When configuring a website to work with different languages on a Linux server, the mbstring extension will need to be installed on the server for the website functionality to work. The mbstring extension is what php uses to parse different language encoding’s. This article will explain how to install the mbstring extension through shell.
Checking for the mbstring through shell
Check your server for the mbstring extension through Linux Command line. Running the following command will display the mbstring information on your server.
[email protected]#### [~]# php -m | grep mbstring
If the results show nothing, then the mbstring is not installed on the server. The next section will explain how to install the mbstring extension through shell with Root access.
Steps to install the mbstring extension
The mbstring extension can be installed through shell by using Easy Apache. The following steps will explain how to install mbstring through Easy Apache.
Important! This is for Virtual Private Servers or Dedicated server with ROOT ACCESS. If you do not have root access, you will need to have support install the mbstring extension for you.
- Shell (SSH) into the server.
- Start a screen session by typing the following.
[email protected]#### [~]# screen -S screenname
You can check the screen by typing the following.
[email protected]#### [~]# screen -ls
There is a Screen on:
1 Socket in /var/run/screen/S-root
The screen session will allow the server to run in the background. This is to prevent the process from being interupted during the recompile process. If the window is closed, The process can still be found on the server. Otherwise, the process will be killed which could break the server.
Type the path for Easy Apache.
[email protected]#### [~]# /scripts/easyapache
When you get the “cPanel update available” box saying “would you like to update now,” select No and hit Enter.
Select Start customizing based on profile and hit Enter.
On the “Please choose which apache to build screen,” leave the selected build.
Select Next step and hit Enter.
Leave the selected php version on the “Please choose which specific PHP version (s) to build” screen.
Select Next Step and hit Enter.
The “Short Options List”will appear.
Select “Exhaustive options list” and hit Enter.
Page down till you see the Mbstring extension listed.
Arrow down to the Mbstring extension and hit the space bar to select the Mbstring.
Select Next Step and hit enter.
Now the server will ask “What do you want to do now?”
!! EXTREMELY IMPORTANT !! IF YOU ARE NOT IN A SCREEN SESSION. DO NOT INTERUPT THE SERVER PROCESS. Interrupting the server process will break the server and will require systems support to fix the apache configuration. If you are not comfortable continuing, please contact support and we can do this for no charge.
Select Save and Build and hit enter.
In the Confirm build screen, Select Yes and hit Enter.
Easy Apache will finally ask to Please acknowledge.
Select “I Understand” and hit Enter.
Apache and PHP will now rebuild. Wait for the process to finish. The process time can vary; however, typically it should take ~10 to 30 minutes. Once the process is finished, check your phpinfo. You should see the Mbstring extension in the phpinfo now.
Thoughts on “Install the mbstring PHP Extension with EasyApache 3”
I get the message
EasyApache3 is not available when EasyApache4 is in effectwhen attempting step 3.
As the error suggests, it seems like you may have an additional version of EasyApache (4) currently running already. Ensure you have closed/ended all instances of EasyApache before proceeding.
If your problems persist, Live Support should be able to help you install mbstring on your server.
Till the step: 3 everything is alright
but hitting :the code: /scripts/easyapache
it gives the error: Perl: warning: setting local failed
With a disordered page a selected in green color:Please choose a profile to load
underneath :as a text :
perl: warning: Setting locale failed.
? Please choose a profile to load ??????????????????????????????????????????????????????????????????????????????????????????????????????
LANGUAGE = (unset),
LC_ALL = (unset),
LC_CTYPE = “UTF-8”,
LANG = “en_US.UTF-8”
are supported and installed on your system.
perl: warning: Falling back to the standard locale (“C”).
Hello M’hamed Hmimid,
Sorry for the problem with the update. If the script is failing, then you need to contact our live support team in order to have that fixed. We have no way to repair a broken easyapache script, if it’s failing. If you’re not a customer, then you will need to contact your technical support team for your hosting service.
If you have any further questions, please let us know.
Very helpful! Thank you so much.
Thanks for nice artical.
I am getting “Fatal error: Call to undefined function mb_strlen() in /home/username/public_html/admin/model/sms/sms.php on line 1″
So I request you to please help me slove this issue.
Will you able to help me?
Thank you for contacting us. We are happy to help, but will need some additional information. This guide in on how to install mbstring
In your error it says mb_strlen is undefined. You must install this function, if it is missing.
This can be installed using EasyApache, I found this solution in the official cPanel forums.
If you have any further questions, feel free to post them below.