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-Variable Modifiers {#language.modifiers}
-==================
-
-## Table of contents
-- [capitalize](./language-modifiers/language-modifier-capitalize.md)
-- [cat](./language-modifiers/language-modifier-cat.md)
-- [count_characters](./language-modifiers/language-modifier-count-characters.md)
-- [count_paragraphs](./language-modifiers/language-modifier-count-paragraphs.md)
-- [count_sentences](./language-modifiers/language-modifier-count-sentences.md)
-- [count_words](./language-modifiers/language-modifier-count-words.md)
-- [date_format](./language-modifiers/language-modifier-date-format.md)
-- [default](./language-modifiers/language-modifier-default.md)
-- [escape](./language-modifiers/language-modifier-escape.md)
-- [from_charset](./language-modifiers/language-modifier-from-charset.md)
-- [indent](./language-modifiers/language-modifier-indent.md)
-- [lower](./language-modifiers/language-modifier-lower.md)
-- [nl2br](./language-modifiers/language-modifier-nl2br.md)
-- [regex_replace](./language-modifiers/language-modifier-regex-replace.md)
-- [replace](./language-modifiers/language-modifier-replace.md)
-- [spacify](./language-modifiers/language-modifier-spacify.md)
-- [string_format](./language-modifiers/language-modifier-string-format.md)
-- [strip](./language-modifiers/language-modifier-strip.md)
-- [strip_tags](./language-modifiers/language-modifier-strip-tags.md)
-- [to_charset](./language-modifiers/language-modifier-to-charset.md)
-- [truncate](./language-modifiers/language-modifier-truncate.md)
-- [unescape](./language-modifiers/language-modifier-unescape.md)
-- [upper](./language-modifiers/language-modifier-upper.md)
-- [wordwrap](./language-modifiers/language-modifier-wordwrap.md)
-
-Variable modifiers can be applied to
-[variables](./language-variables.md), [custom
-functions](./language-custom-functions.md) or strings. To apply a modifier,
-specify the value followed by a `|` (pipe) and the modifier name. A
-modifier may accept additional parameters that affect its behavior.
-These parameters follow the modifier name and are separated by a `:`
-(colon). Also, *all php-functions can be used as modifiers implicitly*
-(more below) and modifiers can be
-[combined](./language-combining-modifiers.md).
-
-
-    {* apply modifier to a variable *}
-    {$title|upper}
-
-    {* modifier with parameters *}
-    {$title|truncate:40:"..."}
-
-    {* apply modifier to a function parameter *}
-    {html_table loop=$myvar|upper}
-
-    {* with parameters *}
-    {html_table loop=$myvar|truncate:40:"..."}
-
-    {* apply modifier to literal string *}
-    {"foobar"|upper}
-
-    {* using date_format to format the current date *}
-    {$smarty.now|date_format:"%Y/%m/%d"}
-
-    {* apply modifier to a custom function *}
-    {mailto|upper address="smarty@example.com"}
-
-    {* using  php's str_repeat *}
-    {"="|str_repeat:80}
-
-    {* php's count *}
-    {$myArray|@count}
-
-    {* this will uppercase and truncate the whole array *}
-    <select name="name_id">
-    {html_options output=$my_array|upper|truncate:20}
-    </select>
-
-      
-
-- Modifiers can be applied to any type of variables, including arrays
-    and objects.
-
-    > **Note**
-    >
-    > The default behavior was changed with Smarty 3. In Smarty 2.x, you
-    > had to use an \"`@`\" symbol to apply a modifier to an array, such
-    > as `{$articleTitle|@count}`. With Smarty 3, the \"`@`\" is no
-    > longer necessary, and is ignored.
-    >
-    > If you want a modifier to apply to each individual item of an
-    > array, you will either need to loop the array in the template, or
-    > provide for this functionality inside your modifier function.
-
-    > **Note**
-    >
-    > Second, in Smarty 2.x, modifiers were applied to the result of
-    > math expressions like `{8+2}`, meaning that
-    > `{8+2|count_characters}` would give `2`, as 8+2=10 and 10 is two
-    > characters long. With Smarty 3, modifiers are applied to the
-    > variables or atomic expressions before executing the calculations,
-    > so since 2 is one character long, `{8+2|count_characters}`
-    > gives 9. To get the old result use parentheses like
-    > `{(8+2)|count_characters}`.
-
-- Modifiers are autoloaded from the
-    [`$plugins_dir`](../programmers/api-variables/variable-plugins-dir.md) or can be registered
-    explicitly with the [`registerPlugin()`](../programmers/api-functions/api-register-plugin.md)
-    function. The later is useful for sharing a function between php
-    scripts and smarty templates.
-
-- All php-functions can be used as modifiers implicitly, as
-    demonstrated in the example above. However, using php-functions as
-    modifiers has two little pitfalls:
-
-    -   First - sometimes the order of the function-parameters is not
-        the desirable one. Formatting `$foo` with
-        `{"%2.f"|sprintf:$foo}` actually works, but asks for the more
-        intuitive, like `{$foo|string_format:"%2.f"}` that is provided
-        by the Smarty distribution.
-
-    -   Secondly - if security is enabled, all php-functions that are to
-        be used as modifiers have to be declared trusted in the
-        `$modifiers` property of the security policy. See the
-        [Security](../programmers/advanced-features/advanced-features-security.md) section for details.
-
-See also [`registerPlugin()`](../programmers/api-functions/api-register-plugin.md), [combining
-modifiers](./language-combining-modifiers.md). and [extending smarty with
-plugins](../programmers/plugins.md)