Search "IN BOOLEAN MODE" Question?

[iceman2g]

I'm using this code to search for keywords.

mysql_query("SELECT *, MATCH(keyword) AGAINST ('$keyword' IN BOOLEAN MODE)  

 FROM comment_library WHERE MATCH(keyword) AGAINST ('$keyword' IN BOOLEAN MODE)") or die ("Error ".mysql_error());

However it's doesn't seem to be working.

I'm getting this error:

You have an error in your SQL syntax near 'BOOLEAN MODE) FROM comment_library WHERE MATCH(keyword) AGAINST ('dumb' IN BOOLE' at line 1

What can you see that may be the cause of this?

[devinemke]

mysql_query("SELECT * FROM comment_library WHERE MATCH (keyword) AGAINST ('$keyword' IN BOOLEAN MODE)") or die(mysql_error());

please note that you must have mySQL version 4.0.1 or higher to use this syntax

[iceman2g]

Is there anyway to perform a search similar to this one in a version lower than 4.0.1.