preg_replace with two replacments

Question

I have a sentence in the DB for example:

His $name$ is $Luis$

Now, I want to replace the $..$ in tags (< b >), for something like:

His <b>name</b> is <b>Luis</b>

How can I do it with preg_replace? I tried to do simply:

$replace[0] = '<b>';
$replace[1] = '</b>';
preg_replace('/[$]/', $replace, $string);

But doesn't work.

Answer 1

preg_replace( '/\$(.*?)\$/', '<b>\1</b>', $string );

Answer 2

This will solve your problem:

$source = 'His $name$ is $Luis$';
$result = preg_replace('/\$(.*?)\$/', '<b>$1</b>', $source);