{"id":33776,"date":"2026-10-22T16:00:00","date_gmt":"2026-10-22T08:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=33776"},"modified":"2026-10-23T17:47:27","modified_gmt":"2026-10-23T09:47:27","slug":"php-version-upgrade-compatibility-rollback","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/guides\/php-version-upgrade-compatibility-rollback\/","title":{"rendered":"PHP \u7248\u672c\u5347\u7ea7\u524d\u540e\u5fc5\u987b\u68c0\u67e5\u7684\u517c\u5bb9\u6027\u95ee\u9898\u4e0e\u56de\u9000\u65b9\u6848"},"content":{"rendered":"

\"PHP<\/p>\n

\u7f51\u7ad9\u8fd0\u884c\u591a\u5e74\u7a81\u7136\u8981\u5347\u7ea7 PHP \u7248\u672c\uff0c\u6700\u6015\u7684\u4e0d\u662f\u5347\u7ea7\u672c\u8eab\uff0c\u800c\u662f\u5347\u7ea7\u5b8c\u6210\u540e\u9875\u9762\u767d\u5c4f\u3001\u529f\u80fd\u5f02\u5e38\uff0c\u5374\u4e0d\u77e5\u9053\u4ece\u54ea\u91cc\u67e5\u8d77\u3002\u8fd9\u7bc7\u6587\u7ae0\u89e3\u51b3”PHP \u7248\u672c\u5347\u7ea7\u524d\u540e\u5230\u5e95\u8981\u68c0\u67e5\u4ec0\u4e48\u3001\u51fa\u95ee\u9898\u600e\u4e48\u9000\u56de\u53bb”\u7684\u95ee\u9898\uff0c\u5e2e\u52a9\u4f60\u628a\u5347\u7ea7\u4ece\u4e00\u6b21\u5192\u9669\u53d8\u6210\u4e00\u5957\u53ef\u9a8c\u8bc1\u3001\u53ef\u56de\u9000\u7684\u6807\u51c6\u6d41\u7a0b\u3002\u65e0\u8bba\u662f\u8fd0\u884c\u5728\u865a\u62df\u4e3b\u673a<\/a>\u8fd8\u662f VPS<\/a>\uff08\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668<\/a>\uff09\u4e0a\u7684 WordPress \u6216\u81ea\u5efa\u7ad9\u70b9\uff0c\u90fd\u53ef\u4ee5\u6309\u8fd9\u4efd\u6e05\u5355\u64cd\u4f5c\u3002<\/p>\n

\u4e00\u3001\u5347\u7ea7\u524d\uff1a\u5148\u786e\u8ba4\u5f53\u524d\u73af\u5883\u4e0e\u7248\u672c\u5dee\u5f02<\/h2>\n

\u52a8\u624b\u4e4b\u524d\u5148\u5f04\u6e05\u4e24\u4ef6\u4e8b\uff1a\u73b0\u5728\u8dd1\u7684\u662f\u4ec0\u4e48\u7248\u672c\uff0c\u76ee\u6807\u7248\u672c\u548c\u81ea\u5df1\u5dee\u4e86\u51e0\u4e2a\u5927\u7248\u672c\u3002\u8de8\u4e00\u4e2a\u5927\u7248\u672c\uff08\u6bd4\u5982 7.4 \u5230 8.0\uff09\u548c\u8de8\u591a\u4e2a\u5927\u7248\u672c\uff085.6 \u76f4\u63a5\u5230 8.x\uff09\u7684\u98ce\u9669\u5b8c\u5168\u4e0d\u540c\uff0c\u540e\u8005\u51e0\u4e4e\u5fc5\u7136\u78b0\u5230\u5e9f\u5f03\u51fd\u6570\u5927\u9762\u79ef\u62a5\u9519\u3002<\/p>\n

\u5148\u5728\u670d\u52a1\u5668\u4e0a\u786e\u8ba4\u5f53\u524d\u7248\u672c\uff1a<\/p>\n

\nphp -v\n# \u865a\u62df\u4e3b\u673a\u6ca1\u6709 SSH \u65f6\uff0c\u53ef\u5728\u7f51\u7ad9\u6839\u76ee\u5f55\u521b\u5efa\u68c0\u67e5\u6587\u4ef6\n# <?php echo phpversion(); >\n<\/pre>\n
\u786e\u8ba4\u7248\u672c\u540e\uff0c\u91cd\u70b9\u6838\u5bf9\u5b98\u65b9\u7684\u5e9f\u5f03\u6e05\u5355\uff1aPHP 8.0 \u79fb\u9664\u4e86 create_function<\/code>\u3001each()<\/code> \u7b49\u8001\u51fd\u6570\uff1b8.1 \u8d77\u7ed9\u5927\u91cf\u5185\u90e8\u51fd\u6570\u52a0\u5165\u4e86\u975e null \u53c2\u6570\u7684\u8b66\u544a\uff1b8.2 \u628a\u52a8\u6001\u5c5e\u6027\u6807\u8bb0\u4e3a\u5f03\u7528\u3002\u628a\u7248\u672c\u5dee\u5f02\u5217\u6210\u4e00\u5f20\u5bf9\u7167\u8868\uff0c\u5c31\u77e5\u9053\u540e\u9762\u6392\u67e5\u8981\u76ef\u4ec0\u4e48\u3002\u5982\u679c\u7f51\u7ad9\u662f WordPress\uff0c\u53ef\u4ee5\u5148\u5728 WP CLI\uff08WordPress \u547d\u4ee4\u884c\u5de5\u5177\uff09\u91cc\u8dd1\u4e00\u904d\u6838\u5fc3\u548c\u63d2\u4ef6\u7684\u7248\u672c\u5065\u5eb7\u72b6\u51b5\u68c0\u67e5\uff0c\u5f88\u591a\u63d2\u4ef6\u9875\u9762\u4f1a\u76f4\u63a5\u6807\u6ce8”\u517c\u5bb9\u5230 PHP \u51e0”\u3002<\/p>\n
\u4e8c\u3001\u5347\u7ea7\u524d\uff1a\u626b\u63cf\u4ee3\u7801\u91cc\u7684\u517c\u5bb9\u6027\u9690\u60a3<\/h2>\n
\u4eba\u5de5\u7ffb\u4ee3\u7801\u6548\u7387\u592a\u4f4e\uff0c\u7528\u9759\u6001\u5206\u6790\u5de5\u5177\u626b\u63cf\u6574\u4e2a\u9879\u76ee\uff0c\u51e0\u5206\u949f\u5c31\u80fd\u5217\u51fa\u6240\u6709\u7591\u4f3c\u95ee\u9898\u70b9\u3002PHP \u5b98\u65b9\u7684\u517c\u5bb9\u6027\u68c0\u67e5\u5de5\u5177\u652f\u6301\u6307\u5b9a\u76ee\u6807\u7248\u672c\uff1a<\/p>\n
\n# \u5b89\u88c5 PHPCompatibility \u89c4\u5219\u96c6\u540e\u5bf9\u9879\u76ee\u76ee\u5f55\u626b\u63cf\nphpcs -p --standard=PHPCompatibility --runtime-set testVersion 8.1 \/var\/www\/html --extensions=php\n<\/pre>\n
\u626b\u63cf\u7ed3\u679c\u91cc\uff0cERROR<\/code> \u7ea7\u522b\u7684\u9879\u5fc5\u987b\u5728\u5347\u7ea7\u524d\u5904\u7406\uff0cWARNING<\/code> \u53ef\u4ee5\u5217\u89c2\u5bdf\u6e05\u5355\u3002\u9664\u4e86\u4ee3\u7801\u672c\u8eab\uff0c\u8fd8\u8981\u68c0\u67e5\u4e09\u7c7b\u5916\u90e8\u4f9d\u8d56\uff1a\u7b2c\u4e00\u662f\u8001\u7248\u672c\u7b2c\u4e09\u65b9\u5e93\uff0c\u5c24\u5176\u662f\u8fd8\u5728\u7528 each()<\/code>\u3001create_function<\/code> \u7684\u8001\u65e7\u63d2\u4ef6\uff1b\u7b2c\u4e8c\u662f php.ini \u914d\u7f6e\u9879\u5dee\u5f02\uff0c\u6bd4\u5982 8.0 \u8d77\u9ed8\u8ba4\u4e0d\u652f\u6301\u7684\u90e8\u5206\u52a8\u6001\u5c5e\u6027\u5199\u6cd5\uff1b\u7b2c\u4e09\u662f\u6269\u5c55\u662f\u5426\u53ef\u7528\uff0c\u65b0\u7248\u672c\u73af\u5883\u91cc mysql_*<\/code> \u7cfb\u5217\u51fd\u6570\u65e9\u5df2\u79fb\u9664\uff0c\u5fc5\u987b\u786e\u8ba4\u9879\u76ee\u5df2\u6539\u7528 mysqli \u6216 PDO\uff08PHP \u7684\u6570\u636e\u5e93\u62bd\u8c61\u5c42\uff09\u3002\u626b\u63cf\u5b8c\u6210\u540e\u628a\u95ee\u9898\u6e05\u5355\u5b58\u6863\uff0c\u5347\u7ea7\u540e\u9010\u6761\u9500\u53f7\u3002\u4fee\u590d\u4ee3\u7801\u671f\u95f4\u53ef\u4ee5\u987a\u5e26\u5904\u7406\u6027\u80fd\u6b20\u8d26\uff0c\u6bd4\u5982\u53c2\u8003\u8fd9\u7bc7 WordPress \u901f\u5ea6\u4f18\u5316\u6307\u5357<\/a>\uff0c\u628a\u62d6\u6162\u9875\u9762\u7684\u6162\u67e5\u8be2\u548c\u63d2\u4ef6\u95ee\u9898\u4e00\u8d77\u6e05\u6389\uff0c\u907f\u514d\u5347\u7ea7\u540e\u65e7\u95ee\u9898\u63a9\u76d6\u65b0\u7248\u672c\u7684\u6027\u80fd\u6536\u76ca\u3002<\/p>\n
\u4e09\u3001\u5347\u7ea7\u524d\uff1a\u5b8c\u6574\u5907\u4efd\u4e0e\u7070\u5ea6\u9a8c\u8bc1\u73af\u5883<\/h2>\n
\u5907\u4efd\u662f\u56de\u9000\u65b9\u6848\u7684\u5730\u57fa\u3002\u8fd9\u4e00\u6b65\u8981\u505a\u7684\u4e0d\u53ea\u662f\u6587\u4ef6\u5907\u4efd\uff0c\u800c\u662f”\u6587\u4ef6 + \u6570\u636e\u5e93 + \u5f53\u524d PHP \u914d\u7f6e”\u4e09\u6837\u4e00\u8d77\u6253\u5305\uff0c\u5e76\u786e\u8ba4\u80fd\u6062\u590d\uff1a<\/p>\n
\n# \u6253\u5305\u7f51\u7ad9\u6587\u4ef6\ntar -czf site-backup-$(date +%F).tar.gz \/var\/www\/html\n# \u5bfc\u51fa\u6570\u636e\u5e93\nmysqldump -u dbuser -p dbname > db-backup-$(date +%F).sql\n<\/pre>\n
\u5907\u4efd\u5b8c\u6210\u540e\u4e0d\u8981\u76f4\u63a5\u5728\u751f\u4ea7\u73af\u5883\u5347\u7ea7\u3002\u6709\u6761\u4ef6\u7684\u5728\u6d4b\u8bd5\u73af\u5883\u88c5\u4e00\u4efd\u76f8\u540c\u4ee3\u7801\u3001\u5207\u5230\u76ee\u6807 PHP \u7248\u672c\u8dd1\u4e00\u904d\u6838\u5fc3\u6d41\u7a0b\uff1a\u9996\u9875\u3001\u767b\u5f55\u3001\u4e0b\u5355\u6216\u8868\u5355\u63d0\u4ea4\u3001\u540e\u53f0\u4fdd\u5b58\u3002\u5171\u4eab\u865a\u62df\u4e3b\u673a\u7528\u6237\u53ef\u4ee5\u7528\u5b50\u76ee\u5f55\u5efa\u4e00\u5957\u526f\u672c\u6d4b\u8bd5\u3002\u9a8c\u8bc1\u65f6\u6253\u5f00\u9519\u8bef\u663e\u793a\uff0c\u4efb\u4f55 Fatal error<\/code> \u548c Deprecated<\/code> \u63d0\u793a\u90fd\u8bb0\u4e0b\u6765\u3002\u6d4b\u8bd5\u73af\u5883\u8dd1\u4e0d\u901a\u7684\u7248\u672c\u7ec4\u5408\uff0c\u5c31\u4e0d\u8981\u6307\u671b\u751f\u4ea7\u73af\u5883\u80fd\u8499\u6df7\u8fc7\u5173\u3002<\/p>\n
\"\u5347\u7ea7\u524d\u5907\u4efd\u4e0e\u6d4b\u8bd5\u73af\u5883\u9a8c\u8bc1\u914d\u56fe\"<\/p>\n
\u56db\u3001\u5347\u7ea7\u65f6\uff1a\u5207\u6362\u7248\u672c\u5e76\u76ef\u7d27\u9996\u8f6e\u62a5\u9519<\/h2>\n
\u771f\u6b63\u5207\u6362\u65f6\u9009\u4e1a\u52a1\u4f4e\u5cf0\u671f\u3002\u865a\u62df\u4e3b\u673a\u901a\u5e38\u5728\u63a7\u5236\u9762\u677f\u91cc\u76f4\u63a5\u9009\u62e9 PHP \u7248\u672c\uff0cVPS \u4e0a\u5219\u5207\u6362 PHP-FPM\uff08PHP \u8fdb\u7a0b\u7ba1\u7406\u5668\uff09\u7684\u5957\u63a5\u5b57\u7248\u672c\u5e76\u91cd\u542f\u670d\u52a1\uff1a<\/p>\n
\n# VPS \u4e0a\u628a\u7ad9\u70b9\u5207\u5230\u65b0\u7248\u672c PHP-FPM \u540e\u91cd\u8f7d\nsudo systemctl reload php8.1-fpm\n# \u786e\u8ba4\u7f51\u7ad9\u5b9e\u9645\u8fd0\u884c\u7248\u672c\nphp -v\n<\/pre>\n
\u5207\u6362\u5b8c\u6210\u540e\u7acb\u523b\u505a\u4e09\u8f6e\u68c0\u67e5\uff1a\u7b2c\u4e00\u8f6e\u6253\u5f00\u9996\u9875\u548c\u51e0\u4e2a\u6838\u5fc3\u9875\u9762\uff0c\u786e\u8ba4\u6ca1\u6709\u767d\u5c4f\u548c 500 \u9519\u8bef\uff1b\u7b2c\u4e8c\u8f6e\u770b PHP \u9519\u8bef\u65e5\u5fd7\uff0c\u5b9a\u4f4d\u6709\u6ca1\u6709\u5347\u7ea7\u524d\u6ca1\u626b\u5230\u7684\u62a5\u9519\uff1b\u7b2c\u4e09\u8f6e\u8d70\u4e00\u904d\u5b8c\u6574\u4e1a\u52a1\u6d41\u7a0b\uff0c\u6bd4\u5982\u63d0\u4ea4\u4e00\u6b21\u8868\u5355\u3001\u4e0b\u4e00\u7b14\u6d4b\u8bd5\u8ba2\u5355\u3002\u65e5\u5fd7\u4f4d\u7f6e\u4e00\u822c\u5728 \/var\/log\/php*fpm*.log<\/code> \u6216\u4e3b\u673a\u9762\u677f\u7684\u9519\u8bef\u65e5\u5fd7\u5165\u53e3\u3002\u9996\u8f6e\u53d1\u73b0\u7684\u95ee\u9898\u5927\u591a\u662f\u5e9f\u5f03\u51fd\u6570\u8c03\u7528\uff0c\u6309\u62a5\u9519\u6587\u4ef6\u548c\u884c\u53f7\u9010\u6761\u4fee\u590d\u5373\u53ef\u3002\u5982\u679c\u5207\u6362\u540e\u51fa\u73b0\u7684\u662f\u6574\u7ad9 502 \u6216 504\uff0c\u591a\u534a\u4e0d\u662f PHP \u4ee3\u7801\u95ee\u9898\u800c\u662f\u8fdb\u7a0b\u6ca1\u6709\u6b63\u5e38\u63a5\u7ba1\uff0c\u53ef\u4ee5\u5bf9\u7167\u8fd9\u7bc7 Nginx \u9650\u6d41\u914d\u7f6e\u6307\u5357<\/a>\u6240\u5c5e\u7684\u670d\u52a1\u5668\u4e13\u680f\u7cfb\u5217\u6392\u67e5\u7f51\u5173\u5c42\uff0c\u518d\u56de\u5934\u770b PHP \u62a5\u9519\u3002<\/p>\n
\u4e94\u3001\u5347\u7ea7\u5931\u8d25\u65f6\uff1a\u5982\u4f55\u5b89\u5168\u56de\u9000\u5230\u65e7\u7248\u672c<\/h2>\n
\u5982\u679c\u4fee\u590d\u8017\u65f6\u592a\u957f\u3001\u4e1a\u52a1\u7b49\u4e0d\u8d77\uff0c\u56de\u9000\u8981\u679c\u65ad\u3002\u56de\u9000\u5206\u4e24\u79cd\u60c5\u51b5\uff1a<\/p>\n