mirror of
https://port.numenaute.org/aleajactaest/khanat-code-old.git
synced 2024-11-11 09:49:04 +00:00
574 lines
20 KiB
Text
574 lines
20 KiB
Text
Smarty 3.1.13
|
|
|
|
Author: Monte Ohrt <monte at ohrt dot com >
|
|
Author: Uwe Tews
|
|
|
|
AN INTRODUCTION TO SMARTY 3
|
|
|
|
NOTICE FOR 3.1 release:
|
|
|
|
Please see the SMARTY_3.1_NOTES.txt file that comes with the distribution.
|
|
|
|
NOTICE for 3.0.5 release:
|
|
|
|
Smarty now follows the PHP error_reporting level by default. If PHP does not mask E_NOTICE and you try to access an unset template variable, you will now get an E_NOTICE warning. To revert to the old behavior:
|
|
|
|
$smarty->error_reporting = E_ALL & ~E_NOTICE;
|
|
|
|
NOTICE for 3.0 release:
|
|
|
|
IMPORTANT: Some API adjustments have been made between the RC4 and 3.0 release.
|
|
We felt it is better to make these now instead of after a 3.0 release, then have to
|
|
immediately deprecate APIs in 3.1. Online documentation has been updated
|
|
to reflect these changes. Specifically:
|
|
|
|
---- API CHANGES RC4 -> 3.0 ----
|
|
|
|
$smarty->register->*
|
|
$smarty->unregister->*
|
|
$smarty->utility->*
|
|
$samrty->cache->*
|
|
|
|
Have all been changed to local method calls such as:
|
|
|
|
$smarty->clearAllCache()
|
|
$smarty->registerFoo()
|
|
$smarty->unregisterFoo()
|
|
$smarty->testInstall()
|
|
etc.
|
|
|
|
Registration of function, block, compiler, and modifier plugins have been
|
|
consolidated under two API calls:
|
|
|
|
$smarty->registerPlugin(...)
|
|
$smarty->unregisterPlugin(...)
|
|
|
|
Registration of pre, post, output and variable filters have been
|
|
consolidated under two API calls:
|
|
|
|
$smarty->registerFilter(...)
|
|
$smarty->unregisterFilter(...)
|
|
|
|
Please refer to the online documentation for all specific changes:
|
|
|
|
http://www.smarty.net/documentation
|
|
|
|
----
|
|
|
|
The Smarty 3 API has been refactored to a syntax geared
|
|
for consistency and modularity. The Smarty 2 API syntax is still supported, but
|
|
will throw a deprecation notice. You can disable the notices, but it is highly
|
|
recommended to adjust your syntax to Smarty 3, as the Smarty 2 syntax must run
|
|
through an extra rerouting wrapper.
|
|
|
|
Basically, all Smarty methods now follow the "fooBarBaz" camel case syntax. Also,
|
|
all Smarty properties now have getters and setters. So for example, the property
|
|
$smarty->cache_dir can be set with $smarty->setCacheDir('foo/') and can be
|
|
retrieved with $smarty->getCacheDir().
|
|
|
|
Some of the Smarty 3 APIs have been revoked such as the "is*" methods that were
|
|
just duplicate functions of the now available "get*" methods.
|
|
|
|
Here is a rundown of the Smarty 3 API:
|
|
|
|
$smarty->fetch($template, $cache_id = null, $compile_id = null, $parent = null)
|
|
$smarty->display($template, $cache_id = null, $compile_id = null, $parent = null)
|
|
$smarty->isCached($template, $cache_id = null, $compile_id = null)
|
|
$smarty->createData($parent = null)
|
|
$smarty->createTemplate($template, $cache_id = null, $compile_id = null, $parent = null)
|
|
$smarty->enableSecurity()
|
|
$smarty->disableSecurity()
|
|
$smarty->setTemplateDir($template_dir)
|
|
$smarty->addTemplateDir($template_dir)
|
|
$smarty->templateExists($resource_name)
|
|
$smarty->loadPlugin($plugin_name, $check = true)
|
|
$smarty->loadFilter($type, $name)
|
|
$smarty->setExceptionHandler($handler)
|
|
$smarty->addPluginsDir($plugins_dir)
|
|
$smarty->getGlobal($varname = null)
|
|
$smarty->getRegisteredObject($name)
|
|
$smarty->getDebugTemplate()
|
|
$smarty->setDebugTemplate($tpl_name)
|
|
$smarty->assign($tpl_var, $value = null, $nocache = false)
|
|
$smarty->assignGlobal($varname, $value = null, $nocache = false)
|
|
$smarty->assignByRef($tpl_var, &$value, $nocache = false)
|
|
$smarty->append($tpl_var, $value = null, $merge = false, $nocache = false)
|
|
$smarty->appendByRef($tpl_var, &$value, $merge = false)
|
|
$smarty->clearAssign($tpl_var)
|
|
$smarty->clearAllAssign()
|
|
$smarty->configLoad($config_file, $sections = null)
|
|
$smarty->getVariable($variable, $_ptr = null, $search_parents = true, $error_enable = true)
|
|
$smarty->getConfigVariable($variable)
|
|
$smarty->getStreamVariable($variable)
|
|
$smarty->getConfigVars($varname = null)
|
|
$smarty->clearConfig($varname = null)
|
|
$smarty->getTemplateVars($varname = null, $_ptr = null, $search_parents = true)
|
|
$smarty->clearAllCache($exp_time = null, $type = null)
|
|
$smarty->clearCache($template_name, $cache_id = null, $compile_id = null, $exp_time = null, $type = null)
|
|
|
|
$smarty->registerPlugin($type, $tag, $callback, $cacheable = true, $cache_attr = array())
|
|
|
|
$smarty->registerObject($object_name, $object_impl, $allowed = array(), $smarty_args = true, $block_methods = array())
|
|
|
|
$smarty->registerFilter($type, $function_name)
|
|
$smarty->registerResource($resource_type, $function_names)
|
|
$smarty->registerDefaultPluginHandler($function_name)
|
|
$smarty->registerDefaultTemplateHandler($function_name)
|
|
|
|
$smarty->unregisterPlugin($type, $tag)
|
|
$smarty->unregisterObject($object_name)
|
|
$smarty->unregisterFilter($type, $function_name)
|
|
$smarty->unregisterResource($resource_type)
|
|
|
|
$smarty->compileAllTemplates($extention = '.tpl', $force_compile = false, $time_limit = 0, $max_errors = null)
|
|
$smarty->clearCompiledTemplate($resource_name = null, $compile_id = null, $exp_time = null)
|
|
$smarty->testInstall()
|
|
|
|
// then all the getters/setters, available for all properties. Here are a few:
|
|
|
|
$caching = $smarty->getCaching(); // get $smarty->caching
|
|
$smarty->setCaching(true); // set $smarty->caching
|
|
$smarty->setDeprecationNotices(false); // set $smarty->deprecation_notices
|
|
$smarty->setCacheId($id); // set $smarty->cache_id
|
|
$debugging = $smarty->getDebugging(); // get $smarty->debugging
|
|
|
|
|
|
FILE STRUCTURE
|
|
|
|
The Smarty 3 file structure is similar to Smarty 2:
|
|
|
|
/libs/
|
|
Smarty.class.php
|
|
/libs/sysplugins/
|
|
internal.*
|
|
/libs/plugins/
|
|
function.mailto.php
|
|
modifier.escape.php
|
|
...
|
|
|
|
A lot of Smarty 3 core functionality lies in the sysplugins directory; you do
|
|
not need to change any files here. The /libs/plugins/ folder is where Smarty
|
|
plugins are located. You can add your own here, or create a separate plugin
|
|
directory, just the same as Smarty 2. You will still need to create your own
|
|
/cache/, /templates/, /templates_c/, /configs/ folders. Be sure /cache/ and
|
|
/templates_c/ are writable.
|
|
|
|
The typical way to use Smarty 3 should also look familiar:
|
|
|
|
require('Smarty.class.php');
|
|
$smarty = new Smarty;
|
|
$smarty->assign('foo','bar');
|
|
$smarty->display('index.tpl');
|
|
|
|
|
|
However, Smarty 3 works completely different on the inside. Smarty 3 is mostly
|
|
backward compatible with Smarty 2, except for the following items:
|
|
|
|
*) Smarty 3 is PHP 5 only. It will not work with PHP 4.
|
|
*) The {php} tag is disabled by default. Enable with $smarty->allow_php_tag=true.
|
|
*) 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 $smarty->auto_literal = false;
|
|
*) The Smarty 3 API is a bit different. Many Smarty 2 API calls are deprecated
|
|
but still work. You will want to update your calls to Smarty 3 for maximum
|
|
efficiency.
|
|
|
|
|
|
There are many things that are new to Smarty 3. Here are the notable items:
|
|
|
|
LEXER/PARSER
|
|
============
|
|
|
|
Smarty 3 now uses a lexing tokenizer for its parser/compiler. Basically, this
|
|
means Smarty has some syntax additions that make life easier such as in-template
|
|
math, shorter/intuitive function parameter options, infinite function recursion,
|
|
more accurate error handling, etc.
|
|
|
|
|
|
WHAT IS NEW IN SMARTY TEMPLATE SYNTAX
|
|
=====================================
|
|
|
|
Smarty 3 allows expressions almost anywhere. Expressions can include PHP
|
|
functions as long as they are not disabled by the security policy, object
|
|
methods and properties, etc. The {math} plugin is no longer necessary but
|
|
is still supported for BC.
|
|
|
|
Examples:
|
|
{$x+$y} will output the sum of x and y.
|
|
{$foo = strlen($bar)} function in assignment
|
|
{assign var=foo value= $x+$y} in attributes
|
|
{$foo = myfunct( ($x+$y)*3 )} as function parameter
|
|
{$foo[$x+3]} as array index
|
|
|
|
Smarty tags can be used as values within other tags.
|
|
Example: {$foo={counter}+3}
|
|
|
|
Smarty tags can also be used inside double quoted strings.
|
|
Example: {$foo="this is message {counter}"}
|
|
|
|
You can define arrays within templates.
|
|
Examples:
|
|
{assign var=foo value=[1,2,3]}
|
|
{assign var=foo value=['y'=>'yellow','b'=>'blue']}
|
|
Arrays can be nested.
|
|
{assign var=foo value=[1,[9,8],3]}
|
|
|
|
There is a new short syntax supported for assigning variables.
|
|
Example: {$foo=$bar+2}
|
|
|
|
You can assign a value to a specific array element. If the variable exists but
|
|
is not an array, it is converted to an array before the new values are assigned.
|
|
Examples:
|
|
{$foo['bar']=1}
|
|
{$foo['bar']['blar']=1}
|
|
|
|
You can append values to an array. If the variable exists but is not an array,
|
|
it is converted to an array before the new values are assigned.
|
|
Example: {$foo[]=1}
|
|
|
|
You can use a PHP-like syntax for accessing array elements, as well as the
|
|
original "dot" notation.
|
|
Examples:
|
|
{$foo[1]} normal access
|
|
{$foo['bar']}
|
|
{$foo['bar'][1]}
|
|
{$foo[$x+$x]} index may contain any expression
|
|
{$foo[$bar[1]]} nested index
|
|
{$foo[section_name]} smarty section access, not array access!
|
|
|
|
The original "dot" notation stays, and with improvements.
|
|
Examples:
|
|
{$foo.a.b.c} => $foo['a']['b']['c']
|
|
{$foo.a.$b.c} => $foo['a'][$b]['c'] with variable index
|
|
{$foo.a.{$b+4}.c} => $foo['a'][$b+4]['c'] with expression as index
|
|
{$foo.a.{$b.c}} => $foo['a'][$b['c']] with nested index
|
|
|
|
note that { and } are used to address ambiguties when nesting the dot syntax.
|
|
|
|
Variable names themselves can be variable and contain expressions.
|
|
Examples:
|
|
$foo normal variable
|
|
$foo_{$bar} variable name containing other variable
|
|
$foo_{$x+$y} variable name containing expressions
|
|
$foo_{$bar}_buh_{$blar} variable name with multiple segments
|
|
{$foo_{$x}} will output the variable $foo_1 if $x has a value of 1.
|
|
|
|
Object method chaining is implemented.
|
|
Example: {$object->method1($x)->method2($y)}
|
|
|
|
{for} tag added for looping (replacement for {section} tag):
|
|
{for $x=0, $y=count($foo); $x<$y; $x++} .... {/for}
|
|
Any number of statements can be used separated by comma as the first
|
|
inital expression at {for}.
|
|
|
|
{for $x = $start to $end step $step} ... {/for}is in the SVN now .
|
|
You can use also
|
|
{for $x = $start to $end} ... {/for}
|
|
In this case the step value will be automaticall 1 or -1 depending on the start and end values.
|
|
Instead of $start and $end you can use any valid expression.
|
|
Inside the loop the following special vars can be accessed:
|
|
$x@iteration = number of iteration
|
|
$x@total = total number of iterations
|
|
$x@first = true on first iteration
|
|
$x@last = true on last iteration
|
|
|
|
|
|
The Smarty 2 {section} syntax is still supported.
|
|
|
|
New shorter {foreach} syntax to loop over an array.
|
|
Example: {foreach $myarray as $var}...{/foreach}
|
|
|
|
Within the foreach loop, properties are access via:
|
|
|
|
$var@key foreach $var array key
|
|
$var@iteration foreach current iteration count (1,2,3...)
|
|
$var@index foreach current index count (0,1,2...)
|
|
$var@total foreach $var array total
|
|
$var@first true on first iteration
|
|
$var@last true on last iteration
|
|
|
|
The Smarty 2 {foreach} tag syntax is still supported.
|
|
|
|
NOTE: {$bar[foo]} still indicates a variable inside of a {section} named foo.
|
|
If you want to access an array element with index foo, you must use quotes
|
|
such as {$bar['foo']}, or use the dot syntax {$bar.foo}.
|
|
|
|
while block tag is now implemented:
|
|
{while $foo}...{/while}
|
|
{while $x lt 10}...{/while}
|
|
|
|
Direct access to PHP functions:
|
|
Just as you can use PHP functions as modifiers directly, you can now access
|
|
PHP functions directly, provided they are permitted by security settings:
|
|
{time()}
|
|
|
|
There is a new {function}...{/function} block tag to implement a template function.
|
|
This enables reuse of code sequences like a plugin function. It can call itself recursively.
|
|
Template function must be called with the new {call name=foo...} tag.
|
|
|
|
Example:
|
|
|
|
Template file:
|
|
{function name=menu level=0}
|
|
<ul class="level{$level}">
|
|
{foreach $data as $entry}
|
|
{if is_array($entry)}
|
|
<li>{$entry@key}</li>
|
|
{call name=menu data=$entry level=$level+1}
|
|
{else}
|
|
<li>{$entry}</li>
|
|
{/if}
|
|
{/foreach}
|
|
</ul>
|
|
{/function}
|
|
|
|
{$menu = ['item1','item2','item3' => ['item3-1','item3-2','item3-3' =>
|
|
['item3-3-1','item3-3-2']],'item4']}
|
|
|
|
{call name=menu data=$menu}
|
|
|
|
|
|
Generated output:
|
|
* item1
|
|
* item2
|
|
* item3
|
|
o item3-1
|
|
o item3-2
|
|
o item3-3
|
|
+ item3-3-1
|
|
+ item3-3-2
|
|
* item4
|
|
|
|
The function tag itself must have the "name" attribute. This name is the tag
|
|
name when calling the function. The function tag may have any number of
|
|
additional attributes. These will be default settings for local variables.
|
|
|
|
New {nocache} block function:
|
|
{nocache}...{/nocache} will declare a section of the template to be non-cached
|
|
when template caching is enabled.
|
|
|
|
New nocache attribute:
|
|
You can declare variable/function output as non-cached with the nocache attribute.
|
|
Examples:
|
|
|
|
{$foo nocache=true}
|
|
{$foo nocache} /* same */
|
|
|
|
{foo bar="baz" nocache=true}
|
|
{foo bar="baz" nocache} /* same */
|
|
|
|
{time() nocache=true}
|
|
{time() nocache} /* same */
|
|
|
|
Or you can also assign the variable in your script as nocache:
|
|
$smarty->assign('foo',$something,true); // third param is nocache setting
|
|
{$foo} /* non-cached */
|
|
|
|
$smarty.current_dir returns the directory name of the current template.
|
|
|
|
You can use strings directly as templates with the "string" resource type.
|
|
Examples:
|
|
$smarty->display('string:This is my template, {$foo}!'); // php
|
|
{include file="string:This is my template, {$foo}!"} // template
|
|
|
|
|
|
|
|
VARIABLE SCOPE / VARIABLE STORAGE
|
|
=================================
|
|
|
|
In Smarty 2, all assigned variables were stored within the Smarty object.
|
|
Therefore, all variables assigned in PHP were accessible by all subsequent
|
|
fetch and display template calls.
|
|
|
|
In Smarty 3, we have the choice to assign variables to the main Smarty object,
|
|
to user-created data objects, and to user-created template objects.
|
|
These objects can be chained. The object at the end of a chain can access all
|
|
variables belonging to that template and all variables within the parent objects.
|
|
The Smarty object can only be the root of a chain, but a chain can be isolated
|
|
from the Smarty object.
|
|
|
|
All known Smarty assignment interfaces will work on the data and template objects.
|
|
|
|
Besides the above mentioned objects, there is also a special storage area for
|
|
global variables.
|
|
|
|
A Smarty data object can be created as follows:
|
|
$data = $smarty->createData(); // create root data object
|
|
$data->assign('foo','bar'); // assign variables as usual
|
|
$data->config_load('my.conf'); // load config file
|
|
|
|
$data= $smarty->createData($smarty); // create data object having a parent link to
|
|
the Smarty object
|
|
|
|
$data2= $smarty->createData($data); // create data object having a parent link to
|
|
the $data data object
|
|
|
|
A template object can be created by using the createTemplate method. It has the
|
|
same parameter assignments as the fetch() or display() method.
|
|
Function definition:
|
|
function createTemplate($template, $cache_id = null, $compile_id = null, $parent = null)
|
|
|
|
The first parameter can be a template name, a smarty object or a data object.
|
|
|
|
Examples:
|
|
$tpl = $smarty->createTemplate('mytpl.tpl'); // create template object not linked to any parent
|
|
$tpl->assign('foo','bar'); // directly assign variables
|
|
$tpl->config_load('my.conf'); // load config file
|
|
|
|
$tpl = $smarty->createTemplate('mytpl.tpl',$smarty); // create template having a parent link to the Smarty object
|
|
$tpl = $smarty->createTemplate('mytpl.tpl',$data); // create template having a parent link to the $data object
|
|
|
|
The standard fetch() and display() methods will implicitly create a template object.
|
|
If the $parent parameter is not specified in these method calls, the template object
|
|
is will link back to the Smarty object as it's parent.
|
|
|
|
If a template is called by an {include...} tag from another template, the
|
|
subtemplate links back to the calling template as it's parent.
|
|
|
|
All variables assigned locally or from a parent template are accessible. If the
|
|
template creates or modifies a variable by using the {assign var=foo...} or
|
|
{$foo=...} tags, these new values are only known locally (local scope). When the
|
|
template exits, none of the new variables or modifications can be seen in the
|
|
parent template(s). This is same behavior as in Smarty 2.
|
|
|
|
With Smarty 3, we can assign variables with a scope attribute which allows the
|
|
availablility of these new variables or modifications globally (ie in the parent
|
|
templates.)
|
|
|
|
Possible scopes are local, parent, root and global.
|
|
Examples:
|
|
{assign var=foo value='bar'} // no scope is specified, the default 'local'
|
|
{$foo='bar'} // same, local scope
|
|
{assign var=foo value='bar' scope='local'} // same, local scope
|
|
|
|
{assign var=foo value='bar' scope='parent'} // Values will be available to the parent object
|
|
{$foo='bar' scope='parent'} // (normally the calling template)
|
|
|
|
{assign var=foo value='bar' scope='root'} // Values will be exported up to the root object, so they can
|
|
{$foo='bar' scope='root'} // be seen from all templates using the same root.
|
|
|
|
{assign var=foo value='bar' scope='global'} // Values will be exported to global variable storage,
|
|
{$foo='bar' scope='global'} // they are available to any and all templates.
|
|
|
|
|
|
The scope attribute can also be attached to the {include...} tag. In this case,
|
|
the specified scope will be the default scope for all assignments within the
|
|
included template.
|
|
|
|
|
|
PLUGINS
|
|
=======
|
|
|
|
Smarty3 are following the same coding rules as in Smarty2.
|
|
The only difference is that the template object is passed as additional third parameter.
|
|
|
|
smarty_plugintype_name (array $params, object $smarty, object $template)
|
|
|
|
The Smarty 2 plugins are still compatible as long as they do not make use of specific Smarty2 internals.
|
|
|
|
|
|
TEMPLATE INHERITANCE:
|
|
=====================
|
|
|
|
With template inheritance you can define blocks, which are areas that can be
|
|
overriden by child templates, so your templates could look like this:
|
|
|
|
parent.tpl:
|
|
<html>
|
|
<head>
|
|
<title>{block name='title'}My site name{/block}</title>
|
|
</head>
|
|
<body>
|
|
<h1>{block name='page-title'}Default page title{/block}</h1>
|
|
<div id="content">
|
|
{block name='content'}
|
|
Default content
|
|
{/block}
|
|
</div>
|
|
</body>
|
|
</html>
|
|
|
|
child.tpl:
|
|
{extends file='parent.tpl'}
|
|
{block name='title'}
|
|
Child title
|
|
{/block}
|
|
|
|
grandchild.tpl:
|
|
{extends file='child.tpl'}
|
|
{block name='title'}Home - {$smarty.block.parent}{/block}
|
|
{block name='page-title'}My home{/block}
|
|
{block name='content'}
|
|
{foreach $images as $img}
|
|
<img src="{$img.url}" alt="{$img.description}" />
|
|
{/foreach}
|
|
{/block}
|
|
|
|
We redefined all the blocks here, however in the title block we used {$smarty.block.parent},
|
|
which tells Smarty to insert the default content from the parent template in its place.
|
|
The content block was overriden to display the image files, and page-title has also be
|
|
overriden to display a completely different title.
|
|
|
|
If we render grandchild.tpl we will get this:
|
|
<html>
|
|
<head>
|
|
<title>Home - Child title</title>
|
|
</head>
|
|
<body>
|
|
<h1>My home</h1>
|
|
<div id="content">
|
|
<img src="/example.jpg" alt="image" />
|
|
<img src="/example2.jpg" alt="image" />
|
|
<img src="/example3.jpg" alt="image" />
|
|
</div>
|
|
</body>
|
|
</html>
|
|
|
|
NOTE: In the child templates everything outside the {extends} or {block} tag sections
|
|
is ignored.
|
|
|
|
The inheritance tree can be as big as you want (meaning you can extend a file that
|
|
extends another one that extends another one and so on..), but be aware that all files
|
|
have to be checked for modifications at runtime so the more inheritance the more overhead you add.
|
|
|
|
Instead of defining the parent/child relationships with the {extends} tag in the child template you
|
|
can use the resource as follow:
|
|
|
|
$smarty->display('extends:parent.tpl|child.tpl|grandchild.tpl');
|
|
|
|
Child {block} tags may optionally have a append or prepend attribute. In this case the parent block content
|
|
is appended or prepended to the child block content.
|
|
|
|
{block name='title' append} My title {/block}
|
|
|
|
|
|
PHP STREAMS:
|
|
============
|
|
|
|
(see online documentation)
|
|
|
|
VARIBLE FILTERS:
|
|
================
|
|
|
|
(see online documentation)
|
|
|
|
|
|
STATIC CLASS ACCESS AND NAMESPACE SUPPORT
|
|
=========================================
|
|
|
|
You can register a class with optional namespace for the use in the template like:
|
|
|
|
$smarty->register->templateClass('foo','name\name2\myclass');
|
|
|
|
In the template you can use it like this:
|
|
{foo::method()} etc.
|
|
|
|
|
|
=======================
|
|
|
|
Please look through it and send any questions/suggestions/etc to the forums.
|
|
|
|
http://www.phpinsider.com/smarty-forum/viewtopic.php?t=14168
|
|
|
|
Monte and Uwe
|