[SOLVED] Escaping for PHP tags

[Xu Wei Jie]

I read about this link ( http://sg2.php.net/tokens ) on how the parser treats php open and close tags as tokens.

 

Previously, I asked about how to parse php tags as plain text and I was given solutions like using single quotes or the NOWDOC syntax.

 

i.e <?php echo '<?php echo "this is just plain text"?>' ?>

 

and

 

<?php

> echo <<<'EOD'

> <?php echo "this is just plain text" ?>

> EOD;

> ?>

 

I was wondering if there are any other solutions to escape php tags. Thanks everyone

 

 

[RussellReal]

1.. you could basically read whatever file you want..

 

like

 

if you want to show the code to lets say.. dothat.php

 

you could just do

 

<?php

$f = fopen($file = "dothat.php",'r');

$text = fread($f,filesize($file));

fclose($f);

echo htmlEntities($f);

?>

[Xu Wei Jie]

That will be kinda messy. what if I just want to parse inline tags as plain text? How do I tell the interpreter which tags to parse and which tags not to?

[RussellReal]

use < instead of < and use > instead of >

 

<pre><php

...

...

..

..

?></pre>

[Xu Wei Jie]

I forgot to mention. It goes through a PHP interpreter and not a server thus HTML tags would not be interpreted as well. I am trying to ask the PHP CLI not to interpret certain php tags.

[RussellReal]

you mean say you have a file

 

whatever.php

 

and you call it like

 

php whatever.php

 

you want it to READ out to you the contents of whatever.php

 

or do you want in the middle of some script,. to spit out some php code..?

 

assuming its the second one..

 

nowdoc would make the most sense

 

e.g

 

echo <<<'LaLa'

<?php

$e = "HOWDY!!";

echo $e;

?>

LaLa;

[Xu Wei Jie]

I also think that nowdoc is very sleek. However, if I want it to be a single liner i.e. <?php echo "test"> to be processed as plain text

 

The one that makes the most sense is <?php echo '<?php echo "test">'?>

 

nowdoc just makes the code a multi line code. It will make it hard to read.

 

Thus, I was wondering if I can tell the CLI not to interpret certain tags other than the solutions as typed above.

 

I have extra information about the tags being interpreted as tokens (http://sg2.php.net/tokens)

It states that <?php is interpreted as T_OPEN_TAG by the php cli. However , I don't know how to use it to my advantage.

[RussellReal]

you could still do

 

echo <<<'LaLa'

<?php echo "test";?>

LaLa;

[Xu Wei Jie]

yah but a one liner becomes a 3 liner in nowdoc syntax

[RussellReal]

its either that or manually escape things lol

[Xu Wei Jie]

Yup, that is why I am looking into php parsed tokens (http://sg2.php.net/tokens) to see how it can be done.

 

Anyone have experience with using these tokens to interpret php tags? Would appreciate if you could share with me ^.^

 

[PFMaBiSmAd]

The tokens (T_OPEN_TAG...) only exist after the code has been parsed and is in the intermediate "bytecode" form, before the interpretation/execution phase. Since you appear to be doing something with the php source code, anything at the point where the code is in the form of tokens won't help because all the code will be in the form of tokens.

 

If you state the overall goal of what you are trying to accomplish, someone can probably provide a direct answer on how to do it.

 

Edit: And did you ever look at the highlight_string function that was posted in your other thread on this subject - http://www.phpfreaks.com/forums/index.php/topic,238908.msg1113516.html#msg1113516

[Xu Wei Jie]

Yes I did take a look at the highlight function but it returns you additional html tags as well which is not what I wanted.

 

What I wish to accomplish can be as simple as

 

<?php echo '<?php echo 'This is a tag within a tag'?>'?> but I wish to find a more elegant solution. Because the above solution or the nowdoc syntax makes code hard to read. I would like to tell the parser to interpret certain php tags and escape certain php tags.

[Xu Wei Jie]

Anyone have any idea to this problem?