How to Inject Variables into all Templates (i.e. Global Variables)
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How to Inject Variables into all Templates (i.e. Global Variables)
Sometimes you want a variable to be accessible to all the templates you use.
This is possible inside your app/config/config.yml file:
- YAML
- XML
- PHP
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# app/config/config.yml
twig:
# ...
globals:
ga_tracking: UA-xxxxx-xNow, the variable ga_tracking is available in all Twig templates:
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<p>The google tracking code is: {{ ga_tracking }}</p>It's that easy! You can also take advantage of the built-in Service Container system, which lets you isolate or reuse the value:
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# app/config/parameters.yml
parameters:
ga_tracking: UA-xxxxx-x- YAML
- XML
- PHP
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# app/config/config.yml
twig:
globals:
ga_tracking: "%ga_tracking%"The same variable is available exactly as before.
More Complex Global Variables
If the global variable you want to set is more complicated - say an object -
then you won't be able to use the above method. Instead, you'll need to create
a Twig Extension and return the
global variable as one of the entries in the getGlobals method.
