UOS（arm64）最初安装的PHP版本是php7.2.3 ，由于漏扫，将php版本先升级到php7.2.24一、具体操作 1.1 下载PHP7.2.24的deb安装包
PHP7.2.24的deb安装包来源：https://launchpad.net/ubuntu/+source/php7.2
将里面的 arm64.deb都下载到本地。
php7.2.24-deb# ls libapache2-mod-php7.2_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-gd_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-phpdbg_7.2.24-0ubuntu0.18.04.10_arm64.deb libphp7.2-embed_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-gmp_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-pspell_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-bcmath_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-imap_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-readline_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-bz2_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-interbase_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-recode_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-cgi_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-intl_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-snmp_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-cli_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-json_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-soap_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-common_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-ldap_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-sqlite3_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-curl_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-mbstring_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-sybase_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-dba_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-mysql_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-tidy_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-dev_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-odbc_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-xml_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-enchant_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-opcache_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-xmlrpc_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-fpm_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-pgsql_7.2.24-0ubuntu0.18.04.10_arm64.deb php7.2-zip_7.2.24-0ubuntu0.18.04.10_arm64.deb1.2 卸载旧的php7.2.3
#查看已安装的php ,然后复制粘贴卸载即可。 最好执行几次。
apt-cache search php7.2 | awk '{print $1}' | xargs -i echo "apt-get remove --purge {}"
apt-get remove --purge -y php-ds apt-get remove --purge -y php-ps apt-get remove --purge -y php-sass apt-get remove --purge -y php-smbclient apt-get remove --purge -y php-tideways apt-get remove --purge -y php-uploadprogress apt-get remove --purge -y php7.2-bz2 apt-get remove --purge -y php7.2-cli apt-get remove --purge -y php7.2-common apt-get remove --purge -y php7.2-curl apt-get remove --purge -y php7.2-fpm apt-get remove --purge -y php7.2-gd apt-get remove --purge -y php7.2-gmp apt-get remove --purge -y php7.2-json apt-get remove --purge -y php7.2-ldap apt-get remove --purge -y php7.2-mbstring apt-get remove --purge -y php7.2-mysql apt-get remove --purge -y php7.2-opcache apt-get remove --purge -y php7.2-pgsql apt-get remove --purge -y php7.2-readline apt-get remove --purge -y php7.2-sqlite3 apt-get remove --purge -y php7.2-xml apt-get remove --purge -y php7.2-zip1.3 安装php7.2.24
#有的deb可能会安装失败，但不会影响总体 cd /php7.2.24-deb dpkg -i *.deb二、升级PHP后，web页面的排错 2.1 需要添加金仓kdb配置
unzip pdo_for_php-7.2.0.zip -d /usr/lib/php/20170718/ echo "extension=pdo_kdb.so" >> /etc/php/7.2/mods-available/pdo.ini ln -s /usr/lib/x86_64-linux-gnu/libssl.so.1.1 /usr/lib/x86_64-linux-gnu/libssl.so.6 ln -s /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1 /usr/lib/x86_64-linux-gnu/libcrypto.so.6 ln -s /usr/lib/x86_64-linux-gnu/libssl.so.1.1 /usr/lib/x86_64-linux-gnu/libssl.so.10 ln -s /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1 /usr/lib/x86_64-linux-gnu/libcrypto.so.10 #检查是否有pdo_kdb扩展 php -m /etc/init.d/php-fpm restart nginx -s reload2.2 访问页面 502 bad Gateway
根据nginx日志 ，有php-fpm，但没有对应端口。 看样子卸载，安装新PHP后，还要做些操作。
排错巡检：查看nginx 、php 、对应启动的端口。
发现没有9000端口， 他nginx通过9000端口与php页面交互。
2022/02/11 15:38:42 [error] 485#485: *4228 connect() failed (111: Connection refused) while connecting to upstream, client: 192.168.2.28, server: 192.168.2.28, request: "GET / HTTP/1.0", upstream: "fastcgi://127.0.0.1:9000", host: "192.168.2.28" 661 2022/02/11 15:38:43 [error] 485#485: *4231 connect() failed (111: Connection refused) while connecting to upstream, client: 192.168.2.28, server: 192.168.2.28, request: "GET / HTTP/1.0", upstream: "fastcgi://127.0.0.1:9000", host: "192.168.2.28" 662 2022/02/11 15:38:44 [error] 485#485: *4234 connect() failed (111: Connection refused) while connecting to upstream, client: 192.168.2.28, server: 192.168.2.28, request: "GET / HTTP/1.0", upstream: "fastcgi://127.0.0.1:9000", host: "192.168.2.28" 663 2022/02/11 15:38:45 [error] 485#485: *4237 connect() failed (111: Connection refused) while connecting to upstream, client: 192.168.2.28, server: 192.168.2.28, request: "GET / HTTP/1.0", upstream: "fastcgi://127.0.0.1:9000", host: "192.168.2.28" 664 2022/02/11 15:41:06 [error] 485#485: *4239 connect() failed (111: Connection refused) while connecting to upstream, client: 127.0.0.1, server: 192.168.2.28, request: "G ET /IT_home/IT_abnormalNotice.php?id=1644303665273225687 HTTP/1.0", upstream: "fastcgi://127.0.0.1:9000", host: "localhost"
处理方法：
参考：http://www.manongjc.com/article/25049.html 《ubuntu php7.2 fpm-php 未监听9000端口问题》
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