ereg_replace, preg_replace and PHP 5.3.0

Question

Possible Duplicates:
Changing ereg_replace to equivalent preg_replace
Converting ereg expressions to preg

Can anyone show me the equivalent of :

ereg_replace("\n#[^\n]*\n", "\n", $sql)

in preg_replace

Thanks

Answer 1

All you need in this case is delimiters (here /):

preg_replace("/\n#[^\n]*\n/", "\n", $sql)

Also read about the difference of PCRE from POSIX.

Answer 2

preg_replace("~\n#[^\n]*\n~", "\n", $sql);