HeadMeta Templating Extension
The HeadMeta templating extension extends Placeholder Templating Extension
The HTML <meta>
element is used to provide meta information about your HTML document -- typically keywords,
document character set, caching pragmas, etc. Meta tags may be either of the http-equiv
or name
types,
must contain a content
attribute, and can also have either of the lang
or scheme
modifier attributes.
The HeadMeta helper supports the following methods for setting and adding meta tags:
-
appendName($keyValue, $content, $conditionalName)
-
offsetSetName($index, $keyValue, $content, $conditionalName)
-
prependName($keyValue, $content, $conditionalName)
-
setName($keyValue, $content, $modifiers)
-
appendHttpEquiv($keyValue, $content, $conditionalHttpEquiv)
-
offsetSetHttpEquiv($index, $keyValue, $content, $conditionalHttpEquiv)
-
prependHttpEquiv($keyValue, $content, $conditionalHttpEquiv)
-
setHttpEquiv($keyValue, $content, $modifiers)
-
appendProperty($property, $content, $modifiers)
-
offsetSetProperty($index, $property, $content, $modifiers)
-
prependProperty($property, $content, $modifiers)
-
setProperty($property, $content, $modifiers)
The $keyValue
item is used to define a value for the name
or http-equiv
key; $content
is the value for
the content
key, and $modifiers
is an optional associative array that can contain keys for lang
and/or scheme
.
You may also set meta tags using the headMeta()
helper method, which has the following signature:
headMeta($content, $keyValue, $keyType = 'name', $modifiers = [], $placement = 'APPEND')
.
$keyValue
is the content for the key specified in $keyType
, which should be either name
or http-equiv
.
$placement
can be SET
(overwrites all previously stored values), APPEND
(added to end of stack), or PREPEND
(added to top of stack).
HeadMeta overrides each of append()
, offsetSet()
, prepend()
, and set()
to enforce usage of the special methods as
listed above. Internally, it stores each item as a stdClass
token, which it later serializes using the itemToString()
method. This allows you to perform checks on the items in the stack, and optionally modify these items by simply
modifying the object returned.
Basic Usage
You may specify a new meta tag at any time. Typically, you will specify client-side caching rules or SEO keywords.
For instance, if you wish to specify SEO description, you'd be creating a meta name tag with the name 'keywords' and the content the keywords you wish to associate with your page:
{# setting meta description #}
{% do pimcore_head_meta().appendName('description', 'My SEO description for my awesome page') %}
{# setting open graph tags #}
{% do pimcore_head_meta().setProperty('og:title', 'my article title') %}
{% do pimcore_head_meta().setProperty('og:type', 'article') %}
{# setting content type and character set #}
{% do pimcore_head_meta().appendHttpEquiv('Content-Type', 'text/html; charset=UTF-8').appendHttpEquiv('Content-Language', 'en-US') %}
When you're ready to place your meta tags in the layout, simply echo the helper:
{{ pimcore_head_meta() }}