Home › Forums › ACF PRO › get_field('field')['subfield'] vs get_field('field_subfield') › Reply To: get_field('field')['subfield'] vs get_field('field_subfield')
so ACF gets the entire group field as an array
is simply returning one element of that returned array. So yes, this could create extra work if you do not want to get the entire group and all of its sub fields.
Basically what you are doing is a shortcut for
$array = get_field('group_field'); value = $array['sub_field'];
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