Easily with Ruby. "a,b,c,d|d,e,f,g*h,i,j,k|l,m,n,o".split("*") returns an
array of the two strings, which can then be further processed. I believe
that PHP has similar functionality.
-- Yehuda
On 11/22/06, Christopher Jordan <[EMAIL PROTECTED]> wrote:
I agree that it's a matter of opinion. But I've gotta say that I *LOVE*
being able to treat *any* arbitrary string of text as a list (read:
array). Let me give you an example:
<cfset TheList = ListRest(CGI.HTTP_REFERRER,"?")>
<cfloop index="i" from="1" to="#ListLen(TheList,"&")#">
<cfset ThisItem = ListGetAt(TheList,i,"&")>
<cfif ListFirst(ThisItem,"=") EQ "numPageID">
<cfset MyNumPageID = ListLast(ThisItem,"=")>
</cfif>
</cfloop>
This code allows me to treat one string of characters (the http_referrer
in this case) as three different arrays. I didn't have to create an
array out of any of it. The very powerful "List" functions allow me to
accomplish this, and CF handles the conversion to arrays eternally. This
is *not* to say that I can't create and manipulate arrays directly, and
that I *have to* use lists instead of arrays, that's just not true. I
can use the ArrayNew() or StructNew() functions to create arrays and
structures that I can easily reference and manipulate.
Er, you are aware that you can reference strings as arrays in PHP, or if
needed convert a string to a real array in one line, right?
for ($i=0; $i < strlen($string); ++$i) {
print $string[$i] . "\n";
}
foreach (explode($string) as $char) {
print $char . "\n";
}
How do you tell PHP what the list delimiter is? In ColdFusion I can take
a list like this:
<cfset str = "a,b,c,d|d,e,f,g*h,i,j,k|l,m,n,o">
I can then turn around and get the first element based on the asterisk
being the delimiter and then treat the result (a,b,c,d|d,e,f,g) as a new
list who's delimiter is the pipe and then end up with last list whose
delimiter is the comma.
<cfloop index="i" from ="1" to="#ListLen(str, '*')#">
<cfset str2 = ListGetAt(str, i, "*")>
<cfloop index="n" from="1" to="#ListLen(str2, '|')#">
<cfset str3 = ListGetAt(str2, n, "*")>
<cfloop index="j" from="1" to="#ListLen(str3)#">
<!--- do some stuff with the innermost elements of the
list --->
</cfloop>
</cfloop>
</cfloop>
Can you do that in php?
Cheers,
Chris
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--
Yehuda Katz
Web Developer | Wycats Designs
(ph) 718.877.1325
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