109 lines
4.4 KiB
Text
109 lines
4.4 KiB
Text
= Known incompatibilities with Smarty 2 =
|
|
|
|
== Syntax ==
|
|
|
|
Smarty 3 API has a new syntax. Much of the Smarty 2 syntax is supported
|
|
by a wrapper but deprecated. See the README that comes with Smarty 3 for more
|
|
information.
|
|
|
|
The {$array|@mod} syntax has always been a bit confusing, where an "@" is required
|
|
to apply a modifier to an array instead of the individual elements. Normally you
|
|
always want the modifier to apply to the variable regardless of its type. In Smarty 3,
|
|
{$array|mod} and {$array|@mod} behave identical. It is safe to drop the "@" and the
|
|
modifier will still apply to the array. If you really want the modifier to apply to
|
|
each array element, you must loop the array in-template, or use a custom modifier that
|
|
supports array iteration. Most smarty functions already escape values where necessary
|
|
such as {html_options}
|
|
|
|
== PHP Version ==
|
|
Smarty 3 is PHP 5 only. It will not work with PHP 4.
|
|
|
|
== {php} Tag ==
|
|
The {php} tag is disabled by default. The use of {php} tags is
|
|
deprecated. It can be enabled with $smarty->allow_php_tag=true.
|
|
|
|
But if you scatter PHP code which belongs together into several
|
|
{php} tags it may not work any longer.
|
|
|
|
== Delimiters and whitespace ==
|
|
Delimiters surrounded by whitespace are no longer treated as Smarty tags.
|
|
Therefore, { foo } will not compile as a tag, you must use {foo}. This change
|
|
Makes Javascript/CSS easier to work with, eliminating the need for {literal}.
|
|
This can be disabled by setting $smarty->auto_literal = false;
|
|
|
|
== Unquoted Strings ==
|
|
Smarty 2 was a bit more forgiving (and ambiguous) when it comes to unquoted strings
|
|
in parameters. Smarty3 is more restrictive. You can still pass strings without quotes
|
|
so long as they contain no special characters. (anything outside of A-Za-z0-9_)
|
|
|
|
For example filename strings must be quoted
|
|
<source lang="smarty">
|
|
{include file='path/foo.tpl'}
|
|
</source>
|
|
|
|
== Extending the Smarty class ==
|
|
Smarty 3 makes use of the __construct method for initialization. If you are extending
|
|
the Smarty class, its constructor is not called implicitly if the your child class defines
|
|
its own constructor. In order to run Smarty's constructor, a call to parent::__construct()
|
|
within your child constructor is required.
|
|
|
|
<source lang="php">
|
|
class MySmarty extends Smarty {
|
|
function __construct() {
|
|
parent::__construct();
|
|
|
|
// your initialization code goes here
|
|
|
|
}
|
|
}
|
|
</source>
|
|
|
|
== Autoloader ==
|
|
Smarty 3 does register its own autoloader with spl_autoload_register. If your code has
|
|
an existing __autoload function then this function must be explicitly registered on
|
|
the __autoload stack. See http://us3.php.net/manual/en/function.spl-autoload-register.php
|
|
for further details.
|
|
|
|
== Plugin Filenames ==
|
|
Smarty 3 optionally supports the PHP spl_autoloader. The autoloader requires filenames
|
|
to be lower case. Because of this, Smarty plugin file names must also be lowercase.
|
|
In Smarty 2, mixed case file names did work.
|
|
|
|
== Scope of Special Smarty Variables ==
|
|
In Smarty 2 the special Smarty variables $smarty.section... and $smarty.foreach...
|
|
had global scope. If you had loops with the same name in subtemplates you could accidentally
|
|
overwrite values of parent template.
|
|
|
|
In Smarty 3 these special Smarty variable have only local scope in the template which
|
|
is defining the loop. If you need their value in a subtemplate you have to pass them
|
|
as parameter.
|
|
<source lang="smarty">
|
|
{include file='path/foo.tpl' index=$smarty.section.foo.index}
|
|
</source>
|
|
|
|
== SMARTY_RESOURCE_CHAR_SET ==
|
|
Smarty 3 sets the constant SMARTY_RESOURCE_CHAR_SET to utf-8 as default template charset.
|
|
This is now used also on modifiers like escape as default charset. If your templates use
|
|
other charsets make sure that you define the constant accordingly. Otherwise you may not
|
|
get any output.
|
|
|
|
== newline at {if} tags ==
|
|
A \n was added to the compiled code of the {if},{else},{elseif},{/if} tags to get output of newlines as expected by the template source.
|
|
If one of the {if} tags is at the line end you will now get a newline in the HTML output.
|
|
|
|
== trigger_error() ==
|
|
The API function trigger_error() has been removed because it did just map to PHP trigger_error.
|
|
However it's still included in the Smarty2 API wrapper.
|
|
|
|
== Smarty constants ==
|
|
The constants
|
|
SMARTY_PHP_PASSTHRU
|
|
SMARTY_PHP_QUOTE
|
|
SMARTY_PHP_REMOVE
|
|
SMARTY_PHP_ALLOW
|
|
have been replaced with class constants
|
|
Smarty::PHP_PASSTHRU
|
|
Smarty::PHP_QUOTE
|
|
Smarty::PHP_REMOVE
|
|
Smarty::PHP_ALLOW
|
|
|