In PHP we can check if a key exists in an array by using the function array_key_exists()
.
In the Twig templating language we can check if an variable or an object's property exists simply by using an if
statement, like this:
{% if app.user %}
do something here
{% else %}
do something else
{% endif %}
But how do we check if a key of an array exists using Twig? I tried {% if array.key %}
, but it gives me an error:
Key "key" for array with keys "0, 1, 2, 3...648" does not exist
As one of the primary ways of passing data into a template is using arrays, it seems like there should be some way of doing this. Any thoughts?
Twig example:
{% if array.key is defined %}
// do something
{% else %}
// do something else
{% endif %}