* escaping format.
*
* Supported format characters are dDjlNwzWFmMntLoYyaAgGhHiscrU. See the
- * PHP manual for definitions. "o" format character is supported since
- * PHP 5.1.0, previous versions return literal o.
- * There are a number of extensions, which start with "x":
+ * PHP manual for definitions. There are a number of extensions, which
+ * start with "x":
*
* xn Do not translate digits of the next numeric format character
* xN Toggle raw digit (xn) flag, stays set until explicitly unset