apc_fetch returns false, for php upload progress
===

My track script gets the uniq id via post through ajax. i checked the value with var_dump, correct value gets passed.

    $status = apc_fetch('upload_' . $_POST['id']);

Form has the correct input name "APC_UPLOAD_PROGRESS"


Here is my apc config on phpinfo()
let me know if you have any ideas on what i did wrong.


Server is:  Apache/2.2.22 (Unix) mod_ssl/2.2.22 OpenSSL/1.0.0-fips PHP/5.4.3 
			
	Version 	3.1.9
	APC Debugging 	Enabled
	MMAP Support 	Enabled
	MMAP File Mask 	/tmp/apc.WhDjbx
	Locking type 	pthread mutex Locks
	Serialization Support 	php
	Revision 	$Revision: 308812 $
	Build Date 	Jul 10 2012 02:42:33
	apc.cache_by_default	On	On
	apc.canonicalize	On	On
	apc.coredump_unmap	Off	Off
	apc.enable_cli	On On
	apc.enabled	On	On
	apc.file_md5	Off	Off
	apc.file_update_protection	2	2
	apc.filters	no value	no value
	apc.gc_ttl	3600	3600
	apc.include_once_override	Off	Off
	apc.lazy_classes	Off	Off
	apc.lazy_functions	Off	Off
	apc.max_file_size	512M	512M
	apc.mmap_file_mask	/tmp/apc.WhDjbx	/tmp/apc.WhDjbx
	apc.num_files_hint	1024	1024
	apc.preload_path	no value	no value
	apc.report_autofilter	Off	Off
	apc.rfc1867	On	On
	apc.rfc1867_freq	50K	50K
	apc.rfc1867_name	APC_UPLOAD_PROGRESS	APC_UPLOAD_PROGRESS
	apc.rfc1867_prefix	upload_	upload_
	apc.rfc1867_ttl	3600	3600
	apc.serializer	default	default
	apc.shm_segments	1	1
	apc.shm_size	32M	32M
	apc.shm_strings_buffer	4M	4M
	apc.slam_defense	On	On
	apc.stat	On	On
	apc.stat_ctime	Off	Off
	apc.ttl	0	0
	apc.use_request_time	On	On
	apc.user_entries_hint	4096	4096
	apc.user_ttl	0	0
	apc.write_lock	On	On