iPhone: Get Random String Function



- (NSString *) getRandomString {

    NSString *letters = @"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
    int stringLength = 5;

    NSMutableString *randomStr = [NSMutableString stringWithCapacity: stringLength];

    for ( int i = 0; i < stringLength; i++ ) {
        [randomStr appendFormat: @"%C", [letters characterAtIndex: arc4random() % [letters length]]];
    }

    NSLog(@"Random String: %@", randomStr);

    return randomStr;
}

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