implode

I'm looking for the most elegant way to implode a vector of strings into a string. Below is the solution I'm using now: static std::string& implode(const std::vector<std::string>& elems, char delim, std::string& s) { for (std::vector<std::string>::const_iterator ii = elems.begin(); ii != elems.end(); ++ii) { s += (*ii); if ( ii + 1 != elems.end() ) { s += delim; } } return s; } static std::string implode(const std::vector<std::string>& elems, char delim) { std::string s; return implode(elems, delim, s); } Is there any others out there? Andre Holzner Use boost::algorithm::join(..) : #include

I have a PHP array of numbers, which I would like to prefix with a minus (-). I think through the use of explode and implode it would be possible but my knowledge of php is not possible to actually do it. Any help would be appreciated. Essentially I would like to go from this: $array = [1, 2, 3, 4, 5]; to this: $array = [-1, -2, -3, -4, -5]; Any ideas? Rohit Chopra Simple: foreach ($array as &$value) { $value *= (-1); } unset($value); Unless the array is a string: foreach ($array as &$value) { $value = '-' . $value; } unset($value); An elegant way to prefix array values (PHP 5.3+): $prefixed

Imploding a simple array would look like this $array = array('lastname', 'email', 'phone'); $comma_separated = implode(",", $array); and that would return this lastname,email,phone great, so i might do this instead $array = array('lastname', 'email', 'phone'); $comma_separated = implode("','", $array); $comma_separated = "'".$comma_separated."'"; and now i have what I want a nice pretty csv string 'lastname','email','phone' is there a better way to do this, it feels to me like there should be an optional parameter for implode am I missing something ? No, the way that you're doing it is just