Description:
------------
PHP 5.5.7 (cli) (built: Dec 11 2013 20:55:14) 
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2013 Zend Technologies

Server version: Apache/2.2.25 (Unix)
Server built:   Jul 18 2013 19:05:23

I have a problem with register_shutdown_function and headers_list and header.
My script rewrites some headers when register_shutdown_function is called.
Sometimes the script just crashes with a segmentation fault.



Test script:
---------------
I have not been able to write a short example but it tracked the issue down to register_shutdown_fuction

Big Script:
https://github.com/Phhere/webSPELL-4.2.3/tree/modRewrite

Problem is in file src/modrewrite.php. If you comment out line 21 to 26 it works like expected

Actual result:
--------------
Program terminated with signal 11, Segmentation fault.
#0  0x00007f92753832cc in zend_call_function () from /etc/httpd/modules/libphp5.so
(gdb) backtrace
#0  0x00007f92753832cc in zend_call_function () from /etc/httpd/modules/libphp5.so
#1  0x00007f927533b619 in sapi_send_headers () from /etc/httpd/modules/libphp5.so
#2  0x00007f92752bb309 in php_header () from /etc/httpd/modules/libphp5.so
#3  0x00007f9275342f63 in ?? () from /etc/httpd/modules/libphp5.so
#4  0x00007f9275343ff5 in php_output_write () from /etc/httpd/modules/libphp5.so
#5  0x00007f9275347326 in php_output_end_all () from /etc/httpd/modules/libphp5.so
#6  0x00007f92753324e5 in php_request_shutdown () from /etc/httpd/modules/libphp5.so
#7  0x00007f92754432ef in ?? () from /etc/httpd/modules/libphp5.so
#8  0x00000000004375f0 in ap_run_handler ()
#9  0x00000000004379b9 in ap_invoke_handler ()
#10 0x0000000000443f38 in ap_process_request ()
#11 0x0000000000441580 in ?? ()
#12 0x000000000043da40 in ap_run_process_connection ()
#13 0x0000000000448a0f in ?? ()
#14 0x0000000000448e44 in ?? ()
#15 0x0000000000448ee6 in ?? ()
#16 0x0000000000449cc1 in ap_mpm_run ()
#17 0x00000000004239a6 in main ()