1.查看已安装的扩展
[root@localhost php]# php -m [PHP Modules] Core ctype date dom fileinfo filter hash iconv json libxml pcre PDO pdo_sqlite Phar posix Reflection session SimpleXML SPL sqlite3 standard swoole tokenizer xml xmlreader xmlwriter [Zend Modules]
2.查看配置路径
[root@localhost php]# php --ini Configuration File (php.ini) Path: /usr/local/php/lib Loaded Configuration File: /usr/local/php/lib/php.ini Scan for additional .ini files in: (none) Additional .ini files parsed: (none)