echo - Simple php syntax error, needs fixing -

echo - Simple php syntax error, needs fixing -

i have code can me category_id of item. code:

<?php echo lavada_category_id() ; ?>

i want know how can add together code. within this, want replace number 2 in here;

<?php lavada_query_item("category=2");?>

with:

<?php echo lavada_category_id() ; ?>

i know cannot

<?php lavada_query_item("category=<?php echo lavada_category_id() ; ?>");?>

but how can it?

you need concatenate string this:

<?php lavada_query_item("category=". lavada_category_id() );?>

php echo