> -----Original Message-----
> From: Beauford.2002 [mailto:[EMAIL PROTECTED]]
> Sent: 20 December 2002 03:15
> 
> 
> Using switch would be more efficiant as it would stop once a 
> match is made
> (if you use break), but with eleif statements each one is evaluated in
> order.

Not sure that's true -- a sequence of elseifs will also stop evaluating once one of 
the conditions has evaluated to true.  The essential difference is that a switch/case 
structure is a repeated test against a single value (possibly derived from an 
expression), whereas an if ... elseif sequence can test multiple completely disjoint 
conditions.

> $chr = substr($a,$i,1);
> switch (TRUE) {
> 
> case $chr == "" || $chr == "" || $chr == "" || $chr == "":
> $a = str_replace(substr($a,$i,1),"a",$a);
> break;
> 
> case $chr == "" || $chr == "" || $chr == "":
> $a = str_replace(substr($a,$i,1),"e",$a);
> break;
> 
> }

Actually, I'm not sure that's a good example, either!  I'd have thought it was better 
written as:

  switch (substr($a,$i,1)) {

  case "":
  case "":
  case "":
  case "":
    $a = str_replace(substr($a,$i,1),"a",$a);
    break;

  case "":
  case "":
  case "":
    $a = str_replace(substr($a,$i,1),"e",$a);
    break;
 
  }

Cheers!

Mike

---------------------------------------------------------------------
Mike Ford,  Electronic Information Services Adviser,
Learning Support Services, Learning & Information Services,
JG125, James Graham Building, Leeds Metropolitan University,
Beckett Park, LEEDS,  LS6 3QS,  United Kingdom
Email: [EMAIL PROTECTED]
Tel: +44 113 283 2600 extn 4730      Fax:  +44 113 283 3211 

--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php

Reply via email to