The json_encode
filter returns the JSON representation of a value:
{{ data|json_encode() }}
Note
Internally, Twig uses the PHP json_encode function.
options
: A bitmask of json_encode options ({{
data|json_encode(constant('JSON_PRETTY_PRINT')) }}
)
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https://twig.sensiolabs.org/doc/2.x/filters/json_encode.html