下載php8源碼並編譯安裝
wget https://www.php.net/distributions/php-8.0.0.tar.gz
tar xvf php-8.0.0.tar.gz
cd php-8.0.0
./configure --help
apt install pkg-config
apt install libxml2
apt install libxml2-dev
apt install libsqlite3-dev
sudo mkdir /usr/local/php
./configure --prefix=/usr/local/php/ --enable-debug --enable-fpm --with-config-file-path=/usr/local/php/etc/ --with-config-file-scandir=/usr/local/php/etc/php.d/
make
sudo make install
mac編譯php8
根據提示安裝了下libiconv
brew install libiconv
修改安裝命令，加上下面代碼
--with-iconv=/usr/local/opt/libiconv/
mac xdebug編譯(擴展安裝的默認目錄/usr/local/php/lib/php/extensions)
wget https://xdebug.org/files/xdebug-3.0.0.tgz
cd xdebug-3.0.0/xdebug-3.0.0
phpize
./configure --with-php-config=/usr/local/php/bin/php-config
make
sudo make install
Ubuntu系統中開啟HugePages, 然后開啟Opcache的huge_code_pages.
sudo sysctl vm.nr_hugepages=512
cat /proc/meminfo | grep Huge
php8 Opcache JIT配置 添加如下配置到php.ini
zend_extension=opcache.so
opcache.enable=1
opcache.enable_cli=1
opcache.huge_code_pages=1
opcache.file_cache=/tmp
opcache.jit=1205
opcache.jit_buffer_size=64M
Ubuntu徹底刪除PHP7.x的方法
刪除php的相關包及配置
sudo apt autoremove php
刪除關聯
sudo find /etc -name "*php*" |xargs rm -rf
清除dept列表
sudo apt purge `dpkg -l | grep php| awk '{print $2}' |tr "\n" " "`
檢查是否卸載干凈（無返回就是卸載完成）
dpkg -l | grep php7
參考鏈接
https://www.laruence.com/2015/12/04/3086.html //opcache
https://www.laruence.com/2020/06/27/5963.html //jit
https://www.jb51.net/article/144572.htm