This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change in a future release of PHP without notice. Be warned and use this function at your own risk.
Convert numeric string reference of string str in specified block to character. It returns converted string.
array is array to specifies code area to convert.
encoding is character encoding. If it is omitted, internal character encoding is used.
Example 1. convmap example
See also: mb_encode_numericentity().