What is this syntax and how to debug it?
I am currently working on moving an expression engine site from one server to another and i noticed one issue i am having a hardtime debugging. When i upload an logo image all seems fine but the index.php page that the logo is displayed on it has this code
{embed="shared/head"}
<body class="{if segment_1 == ''}home{if:else}{segment_1}{/if}">
<div id="page" class="container">
<div class="span-22 prepend-1 append-1 last">
{embed="shared/masthead"}
{if logo !=''}
<div class="news_item_logo">
{organization}
{if link}<a href="http://{exp:php_text_format type="lowercase"}{if url !=''}{url}{if:else}{name}{/if}{/exp:php_text_format}"><img src="{logo}" width="130" alt="{title}" /></a>{if:else}
<img src="{logo}" width="130" alt="{开发者_开发问答title}" />{/if}
{/organization}
</div><!-- /.news_item_logo -->
<ul>
<li><h3>{title}</h3></li>
<li>{pub_date}</li>
{organization}
<li>{if link}<a href="http://{if url !=''}{url}{if:else}{name}{/if}">{/if}{exp:php_text_format type="lowercase"}{if url_text != ''}{url_text}{if:else}{name}{/if}{if link}{/exp:php_text_format}</a>{/if}</li>
{/organization}
<li>{if file}<a href="{site_url}{file}">PDF</a>{/if}{if web_link !='' AND file !=''} | {/if}{if web_link}<a href="{web_link}">HTML</a>{/if}</li>
</ul>
{if:else}
<ul class="no_logo">
<li><h3><a href="{web_link}">{title}</a></h3></li>
My question is this, I see curly brackets {} around if statements and i want to know first what language it is and second is there a way to debug like php print_r() because the code always goes to the else with the no_logo class and i want to know what and how i can test these variables "segment1" and "logo" and "organization" and "url" How do and where do i inspect these variables
You can gain some info about the given variables and values in the template using the following within your index.php:
<?php
$EE = get_instance();
var_dump($this->EE->TMPL);
?>
Note that PHP must be enabled in templates for that to work (see PHP in Templates).
{embed="shared/head"} - include the template head from the template group shared
<body class="{if segment_1 == ''}home{if:else}{segment_1}{/if}">
if the URI segment (EE/CI works with segments eg site.com/segment1/segment2/xxx) is empty (you are on the home page (www.site.com), then add no body class.
else, the user is on a page (in EE this is a template group), so set the class to be the name of the template group.
site.com/about-us produces class="about-us" - handy for page specific styling.
{embed="shared/masthead"} - include masthead
and so on.
The rest are conditionals to check if the variables have values, and outputs them
I presume you're using EE2.0, I'm not sure what {organizaton} is specifically, but that style:
{organization} {foo} {/organization}
in code igniter at least, is generally the equivalent of a foreach or looping through a recordset:
foreach($organizations as $organization) { // do something }
This is written in Expression Engine's own templating language.
You would have to check the documentation to see whether there is any way to debug variables.
Possibly helpful links:
Quick Reference Chart
PHP in Templates
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