String Replacing?

mwood_2k2

Hi,

I am working on a website and I am seeking the knowledge of how to code string replacement into html, i.e;

(Don't know if this will come out right!)

[images]webaddress[/images] = <img src='webaddress'>

What I would like to do is make groups of commands that will allow someone without much web design experience to be able to update my site without using much html knowledge, for example much quicker to do say a block of flash code once and then have it repeated by say for example;

[swf] address of swf file [/swf]

Can anyone tell me how to set this up?
Cheers

mwood_2k2

Cmon people!

Someone must know!

Cheers

Bunkermaster

RTFM

str_replace

mwood_2k2

I don't understand how to use it........duh! lol

mwood_2k2

Bleh I've been trying and I just can't do it, it won't do it the way I want it to.

What I'm trying to do is for example, define in an external file which I will include() later, codes like if I wanted to just put in my pages [graphic] it would produce <img src=', and finish it with [/graphic], which would produce '> when viewed through a browser.

I just don't understand it from the manual how to make it work the way I described above.

I want people to just be able to load in a file (not the included one), and type in [image]http://www.foobar.com/foo.jpg[/image] and when it's served to a viewer it shows the html <img src='http://www.foobar.com/foo.jpg'>....

I'm sure this is possible, I've seen the effect of it, i.e; bbcode..

Can someone please give me a working example?!

Bunkermaster

have a look at the PHPBB code (http://www.phpbb.com) it has everything you need (a BBCode parser actually)

mwood_2k2

Thats leaft me even more confused than I was!

Maybe you haven't understood what I'm trying to do, I'm trying to set this up from a development end, for example I would have my php page like so;


<?php

// Include to allow BBCode intergration into this file.
include ("bbcode.php");

// Html code for page.
echo ("

<html>
<head></head>
<body>

Look at my Bird! <br>
[image]http://www.birdys.com/birdy.gif[/image] <p>

Isnt she pretty!

</body>
</html>

");

?>

The above would output in the browser as the following;


<html>
<head></head>
<body>

Look at my Bird! <br>
<img src='http://www.birdys.com/birdy.gif'> <p>

Isnt she pretty!

</body>
</html>

I had a look at the PHPBB thingy, and it is way too complicated for me. I know it's a big ask but could someone please give me an example of what should be in bbcode.php to show my example in this post if it's possible! Also a repetition so I can understand how to repeat/add functions.

Bunkermaster

same problem. You need to code a echo like command which will parse your text for specific tags.
have a look at ereg_replace it will answer your problem

mwood_2k2

Dude lol,

ENGLISH! I am a begginner here. Telling me to "code an echo like command which will parse your text for specific tags" is double dutch to me lol.

Bunkermaster

oops ok sorry.
What you need is to create a new function that will take your code as argument and print the HTML code resulting.

The way to do it i to have ereg_replace look for the patern you want matched (in your case [image]somelink[/image]) and replace it with the right HTML code (<img src="somelink">).

Manual entry for the function you need :
http://www.php.net/manual/en/function.ereg-replace.php

Good luck

PS : Was it english? 😉

mwood_2k2

Ok I think I get it,

So can you please modify the following to show me what you mean according to what I wish to do, i.e; the image tag, and how to impliment it in the correct way inside an echo()?


$string = "This is a test";
echo ereg_replace (" is", " was", $string);
echo ereg_replace ("( )is", "\\1was", $string);
echo ereg_replace ("(( )is)", "\\2was", $string);

Please help me! lol.

I am attempting to develop a custom mini-markup language which will basically make it easier for my website to be updated if say I have a client that has limited knowledge of html etc. I can make it easy for them and also easy for me whilst developing websitesas I don't have to repeat huge blocks of code or applications more than once when they can be inputted by single custom tags =]

If you get what I mean. Any more help would be appreciated!

Cheers

Bunkermaster

if you downloaded phpBB2 have a look at

function prepare_message($message, $html_on, $bbcode_on, $smile_on, $bbcode_uid = 0)

in the [root dir]/includes/functions_post.php script it's got everything you need and more.

mwood_2k2

It would be good if I understood it and wasnt a newbie but I am hint lol, so please alter the example aforementioned to do the [image] and [/image] replacements....Geez I'm getting confussed!

Cheers for your help so far.

mwood_2k2

Ok, here is how I newbily think it works lol, tell me what I'm doing or have done wrong...


<?php

$image1 = "";
$image2 = "";

$image1 = str_replace("[image]", "<img src='", $image1);
$image2 = str_replace("[/image]", "'>", $image2);

echo("

<html>
<head></head>
<body>

<center>[image]http://bleh.foo.co.uk/bar.jpg[/image]</center>

</body>
</html>
");
?>

Bunkermaster

	$text = "[image]http://www.birdys.com/birdy.gif[/image]";
	$test = ereg_replace( "\[image\](.*)\[/image\]" , "<IMG SRC=\"\\\\1\">" , $text );
	echo $test;

should do it...

mwood_2k2

I don't get it,

By the way that looks.....u cant specify in ur actual command on the page what address goes into it, it would already be specified in the page that the replacements are set wouldn't it? I need to be able to type that in between the [image] and [/image] markups. Also, what is the 1 for?

Cheers

dannys

There's probably a better way to do this but the following does work

$code="Here are my pictures: [image]mypic.png[/image] [image]mynextpic.png[/image]";

$code=preg_replace("/\\[image\\](.*)\\[\\/image\\]/Ui",'<img src="\\\\1">',$code);

echo $code;

mwood_2k2

Hmmm, your code results in an error danny;

Warning: Unknown modifier 'a' in /home/user/public_html/test.php on line 5

Heres the code;


<?php

$code="Here are my pictures: [image]mypic.png[/image] [image]mynextpic.png[/image]";

$code=preg_replace("/[image](.*)[/image]/Ui",'<img src="\1">',$code);

echo (" $code

");
?>

Yours Bunker also doesnt work properly lol. Heres what it does in the html source;

[<IMG SRC='mage]http://www.birdys.com/birdy.gif[/imag\'>]

Agggghhhh! lol

dannys

Originally posted by Bunkermaster

	$text = "[image]http://www.birdys.com/birdy.gif[/image]";
	$test = ereg_replace( "\\[image\\](.*)\\[/image\\]" , "<IMG SRC=\"\\\\1\">" , $text );
	echo $test;

should do it...
[/B]

Well it works for 1 image but try it with:

$text = "[image]http://www.birdys.com/birdy.gif[/image] [image]http://www.birdys.com/birdy2.gif[/image]";

dannys

Originally posted by mwood_2k2
Hmmm, your code results in an error danny;

Warning: Unknown modifier 'a' in /home/user/public_html/test.php on line 5

Well my code does work and doesn't look like the code you just posted above. Try pasting again (vB stuffed up the backslashes the first time I posted it)