Re: STUCK : String Comaparison

Hi Ron, Also in PHP a string is actually an array of characters. Maybe you can pick out each character and compared it to the character in the same position of the known string! Example: // Get the first character of a string $str = 'This is a test.'; $first = $str{0}; // Get the third character of a string $third = $str{2}; Cheers, RICO On Thursday 01 April 2004 14:59, Ron.Herhuth@tatumpartners.com wrote: > I may be just over thinking this but I'm stuck trying to figure out a > solution that has to deal with comparing a series of dynamic strings to a > known string. The strings will be 8 characters long and each character > will be either a zero or a 1. What I need to do is to compare the dynamic > strings with the known and if each of the 1 characters in the dynamic > string aligns with the 1 characters in the known string it will throw a > flag. The dynamic string does NOT need to contain all of the 1 characters > that the known string does, just that the ones that it contains align. > > Examples: > > Known: > 10100010 > > Dynamic: > 00100000 Throws flag because both strings contain a 1 in position 3 > 01100000 Doesn't throw flag because there is a 1 in position 2 > 10100000 Throws a flag because the 1s in position 1 and 3 align > 10110000 Doesn't throw a flag because of the 1 in position 4 > > I was able to create a function that matches the entire string but I lost > it when trying to deal with partial matches. Does anyone have a potential > solution for such a beast? I appreciate any input you might be able to > offer... > > Thanks, > Ron