> -----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
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