How to install php extension package on ubuntu

How to install the PHP extension package on Ubuntu: first open the command window; then install the required PHP extension library through the "apt-get install" command; finally view the installed expansion package through the "php -m" command.

The operating environment of this article: Ubuntu 5.4.0 system, PHP7.1 version, DELL G3 computer

ubuntu installs php extension and Check the extension package

Use ubuntu's software package download and installation tool: apt-get

Enter the following command to install the php extension library mcrypt, curl, gd library, mbstring, simplexml,

apt-get install php-mcrypt;
apt-get install php-curl;
apt-get install php-gd; 
apt-get install php-mbstring;
apt-get install php-simplexml;

php Check the php extension package php -m and then search specifically through the pipe grep

php --ini Check the path information of the php cli command line

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