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Change PHP Version on Linux

PHP upgrade

If you use Websoft9 LAMP/LNMP runtime, upgrade PHP by these steps:

e.g: PHP5.6 to PHP7.0

  1. Connect your Server and run these commands

    # disable the old PHP repo
    yum-config-manager --disable remi-php56

    # enable the target PHP repo
    yum-config-manager --enable remi-php70

    # Upgrade it
    yum update -y
  1. Check the PHP version after upgrading
    php -v

PHP downgrade

e.g: PHP7.0 to PHP5.6

# disable the old PHP repo
yum-config-manager --disable remi-php70

# enable the target PHP repo
yum-config-manager --enable remi-php56

# uninstall all PHP installed packages
yum remove php-* -y

# Install target PHP and modules
yum -y install php-pecl-imagick php php-mysql php-common php-gd php-mbstring php-mcrypt php-devel php-xml php-pdo php-bcmath php-pear php-opcache php-ldap php-odbc php-xmlrpc php-json php-mysqlnd php-pdo php-pdo_dblib php-recode php-snmp php-soap php-pecl-zip php-curl php-imap

# Install other useful PHP packages by pear
pear install Mail
pear install net_smtp

Change PHP Version on Windows

Open the PHP Manager at IIS, change PHP version is very easy:

Configure PHP

You can choose one of the options below to configure PHP:

  • php.ini: global scope
  • .htaccess: site scope

Web Framework





Yii 2




PHP configuration file: /etc/php.ini
PHP configuration file on Windows:C:\websoft9\php-*\php.ini
PHP Modules configurations directory: /etc/php.d


  • php
  • composer
  • pear


# PHP-FPM On Linux
sudo systemctl start php
sudo systemctl stop php
sudo systemctl restart php
sudo systemctl status php

# PHP On Docker
sudo docker start php
sudo docker stop php
sudo docker restart php
sudo docker stats php