CMS Made Simple Forums

Posted: **Sun Jul 19, 2009 2:25 pm**

While creating a module I had a look at the News module. In News/action.defaultadmin.php I found this code snippet:

if( $this->CheckPermission( 'Modify Templates' ) ) {
echo $this->StartTab('summary_template', $params);
{
echo ''.$this->Lang('title_available_templates').'';
$this->_AdminCreateTemplateList($id,$returnid,
'summary',
'default_summary_template_contents',
'summary_template',
'current_summary_template',
$this->Lang('title_summary_template'));
}
echo $this->EndTab();

My question is what this brace is doing:

echo $this->StartTab('summary_template', $params);
{

Thanks,

Rob

Posted: **Sun Jul 19, 2009 11:49 pm**

I think what he's saying is that there's no "conditional" statement to warrant the "{".

Nullig

Posted: **Mon Jul 20, 2009 7:55 am**

Nullig wrote: I think what he's saying is that there's no "conditional" statement to warrant the "{".

Nullig

Indeed

No If, no function, just an opening brace, some code and then a closing brace.
I’ve had a look at the PHP documentation but there is nothing about this kind of use.

Rob

Posted: **Mon Jul 20, 2009 11:36 am**

AFAIK the curly braces are (besides control structures) mainly used for complex syntax in strings.

I use it a lot when I'm using object methods in sql queries, for example:

Code: Select all

$sql = "SELECT * FROM {$config->GetTable()} WHERE some_field = {$someobject->GetSomeValue()}";

(to prevent having to do something like:)

Code: Select all

$sql = "SELECT * FROM " . $config->GetTable() . " WHERE some_field = " . $someobject->GetSomeValue()";

(or:)

Code: Select all

$table = $config->GetTable();
$value = $someobject->GetSomeValue();
$sql = "SELECT * FROM $table WHERE some_field = $value;

When they're used around a some lines of code like in this case I think it's just to show that the lines/statements form a "code block"/statement group (for readability purposes).

statements can be grouped into a statement-group by encapsulating a group of statements with curly braces

Regards,
D

Posted: **Tue Jul 21, 2009 9:01 am**

I am coding PHP for years but never saw this handy construction.
Thank you Dee for the kind explanation.

Best regards,

Rob

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