如何在CentOS 6.7的PHP 5.6.13中启用pthreads？

Question

I have PHP 5.6.13 installed at CentOS 6.7 through IUS repositories. This is the output of php -v command:

# php -v
PHP 5.6.13 (cli) (built: Sep  3 2015 11:54:03)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies
    with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2015, by Zend Technologies
    with Xdebug v2.3.3, Copyright (c) 2002-2015, by Derick Rethans

For install and enable pthreads I have follow this steps:

1. Search the proper packages:

   # yum search pthreads
   ================================= N/S Matched: pthreads ===============================
   mingw32-winpthreads-static.noarch : Static version of the MinGW Windows pthreads library
   mingw64-winpthreads-static.noarch : Static version of the MinGW Windows pthreads library
   php55u-pecl-pthreads-debuginfo.x86_64 : Debug information for package php55u-pecl-pthreads
   php56u-pecl-pthreads-debuginfo.x86_64 : Debug information for package php56u-pecl-pthreads
   mingw32-winpthreads.noarch : MinGW pthread library for the win32 target
   mingw64-winpthreads.noarch : MinGW pthread library for the win64 target
   openblas-threads.i686 : An optimized BLAS library based on GotoBLAS2, pthreads version
   openblas-threads.x86_64 : An optimized BLAS library based on GotoBLAS2, pthreads version
   php55u-pecl-pthreads.x86_64 : Threading API
   php56u-pecl-pthreads.x86_64 : Threading API
   

2. Install the package:

   #yum install php56u-pecl-pthreads.x86_64
   
   Resolving Dependencies
   --> Running transaction check
   ---> Package php56u-pecl-pthreads.x86_64 0:2.0.10-2.ius.el6 will be installed
   --> Finished Dependency Resolution
   
   Dependencies Resolved
   =======================================================================================================================================================================================================================================
    Package                                                         Arch                                              Version                                                        Repository                                      Size
   =======================================================================================================================================================================================================================================
   Installing:
    php56u-pecl-pthreads                                            x86_64                                            2.0.10-2.ius.el6                                               ius                                             71 k
   
   Transaction Summary
   =======================================================================================================================================================================================================================================
   Install       1 Package(s)
   

3. Locate where the .so did go:

   #locate pthreads.so
   /usr/lib64/php-zts/modules/pthreads.so
   

4. Enable at /etc/php.ini by trying each of the following lines:

   extension=pthreads.so
   extension=/usr/lib64/php-zts/modules/pthreads.so
   zend_extension=pthreads.so
   zend_extension=/usr/lib64/php-zts/modules/pthreads.so
   

5. Restarted Apache and find for the module

   # php -m | grep pthreads
   Failed loading /usr/lib64/php-zts/modules/pthreads.so:  /usr/lib64/php-zts/modules/pthreads.so: undefined symbol: core_globals_id
   

And all the time it fails with the message above. What I am doing wrong?

Note: I have notice by running phpinfo() that Thread Safety is disabled, do I need this enabled in order to properly load the library?

Answer 1

For some reason there is two different Versions, the one you installed which cause a conflict with your PHP version. Mismatched compile options used with pthreads.so compared with those used to build PHP itself.

php56u-pecl-pthreads.x86_64 0:2.0.10-2.ius.el6

You should remove and install everything from the same source/version. That's only thing i could think of.

EDIT: you could try this... pthreads using php+zts rpms on centos