How to install php fileinfo extension

How to install the php fileinfo extension: 1. Find the PHP installation source directory; 2. Parse and use phpize to release the fileinfo module; 3. Compile and install; 4. Restart PHP.

The operating environment of this article: Centos7.6 system, PHP7.3 version, DELL G3 computer

How to install the php fileinfo extension?

LNMP installs the PHP fileinfo extension module

Today, when installing the project on the server (Centos7.6) through # composer install, the following error occurred:

To enable extensions, verify that they are enabled in your .ini files:
     - /etc/php.ini
   You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode.

It means that the php_fileinfo.dll module is not installed in my PHP environment.

Installation is as follows:

1. Find the PHP installation source directory (note that it is not the installation directory)
Many children's shoes may install the original installation after installing PHP. The package has been deleted, or the server was not deployed by itself and I don’t know where to find it. It doesn’t matter. Just query the version through PHP -V and then re-download the corresponding version.
Mine is placed in the /mydata/ directory

2 Parse and use phpize to release the fileinfo module

# cd /mydata/php-7.3.8/ext /fileinfo/

# Execute phpize command analysis (my PHP is installed in /usr/local/php)
# /usr/local/php/bin/phpize

3. Compile and install
# ./configure --with-php-config=/usr/local/php/bin/php-config
As shown in the figure

# make
No error is reported as follows,

# make install

OK The installation is successful and the path is generated For "/usr/local/php/lib/php/extensions/no-debug-non-zts-20180731/"
4. Add to php.ini
# vim /etc/php.ini
Add extension=fileinfo.so to the last line of this file

Restart PHP # /etc/init.d/php-fpm restart
5. Pass # php -m The command can detect which modules are currently installed in PHP

# Just run composer install again.

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