pg_ping
Ping 数据库连接
&reftitle.description;
boolpg_ping
PgSql\Connectionnullconnection&null;
pg_ping ping 数据库连接，如果中断则尝试重新连接。
&reftitle.parameters;
connection
&pgsql.parameter.connection-with-nullable-default;
&reftitle.returnvalues;
&return.success;
&reftitle.changelog;
&Version;
&Description;
&pgsql.changelog.connection-object;
8.0.0
connection 现在可为 null。
&reftitle.examples;
<function>pg_ping</function> 示例
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&reftitle.seealso;
pg_connection_status
pg_connection_reset