Installing PHP extension mbstring in PHP 5.6 CentOS 6.8

I am using PHP 5.6 on my centos-release-6-8.el6.centos.12.3.x86_64 server.

I got following error from one of my PHP function.

Fatal error: Call to undefined function mb_detect_encoding() 

So, I tried to install mbstring extension. when I execute

sudo yum install php-mbstring

CLI returns

Package php-mbstring-5.6.25-1.el6.remi.x86_64 already installed and latest version
Nothing to do

And I aslo tried "sudo yum install php56-mbstring" This returns

No package php56-mbstring available. Nothing to do

But still, PHP function giving me that error and there is no 'mbsting' in phpinfo()

I also add the following line to httpd.conf

LoadModule php5_module modules/libphp5.so

Server Restarted

Update:

[~]# php -v
PHP 5.6.22 (cli) (built: Jun 13 2016 11:43:51)
Copyright (c) 1997-2016 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2016 Zend Technologies
[~]# php -m | grep mbstring
[~]# php -i | grep mbstring

Nothing returns to php -m | grep mbstring & php -i | grep mbstring

[~]# rpm -qil php-mbstring
Name : php-mbstring Relocations: (not relocatable)
Version : 5.6.25 Vendor: Remi Collet
Release : 1.el6.remi Build Date: Wed 31 Aug 2016 18:33:05 BST
Install Date: Mon 05 Sep 2016 16:26:05 BST Build Host: builder.remirepo.net
Group : Development/Languages Source RPM: php-5.6.25-1.el6.remi.src.rpm
Size : 2856446 License: PHP and LGPLv2 and BSD and OpenLDAP
Packager :
URL :
/etc/php-zts.d/20-mbstring.ini
/etc/php.d/20-mbstring.ini
/usr/lib64/php-zts/modules/mbstring.so
/usr/lib64/php/modules/mbstring.so
/usr/share/doc/php-mbstring-5.6.25
/usr/share/doc/php-mbstring-5.6.25/libmbfl_LICENSE
/usr/share/doc/php-mbstring-5.6.25/oniguruma_COPYING
/usr/share/doc/php-mbstring-5.6.25/ucgendat_LICENSE
[~]# rpm -qa 'php*'
php-pecl-zip-1.13.4-1.el6.remi.5.6.x86_64
php-pecl-jsonc-1.3.10-1.el6.remi.5.6.x86_64
php-mbstring-5.6.25-1.el6.remi.x86_64
php-common-5.6.25-1.el6.remi.x86_64

11

1 Answer

Installing PHP extensions/modules via RPM will install the library files into /usr/lib64/php/modules/. Running php -i |grep ^extension_dir shows the extension directory that is currently configured.

An extension directory of /usr/local/lib/php/extensions/no-debug-non-zts-20131226 indicates that at some stage in the past, PHP was installed from source and that a php.ini file relating to this source installation is currently being used instead of the /etc/php.ini provided by the php-common package.

To solve this problem, you should remove the remnants of this source installation. Unfortunately, the Makefile provided with PHP source code doesn’t include an uninstall target so you can’t simply run make uninstall. I’d suggest using the find command to track down these files by their modification date.

2

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