**Warning: mysql_connect(): No such file or directory in *** 原因是在连接数据库时,默认情况下使用本地套接字(Unix域套接字)进行通信,需要在配置文件中指定套字节的路径
查看套字节的路径
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mysql Ver 15.1 Distrib 10.6.12-MariaDB, for debian-linux-gnu (x86_64) using EditLine wrapper Connection id: 10 Current database: Current user: root@localhost SSL: Not in use Current pager: stdout Using outfile: ‘’ Using delimiter: ; Server: MariaDB Server version: 10.6.12-MariaDB-0ubuntu0.22.10.1 Ubuntu 22.10 Protocol version: 10 Connection: Localhost via UNIX socket Server characterset: utf8mb4 Db characterset: utf8mb4 Client characterset: utf8mb3 Conn. characterset: utf8mb3 UNIX socket: /run/mysqld/mysqld.sock Uptime: 37 min 39 sec Threads: 1 Questions: 47 Slow queries: 0 Opens: 29 Open tables: 19 Queries per second avg: 0.020