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Am running a Centos7 server. This module bcmath wasn't installed,

I installed it yum install php-bcmath.

And it doesn't seem to work. It also doesn't appear in info.php page.

The php version I have is 7.1.12 something.

How do I enable it?

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  • How did you install PHP 7? Commented Dec 18, 2017 at 7:06
  • Followed a guide on digitalocean. But can't seem to find any info how to enable the bcmath module. Commented Dec 18, 2017 at 7:16
  • Which guide? Put simply, it's likely that PHP 7 isn't being installed from a default repository so you need to know the name of the repository (probably php71-). Commented Dec 18, 2017 at 7:20
  • How can I find that out? When I run yum install php-bcmath it says it is installed. Commented Dec 18, 2017 at 7:28
  • 1
    If it's this guide you will be using the IUS repo, so try yum install php71-bcmath. Commented Dec 18, 2017 at 7:36

7 Answers 7

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For reference purposes, on Ubuntu 16.04.5 LTS, with PHP 7.0, we use:

apt-get install php-bcmath
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PHP will be using an additional repository, usually IUS or Remi, so it is likely that you need to install the php71-bcmath package.

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  • Says No package php71-bcmath available. Error: Nothing to do. Commented Dec 18, 2017 at 7:41
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    It says it uses this repository: remi-php71: remi.schlundtech.de Commented Dec 18, 2017 at 7:44
  • Use yum --enablerepo remi.sclundtech.de install php71-bcmath Commented Dec 18, 2017 at 7:48
  • Now it says this: Failed to set locale, defaulting to C Loaded plugins: fastestmirror Error getting repository data for remi.sclundtech.de, repository not found Commented Dec 18, 2017 at 8:01
  • Try yum --enablerepo remi-php71 php71-bcmath` but also refer to the document that you followed to find what repo was set up. Commented Dec 18, 2017 at 8:19
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Sorry for bumping an old post.

The problem was the command yum install php71-bcmath should be

yum install php7.1-bcmath

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The correct command is:

sudo yum install php71-php-bcmath

in case you want to use remi's package https://rpmfind.net/linux/rpm2html/search.php?query=php71-php-bcmath

also after installing it, you probably want to restart apache server if you are running one:

sudo systemctl restart httpd
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If you're using centos on linux, and need to 1st find what exact package applies; then the command you're looking for is: yum search bcmath. This should return you a list of bcmath library applicable.

In my case it was: yum install ea-php72-php-bcmath.x86_64

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For Centos 7 with php7.0

  1. Install CentOS SCLo RH repository:
    yum install centos-release-scl-rh

  2. Install rh-php71-php-bcmath rpm package:
    yum install rh-php71-php-bcmath

  3. Restart Apache
    systemctl restart httpd.service

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correct command is yum install php71w-bcmath

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