Adding duplicate values in wpdb->prepare()

Hi can I add a duplicate value in $wpdb->prepare.

I have the following SQL

"SELECT
 id,
 MATCH (content) AGAINST('$search')
FROM table
WHERE MATCH(post_search) AGAINST('$search' IN BOOLEAN MODE)"

to this

$wpdb->prepare("SELECT
 id,
 MATCH (content) AGAINST(%s)
FROM table
WHERE MATCH(post_search) AGAINST(%s IN BOOLEAN MODE)", $search_terms)

Is there a way of doing this without doing this

$search_terms1 = $search开发者_如何学JAVA_terms;
$search_terms2 = $search_terms;


$wpdb->prepare("SELECT
 id,
 MATCH (content) AGAINST(%s)
FROM table
WHERE MATCH(post_search) AGAINST(%s IN BOOLEAN MODE)", $search_terms1, $search_terms2)

Is there a way of doing this without doing this (... duplicating the variable passed)

Not using $wpdb. (Nor with PDO, for that matter.) You could stick to passing the initial variable, though, since it's not passed by reference.

Why not use the same as in SQL:

$wpdb->prepare("SELECT
 id,
 MATCH (content) AGAINST('$search_terms')
FROM table
WHERE MATCH(post_search) AGAINST('$search_terms' IN BOOLEAN MODE)")