.*<!--\[part:AJAX\]-->)/ms";
preg_match($pattern, $html, $matches);
echo $matches[1];

To remove between comments, change your pattern to:

$pattern = "/(<!--\[part:AJAX\]-->(.*)<!--\[part:AJAX\]-->)/ms";

Then

echo str_replace($matches[2], "", $html);

edited Jul 27, 2012 at 12:40

answered Jul 27, 2012 at 12:32

Tchoupi

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1 Comment

Jacob88 Over a year ago

Cool! Would be the great if you show me how to remove all between comments.

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