Class template

[Dat]

Where can I find a tutorial on how to make a if statement in a template.

 

Example:

 

<if condition="$var">
<!-- Do something -->
</if>

 

So when phrased it will:

 

if($var)
{
Do it
}

[DyslexicDog]

It depends on the template engine you are working with, please check the documentation of your template system.

[Dat]

That's the thing, I'm creating my own oop class template system. I have this website, and I want to learn so I like to create everything by me. except for the forum but that's not related to this topic.

[Aeglos]

Your honor, I object! 

 

It's not really answering your question, but you could take a look at this often cited article:

 

http://www.sitepoint.com/article/beyond-template-engine

 

It might give you some new light and things to consider when thinking about a templating engine.

 

 

[Dat]

How about something that I can do similar to vbulletin's template system.

[LemonInflux]

Have a look at Smarty. Smarty is my favourite template engine, hasn't let me down so far, and has support for the features such as if, foreach etc. etc.

[blu3t00th]

	preg_match_all('/<if condition\=\"(.*)\">/U', $templatecode, $if_cond);
	foreach($if_cond[1] as $value) {
	eval("if(".$value.") {
		\$cond_result = true;
	}else{
		\$cond_result = false;
	}");
		if($cond_result == true) {
			$templatecode = preg_replace('/<if condition\=\"'.$value.'">/', '<?php if(true) { ?>', $templatecode);
		}else{
			$templatecode = preg_replace('/<if condition\=\"'.$value.'">/', '<?php if(false) { ?>', $templatecode);
		}
	}
	// change the elses
	$templatecode = preg_replace('/<else \/>/', '<?php }else{ ?>', $templatecode);

	// change the ending of the ifs
	$templatecode = preg_replace('/<\/if>/', '<?php } ?>', $templatecode);
	if($do_eval == 2) {
		return eval('?>'.$templatecode);
	}else{
		return $templatecode;
	}

 

You can figure it out yourself

[Dat]

	preg_match_all('/<if condition\=\"(.*)\">/U', $templatecode, $if_cond);
	foreach($if_cond[1] as $value) {
	eval("if(".$value.") {
		\$cond_result = true;
	}else{
		\$cond_result = false;
	}");
		if($cond_result == true) {
			$templatecode = preg_replace('/<if condition\=\"'.$value.'">/', '<?php if(true) { ?>', $templatecode);
		}else{
			$templatecode = preg_replace('/<if condition\=\"'.$value.'">/', '<?php if(false) { ?>', $templatecode);
		}
	}
	// change the elses
	$templatecode = preg_replace('/<else \/>/', '<?php }else{ ?>', $templatecode);

	// change the ending of the ifs
	$templatecode = preg_replace('/<\/if>/', '<?php } ?>', $templatecode);
	if($do_eval == 2) {
		return eval('?>'.$templatecode);
	}else{
		return $templatecode;
	}

 

You can figure it out yourself

 

Doesn't seem to work, but I must THANK YOU for this code.

 

Here is a link to my test file. (1) is the raw template (2) is after it replaces {CONTENT} and (3) shows the ending result after using the function you have created for me.

[nloding]

That code fragment is missing a " and, I believe, a ) in the eval statement.

[blu3t00th]

eval("if(".$value.")") {

 

That should fix it, it was from my un  finished/tested template system. Its a bit slopy but it does the job :/

 

Did you get it working?

[Dat]

Yeah I think so, I just came back to coding; you know that feeling when you look at the code that you just worked on a week ago, yeah look bizzar. I forgot what the problem I found before but I fixed it.

 

Now the last piece is actually executing the code, because it comes out as raw code.

 

I don't get this last piece...:

		if($do_eval == 2) {
		return eval('?>'.$templatecode);
	}else{
		return $templatecode;
	}

 

[Dat]

Actually my real question is why do I have to include '?>' in the eval function:

return eval('?>'.$templatecode);

 

[blu3t00th]

I had that for something else, all my code is all mixed together, just pulled it out so you would get the idea n how to work it

 

Try getting rid of all 5 of those lines and just use

 

return $templatecode;

[Dat]

Why does it have the '?>' in it because, right now I want to embed php in my template and I can't do that unless I have that...

[Dat]

Okay I nearly have it now!~

 

How can I get this: $Template->exe_template('anime', $animearray);

 

into plain text because right now I have it as $animepage = $Template->exe_template('anime', $animearray); and it's doing something that I don't want it to be doing and that is outputting on top of the page!!!

 

I know $animepage = 'works';

[nloding]

You're gonna have to give me more code to go on -- that doesn't tell me anything.  What is that function, and what is being put at the top of the page?  And do you know $animepage contains what you want it to (ie, the variable is working) or literally $animepage == 'works'?

[Dat]

How can I get this to work:

 

$animepage = $Template->exe_template('anime', $animearray);

 

Inside class.php:

	function exe_template($templatename, $arrayvar)
{
	$template = $this->buff_template($templatename);
	$template = $this->parse_variables($template, $arrayvar);
	$template = $this->parse_tags($template);
	return $template;
}

 

because when I place the above variable it prints $Template->exe_template('anime', $animearray); even though I didn't tell it too!~ and it doesn't place it into the variable!!!

[nloding]

What's the code surrounding the line '$animpage =.....'?

 

Just to clarify, it seems that when your code executes this line:

 

$animepage = $Template->exe_template('anime', $animearray);

 

... The page itself displays "$Template->exe_template('anime', $animearray);", like you were echoing the text?

[Dat]

Okay I got it to work finally!~! What happend was that I used eval as the return and you know it didn't come out right. So what I did was put all that off until all the replacing is done and then I used eval.

 

Now here's another issue if for some reason that I misspell condition I don't want eval to give me the normal problem message I want something like }else{ or like exit()