Replaces

Hi there,
While I haven't actually looked at the source code for PHP5 recently, I would assume that str_replace had the least performance toll as it is a far simpler function. Bear in mind, however, that either preg_replace or ereg_replace may be more suitable (and more efficient) based on your needs. Although in the end you could probably execute each function 100 times a second, so the performance impact of any function will be minimal unless you have to use it quite frequently in your scripts.