# Download stable release of xdebug from https://xdebug.org/download.php
wget -c "https://xdebug.org/files/xdebug-2.5.3.tgz"
# Extract archive
tar -xf xdebug-2.5.3.tgz
cd xdebug-2.5.3/
# build extension
phpize
./configure
make && make install
Enable the extension:
echo "zend_extension=xdebug.so" > /etc/php/7.1/mods-available/xdebug.ini
ln -sf /etc/php/7.1/mods-available/xdebug.ini /etc/php/7.1/fpm/conf.d/20-xdebug.ini
ln -sf /etc/php/7.1/mods-available/xdebug.ini /etc/php/7.1/cli/conf.d/20-xdebug.ini
service php7.1-fpm restart
# Check it
php -m | grep -i xdebug
# should print:
xdebug
Xdebug
move where ?