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First Look at vBulletin 4 Template Variables
Reposted from my site at www.vbcodex.com Actually, Scott's blog was the first look but I am going to talk about vBulletin 4's Template Variables today. Back in the beginning, it was decided that vBulletin needed an easy to use template system. This also required that we allow PHP variables that could be evaluated and displayed to the end user in order to get the data out. This was simple and easy since PHP at its beginning was just a simple templating engine itself. However over time, it became apparent that we needed our own structures in order to coax HTML along and present dynamic data to the user while allowing the designer/site owner control and not requiring knowledge of PHP. With that the <if> and <phrase> tag constructs were developed in 3.0 and there was much rejoicing. Later it became apparent that programmers wanted to be able to easily inject their own code into the templates without bothering the site owner. At first they used regular expressions and other replacement techniques. However as templates were updated or changed, they could break these techniques so the concept of Template Hooks were born. Now developers could assign their code to a specific variable and have it appear without the site owner doing anything. Unfortunately, template hooks aren't used as widely as they could be so the above techniques are still used. The problem though with template hooks, <if> conditionals and <phrase> tags is that it made it very difficult to work with templates in tools like Dreamweaver and Go Live!. Syntax highlighting was off, variables didn't render and preview was a general mess. With the move to an object oriented template system in vBulletin 4, this would have become even worse over time. So the developers decided to move vBulletin's proprietary tags to their own namespace and create a better way of presenting variables within the templates. For variables, they adopted a 'curly node' syntax that moves away from the traditional PHP variable system and tells the system how to process each type of variable. vBulletin 4 will ship with support for a variety of these variables for different purposes. The variable name tells vBulletin how to process the output. Today, I want to go over some of these. Variable format: Code:
{vb:type value.key} Examples: Code:
$bbuserinfo[userid] => {vb:var bbuserinfo.userid} $bbuserinfo[musername] => {vb:raw bbuserinfo.musername} $vbphrase[welcome] => {vb:rawphrase welcome} $stylevar[imgdir_misc] =>{vb:stylevar imgdir_misc} Code:
{vb:var variable} If your variable outputs HTML code, then you'll want to use raw instead. RAW Code:
{vb:raw variable} PHRASE Code:
{vb:phrase phrase, param1, param2...} If the phrase includes HTML code, you should use rawphrase instead. RAWPHRASE Code:
{vb:rawphrase phrase, param1, param2...} STYLEVAR Code:
{vb:stylevar variable} Summary These are just some of the variables being used. There are other types that I will cover later. These include the previously mentioned link but also include date, time, number, if, escapejs, urlencode, and math. To finish today, I will leave you with a template example. HTML Code:
<vb:if condition="$show['bbcodephp']"> <div class="block bbcodeblock"> <h2 class="blockhead">{vb:rawphrase php_code}<a name="php"></a></h2> <div class="blockrow"> <h3 class="blocksubhead">{vb:rawphrase php_tag_performs}</h3> <ul class="codeblock"> <li class="blockrow floatcontainer"> <div class="desc">[php]<span class="highlight">{vb:rawphrase value}</span>[/php]</div> <div class="title" width="20%">{vb:rawphrase usage}</div> </li> <li class="blockrow floatcontainer"> <div class="desc">[php]<br /> $myvar = 'Hello World!';<br /> for ($<i></i>i = 0; \$i < 10; \$i++)<br /> {<br /> echo $myvar . "\n";<br /> }<br /> [/php]</div> <div class="desc">{vb:rawphrase example_usage}</div> </li> <li class="blockrow floatcontainer"> <div class="desc">{vb:raw specialbbcode.php}</div> <div class="title" width="20%">{vb:rawphrase example_output}</div> </li> </ul> </div> </div> </vb:if> |
#22
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Can someone please convert these for me?
Code:
$spacer_open $spacer_close |
#23
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{vb:raw spacer_open} {vb:raw spacer_close} unless 4.x has a different mechanism. Double check the brackets, I'm not sure if they are correct. |
#24
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Nope.. they aren't correct. I already tried that before posting here
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#25
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Quote:
HTML Code:
{vb:raw spacer_open} {vb:raw spacer_close} PHP Code:
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#26
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#27
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Hi everyone
i have a php file that contain some variable and i tried to connect them together like a URL (link) $folder = $folders = $vbulletin->options['folder']; $subfolder = $folders = $vbulletin->options['subfolder']; $file = $folders = $vbulletin->options['file']; $url = $folder/$subfolder/$file; then i got an error like Warning: Division by zero in E:\xampp\htdocs\test\test.php on line 184 note: those code on line 184 any help or suggestion will be appreciated or with those variable how can i put them in my template {vb:var folder}/{vb:var subfolder}/{vb:var file} within $templater->register(''); is it correct ? thanks, |
#28
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#29
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thank you very much TalkVirginia
it works |
#30
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#31
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The template hook, $template_hook['showthread_above_posts'] for example, is the variable you want to populate to display your data. The hook location, showthread_complete for example, is the hook in the php file that you use to load the template variable with your data by rendering a template for instance. You can select these hook locations in the plugin manager drop down when you create a new plugin.
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More Information | |
Template Usage:
Phrase Groups Available:
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Included Files:
Hooks Called:
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