Description:
------------
PHP has to have functions to serialize/unserialize session data,
but those functions aren't available to use.

There is one unserialize function in comment's of unserialize
but i would like to see those two functions in php itself.


Reproduce code:
---------------
And BTW the function is by eoin at joy dot ucc dot ie:
<?php
function unserialize_session_data( $serialized_string ) {
    $variables = array(  );
    $a = preg_split( "/(\w+)\|/", $serialized_string, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE );
    for( $i = 0; $i < count( $a ); $i = $i+2 ) {
        $variables[$a[$i]] = unserialize( $a[$i+1] );
    }
    return( $variables );
}

Expected result:
----------------
I would like to see those functions

Actual result:
--------------
Didn't find them.