829fe39d_ry_for_Unicode_Handling_in_PHP__Details
[Function Name] utf8_int_to_hex [Details] 
Accepts an integer and converts to U+xxxx Unicode representation. Through an optional parameter, you can suggest the preferred format of output i.e. U+xxxx or \uxxxx or unformated hexadecimal.
Portable UTF-8 - A Lightweight Library for Unicode Handling in PHP
Details