encoding functions returns non-empty-string

Author: staabm

stubs/core.stub

@@ -47,3 +47,23 @@ function highlight_string($var, bool $return = false) {}
  * @return ($return is true ? string : true)
  */
 function print_r($var, bool $return = false) {}
+
+/**
+ * @return ($string is non-empty-string ? non-empty-string : string)
+ */
+function sodium_bin2base64(string $string, int $id): string {}
+
+/**
+ * @return ($string is non-empty-string ? non-empty-string : string)
+ */
+function sodium_bin2hex(string $string): string {}
+
+/**
+ * @return ($string is non-empty-string ? non-empty-string : string)
+ */
+function base64_encode(string $string) : string {}
+
+/**
+ * @return ($string is non-empty-string ? non-empty-string : string)
+ */
+function bin2hex(string $string): string {}