Martin: On Thu, Jul 18, 2002 at 03:55:13PM -0400, Martin Clifford wrote: > > Just a performance question, if anyone knows for sure. Within a large > array, would using numerical indices be quicker than associative? I'm > talking about a *noticeable* difference in performance, here.
The difference is marginal. The longer the variable name, the more resources used, but it's not something that you're really going to notice. More important is code readability. But, the difference between turning line wrapping on (~77 columns) in your email client will save significant time for people replying to your posts. > $text = eregi_replace("([abc]+)", "<span style=\"color: > red\">\\1</span>", $text); > > Would this replace any occurences of the pattern with the same pattern > match in red text? I'm not sure exactly how the \\1, \\2, etc. works. It matches sub-patterns, which are the things in parentheses. The number corresponds to the parenthetical order. > $text = eregi_replace("(a)(b)(c)", "\\1", $text); > > Does this output only the 'a'? Exactly. --Dan -- PHP classes that make web design easier SQL Solution | Layout Solution | Form Solution sqlsolution.info | layoutsolution.info | formsolution.info T H E A N A L Y S I S A N D S O L U T I O N S C O M P A N Y 4015 7 Av #4AJ, Brooklyn NY v: 718-854-0335 f: 718-854-0409 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php