password_needs_rehash()
password_get_info($hash)
show_404($page = '', $log_error = TRUE)
password_verify($password, $hash)
remove_invisible_characters($str[, $url_encoded = TRUE])
function_usable($function_name)
mb_strpos($haystack, $needle[, $offset = 0[, $encoding = NULL]])
mb_substr($str, $start[, $length = NULL[, $encoding = NULL]])
hash_equals($known_string, $user_string)
get_mimes()
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