PHP extensions

meetdilip

Hi, forgive me if it is too basic

I have a VPS with Ubuntu 18.04 -LAMP set up. How to enable the required PHP extensions through SSH ? Or any other method available ? Thanks.

[deleted]

meetdilip hi. You can do that by issuing the below commands as the cli prompt

sudo apt install php-imap (note that IMAP is an example and not actually a required PHP extension)

Also don't forget sudo a2enmod rewrite as this is required for rewrite to work if it's not already enabled

meetdilip

[deleted] Also don't forget sudo a2enmod rewrite as this is required for rewrite to work if it's not already enabled

Thanks. Is this mod_rewrite ? I think I used a guide somewhere to do it. I will check again. :bow

meetdilip

Tried now

$ sudo apt install php-openssl
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package php-openssl

meetdilip

Same here. I think others are working

$ sudo apt install php-pdo_mysql
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package php-pdo_mysql

[deleted]

Try it with php7* so for example sudo apt install php7*-openssl

meetdilip

I got this

$ sudo apt install php7*-openssl
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package php7*-openssl
E: Couldn't find any package by glob 'php7*-openssl'
E: Couldn't find any package by regex 'php7*-openssl

rob006

Openssl should already be available in PHP, you don't need to install any additional packages. For pdo_mysql it should be something like apt install php-pdo-mysql. You may need php-pdo too, but it should be automatically installed as dependency.

meetdilip

I upgraded to 7.4 . How can I check whether all required PHP extensions are enabled ?

meetdilip

I tried to install them one by one. Only these 3 got error

$ sudo apt install php-dom
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package php-dom is a virtual package provided by:
  php8.0-xml 8.0.0-1+ubuntu18.04.1+deb.sury.org+1
  php7.4-xml 7.4.13-1+ubuntu18.04.1+deb.sury.org+1
  php7.3-xml 7.3.24-3+ubuntu18.04.1+deb.sury.org+1
  php7.2-xml 7.2.34-8+ubuntu18.04.1+deb.sury.org+1
  php7.1-xml 7.1.33-24+ubuntu18.04.1+deb.sury.org+1
  php7.0-xml 7.0.33-37+ubuntu18.04.1+deb.sury.org+1
  php5.6-xml 5.6.40-38+ubuntu18.04.1+deb.sury.org+1
You should explicitly select one to install.

E: Package 'php-dom' has no installation candidate



$ sudo apt install php-openssl
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package php-openssl


$ sudo apt install php-pdo_mysql
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package php-pdo_mysql

meetdilip

Tried this @katos

$ sudo apt-get install -y php7.4-xml
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following package was automatically installed and is no longer required:
  grub-pc-bin
Use 'sudo apt autoremove' to remove it.
The following NEW packages will be installed:
  php7.4-xml
0 upgraded, 1 newly installed, 0 to remove and 47 not upgraded.
Need to get 95.6 kB of archives.
After this operation, 407 kB of additional disk space will be used.
Get:1 http://ppa.launchpad.net/ondrej/php/ubuntu bionic/main amd64 php7.4-xml amd64 7.4.13-1+ubuntu18.04.1+deb.sury.org+1 [95.6 kB]
Fetched 95.6 kB in 1s (129 kB/s)
Selecting previously unselected package php7.4-xml.
(Reading database ... 150673 files and directories currently installed.)
Preparing to unpack .../php7.4-xml_7.4.13-1+ubuntu18.04.1+deb.sury.org+1_amd64.deb ...
Unpacking php7.4-xml (7.4.13-1+ubuntu18.04.1+deb.sury.org+1) ...
Setting up php7.4-xml (7.4.13-1+ubuntu18.04.1+deb.sury.org+1) ...

Creating config file /etc/php/7.4/mods-available/dom.ini with new version

Creating config file /etc/php/7.4/mods-available/simplexml.ini with new version

Creating config file /etc/php/7.4/mods-available/xml.ini with new version

Creating config file /etc/php/7.4/mods-available/xmlreader.ini with new version

Creating config file /etc/php/7.4/mods-available/xmlwriter.ini with new version

Creating config file /etc/php/7.4/mods-available/xsl.ini with new version
Processing triggers for libapache2-mod-php7.4 (7.4.13-1+ubuntu18.04.1+deb.sury.org+1) ...
Processing triggers for php7.4-cli (7.4.13-1+ubuntu18.04.1+deb.sury.org+1) ...

meetdilip

@katos

$ sudo apt-get install apache2 mariadb-server php7.4 libapache2-mod-php7.4 php7.4-common php7.4-mbstring php7.4-xmlrpc php7.4-soap php7.4-mysql php7.4-gd php7.4-xml php7.4-curl php7.4-cli php7.4-zip php7.4-tokenizer wget unzip curl git -y
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'php7.4-common' instead of 'php7.4-tokenizer'
unzip is already the newest version (6.0-21ubuntu1).
unzip set to manually installed.
apache2 is already the newest version (2.4.29-1ubuntu4.14).
curl is already the newest version (7.58.0-2ubuntu3.10).
curl set to manually installed.
git is already the newest version (1:2.17.1-1ubuntu0.7).
git set to manually installed.
wget is already the newest version (1.19.4-1ubuntu2.2).
wget set to manually installed.
libapache2-mod-php7.4 is already the newest version (7.4.13-1+ubuntu18.04.1+deb.sury.org+1).
libapache2-mod-php7.4 set to manually installed.
php7.4 is already the newest version (7.4.13-1+ubuntu18.04.1+deb.sury.org+1).
php7.4-cli is already the newest version (7.4.13-1+ubuntu18.04.1+deb.sury.org+1).
php7.4-cli set to manually installed.
php7.4-common is already the newest version (7.4.13-1+ubuntu18.04.1+deb.sury.org+1).
php7.4-common set to manually installed.
php7.4-curl is already the newest version (7.4.13-1+ubuntu18.04.1+deb.sury.org+1).
php7.4-curl set to manually installed.
php7.4-gd is already the newest version (7.4.13-1+ubuntu18.04.1+deb.sury.org+1).
php7.4-gd set to manually installed.
php7.4-mbstring is already the newest version (7.4.13-1+ubuntu18.04.1+deb.sury.org+1).
php7.4-mbstring set to manually installed.
php7.4-xml is already the newest version (7.4.13-1+ubuntu18.04.1+deb.sury.org+1).
php7.4-zip is already the newest version (7.4.13-1+ubuntu18.04.1+deb.sury.org+1).
php7.4-zip set to manually installed.
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 mariadb-server : Depends: mariadb-server-10.1 (>= 1:10.1.47-0ubuntu0.18.04.1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

katos

meetdilip As discussed on Discord, looks like you're good to go.

meetdilip

katos Shall I go with beta 14 ?

[deleted]

meetdilip yes, unless there's a reason for you to stay on 13, which isn't generally recommended for new installs

meetdilip

Is there any command line to install Composer through SSH ?

katos

meetdilip

curl -sS https://getcomposer.org/installer -o composer-setup.php
sudo php composer-setup.php --install-dir=/usr/local/bin --filename=composer

Then run:
composer to confirm the version

meetdilip

katos

$ composer
   ______
  / ____/___  ____ ___  ____  ____  ________  _____
 / /   / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/
/ /___/ /_/ / / / / / / /_/ / /_/ (__  )  __/ /
\____/\____/_/ /_/ /_/ .___/\____/____/\___/_/
                    /_/
Composer version 2.0.7 2020-11-13 17:31:06

meetdilip

Bottleneck

The PHP extension 'dom' is required.
The PHP extension 'gd' is required.
The PHP extension 'mbstring' is required.