Regular expression help

Snoopie

Need some help with this.. It doesn't work.. I'm also a beginner with regular expressions

[code=php]

$text = "I <3 u \n Visit <a href=\"http://www.mydomain.com\">My Site</a>";
$text = htmlspecialchars($text, ENT_NOQUOTES);
$text = nl2br($text);
$text = preg_replace("/(<a) ([^>]*) (&gt😉 (<\/a&gt😉/", "<a\2>\4</a>", $text);
// Outputs: "I <3 u Visit <a href="http://www.mydomain.com">My Site</a>
// What I want to output: "I <3 u Visit <a href="http://www.mydomain.com">My Site</a>
[/code]

bretticus

Can you explain what you are trying to accomplish here?

Thanks

Snoopie

I have a user/profile system, and $text is the users profiletext.

And I want users to be able to have stuff like "<3" in their profiletext... Also, some people would write stuff like "<-Name: MyName->", and I don't want it to see it as HTML tags, so therefore i use the htmlspecialchars().

But I also want users to be able to use specific tags, in this example it would be <a>. So I basicly want to replace <a parameters>text</a> with <a parameters>text</a>

Hope u understand 😉

mrhappiness

$text = preg_replace('%&lt;a(.*)&gt;(.*)&lt;/a&gt;%siU', '<a$1>$2</a>', $text);

but why don't you use bb-codes like in this forum
[url]http://www.example.com[/url] is so much easier imho

btw: if you check the "Disable Smilies in This Post" box you can write 😉 ...

Snoopie

It works, thx

Can you please tell me what the '%', 's', 'i' and 'U' do?

Snoopie

Also need help with another thing

How to make this work:

$text = preg_replace('%&lt;([bui])(.*)&gt;(.*)&lt;/$1&gt;%siU', '<$1$2>$3</$1>', $text);

mrhappiness

Originally posted by Snoopie
Can you please tell me what the '%', 's', 'i' and 'U' do?

http://www.php.net/manual/reference.pcre.pattern.modifiers.php
http://www.php.net/manual/reference.pcre.pattern.syntax.php

should answer your 2nd question as well g

and why don't you wanna use instead of and ?
would make things much easier...

Snoopie

Don't want to confuse people any more than necessary. In my country alot of young people know some basic HTML but still they are stupid in that, call it "computer stuff".

Well, it's non-explainable..

Snoopie

Need some help on this:

$text = $gettextfromdb;
$text = htmlspecialchars($text, ENT_NOQUOTES);
$text = nl2br($text);
$text = preg_replace('%&lt;(a|b|blockquote|center|div|font|h1|h2|h3|h4|h5|h6|i|img|li|marquee|menu|ol|option|p|select|sub|sup|table|td|th|tr|u|ul)(.*)&gt;(.*)&lt;/(a|b|blockquote|center|div|font|h1|h2|h3|h4|h5|h6|i|img|li|marquee|menu|ol|option|p|select|sub|sup|table|td|th|tr|u|ul)&gt;%siU', '<$1$2>$3<$4>', $text);

It doesn't work as intended and I have no idea why..

Theres not a space between "&" and "lt;", it's only here on the forum..