php null coalescing operator

The null coalescing operator (??) has been added as syntactic sugar for the common case of needing to use a ternary in conjunction with isset(). It returns its first operand if it exists and is not NULL; otherwise it returns its second operand. Replace : $title = get_sub_field( 'title' ); With : $title = get_sub_field( 'title' ) ?? '';