[phpa] array_reduce() is broken (again)

This is just a heads up for people using array_reduce().

The bug is closely related to or in array_reduce() and crashes
4.3.0-dev as well. I had similar problems with 4.0.6 with busted array
functions, and they went away in 4.0.7, but there are clearly still
issues so this is just a heads up for people. The stack trace is below
for any php folks interested in investigating. PHP also emitted a
message at one point saying that it had a problem with the callback
function, even though it was clearly defined, so that was curious. I'll
drop a note into the bugs list too.

Program received signal SIGSEGV, Segmentation fault.
call_user_function_ex (function_table=0x824d198, object_pp=0x0,
    function_name=0x19, retval_ptr_ptr=0xbfff9ef8, param_count=2,
    params=0xbfff9efc, no_separation=0, symbol_table=0x0)
    at /usr/local/src/php-4.3.0dev/Zend/zend_execute_API.c:403
403             if (function_name->type==IS_ARRAY) { /* assume
array($obj, $name
) couple */
(gdb) where
#0  call_user_function_ex (function_table=0x824d198, object_pp=0x0,
    function_name=0x19, retval_ptr_ptr=0xbfff9ef8, param_count=2,
    params=0xbfff9efc, no_separation=0, symbol_table=0x0)
    at /usr/local/src/php-4.3.0dev/Zend/zend_execute_API.c:403
#1  0x813c4d4 in zif_array_reduce (ht=3, return_value=0x838aa44,
this_ptr=0x0,
    return_value_used=1)
    at /usr/local/src/php-4.3.0dev/ext/standard/array.c:3020
#2  0x80a9e76 in execute (op_array=0x83ae350)
    at /usr/local/src/php-4.3.0dev/Zend/zend_execute.c:1598
#3  0x80a9fdb in execute (op_array=0x83ad068)
    at /usr/local/src/php-4.3.0dev/Zend/zend_execute.c:1638

etc.




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