character-arrays – Tarik Billa

When should std::string be used over character arrays?

September 26, 2023 by Tarik

const char* is a throwback to C. I’d say that in decent C++, about the only use for it is in extern “C” APIs. std::string has a number of advantages: It provides a constant-time size() function. Discovering the length of a const char* takes linear time. It is guaranteed to be valid. A const char* … Read more

PHP – iterate on string characters

November 16, 2022 by Tarik

Use str_split to iterate ASCII strings (since PHP 5.0) If your string contains only ASCII (i.e. “English”) characters, then use str_split. $str=”some text”; foreach (str_split($str) as $char) { var_dump($char); } Use mb_str_split to iterate Unicode strings (since PHP 7.4) If your string might contain Unicode (i.e. “non-English”) characters, then you must use mb_str_split. $str=”μυρτιὲς δὲν … Read more