lang:php:extension

Table of Contents

About

An extension is a library that is not automatically present during the installation of php.

An extension is also known as module.

How to

Install them

In the PHP - php.ini and php configuration configuration, you need to:

set the location of your extension file
uncomment the extension that you want to load

Example

Extension to load

[PHP]
; for image
extension=gd2
extension=mbstring
extension=pdo_sqlite
extension=openssl

Path to the directory (generally not needed)

; some compilation needs the whole path for the extension dir
; extension_dir = "c:/php-7.2.28-Win32-VC15-x64/ext"
; some compilation (ie apache.dll) does not need the extension dir (ie 7)
; extension_dir = "ext"

Verify that an extension is loaded

at runtime

Use the extension_loaded function. Example for DOM:

$loaded = extension_loaded("libxml");

or the get-loaded-extensions function to get them all

with the cli (List the extension/module)

With the php cli, you can list the modules:

php -m

[PHP Modules]
bcmath
calendar
Core
ctype
date
dom
filter
gd
hash
iconv
json
libxml
mbstring
mysqlnd
openssl
pcre
PDO
pdo_sqlite
Phar
readline
Reflection
session
SimpleXML
SPL
standard
tokenizer
wddx
xdebug
xml
xmlreader
xmlwriter
zip
zlib

[Zend Modules]
Xdebug