--- Reuben D. Budiardja wrote:I like the way you encode things like $ in php.
I did strive for that. But whatever character I choose, the problem
remains that we can't guarantee that it's going ot be only used as
deliminater, since the deliminated string is an input from user. So
the problem remains.
Well, just to point out, your delimiter can be anything, including:
)[EMAIL PROTECTED]&*(donotusethisstringofcharactersinanything(*&[EMAIL PROTECTED])
Of course, at some point, that method of playing with probability becomes unrealistic, and it is imperfect.
John's suggestion of URL encoding is likely your best bet. Given your string:
$foo:$bar:$blah
Make that instead:
urlencode($foo) . '&' . urlencode($bar) . '&' . urlencode($blah)
Then you can use & as your delimiter and be guaranteed that it does not exist within each string. It is also easy to recover the original strings, and since you are using PHP functions, there is less code to write (always a big plus).
Hope that helps.
Chris
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$ = delimiter /$ = $ //$ = /delimiter ///$ = /$ ////$ = //delimiter /////$ = //$ etc. //// = // /$/$ = $$ etc.
To encode the input, just change every / to a // and every $ to a /$. Decoding is the opposite. I don't think that there are any weird situations that can screw this up. You can use the same escape character "/" for any special character, ie /@ or /: if necessary.
Grant
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