不要忘记在您的 ini 配置中将 "mysqlnd.collect_statistics" 设置为 "1" 以使用此方法。
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
mysqli::get_connection_stats -- mysqli_get_connection_stats — 返回有关客户端连接的统计信息
mysql
仅过程式风格:由 mysqli_connect() 或 mysqli_init() 返回的 mysqli 对象
返回包含连接统计信息的数组。
示例 #1 mysqli_get_connection_stats() 示例
<?php
$link = mysqli_connect();
print_r(mysqli_get_connection_stats($link));
?>
上面的示例将输出类似于以下内容
Array ( [bytes_sent] => 43 [bytes_received] => 80 [packets_sent] => 1 [packets_received] => 2 [protocol_overhead_in] => 8 [protocol_overhead_out] => 4 [bytes_received_ok_packet] => 11 [bytes_received_eof_packet] => 0 [bytes_received_rset_header_packet] => 0 [bytes_received_rset_field_meta_packet] => 0 [bytes_received_rset_row_packet] => 0 [bytes_received_prepare_response_packet] => 0 [bytes_received_change_user_packet] => 0 [packets_sent_command] => 0 [packets_received_ok] => 1 [packets_received_eof] => 0 [packets_received_rset_header] => 0 [packets_received_rset_field_meta] => 0 [packets_received_rset_row] => 0 [packets_received_prepare_response] => 0 [packets_received_change_user] => 0 [result_set_queries] => 0 [non_result_set_queries] => 0 [no_index_used] => 0 [bad_index_used] => 0 [slow_queries] => 0 [buffered_sets] => 0 [unbuffered_sets] => 0 [ps_buffered_sets] => 0 [ps_unbuffered_sets] => 0 [flushed_normal_sets] => 0 [flushed_ps_sets] => 0 [ps_prepared_never_executed] => 0 [ps_prepared_once_executed] => 0 [rows_fetched_from_server_normal] => 0 [rows_fetched_from_server_ps] => 0 [rows_buffered_from_client_normal] => 0 [rows_buffered_from_client_ps] => 0 [rows_fetched_from_client_normal_buffered] => 0 [rows_fetched_from_client_normal_unbuffered] => 0 [rows_fetched_from_client_ps_buffered] => 0 [rows_fetched_from_client_ps_unbuffered] => 0 [rows_fetched_from_client_ps_cursor] => 0 [rows_skipped_normal] => 0 [rows_skipped_ps] => 0 [copy_on_write_saved] => 0 [copy_on_write_performed] => 0 [command_buffer_too_small] => 0 [connect_success] => 1 [connect_failure] => 0 [connection_reused] => 0 [reconnect] => 0 [pconnect_success] => 0 [active_connections] => 1 [active_persistent_connections] => 0 [explicit_close] => 0 [implicit_close] => 0 [disconnect_close] => 0 [in_middle_of_command_close] => 0 [explicit_free_result] => 0 [implicit_free_result] => 0 [explicit_stmt_close] => 0 [implicit_stmt_close] => 0 [mem_emalloc_count] => 0 [mem_emalloc_ammount] => 0 [mem_ecalloc_count] => 0 [mem_ecalloc_ammount] => 0 [mem_erealloc_count] => 0 [mem_erealloc_ammount] => 0 [mem_efree_count] => 0 [mem_malloc_count] => 0 [mem_malloc_ammount] => 0 [mem_calloc_count] => 0 [mem_calloc_ammount] => 0 [mem_realloc_count] => 0 [mem_realloc_ammount] => 0 [mem_free_count] => 0 [proto_text_fetched_null] => 0 [proto_text_fetched_bit] => 0 [proto_text_fetched_tinyint] => 0 [proto_text_fetched_short] => 0 [proto_text_fetched_int24] => 0 [proto_text_fetched_int] => 0 [proto_text_fetched_bigint] => 0 [proto_text_fetched_decimal] => 0 [proto_text_fetched_float] => 0 [proto_text_fetched_double] => 0 [proto_text_fetched_date] => 0 [proto_text_fetched_year] => 0 [proto_text_fetched_time] => 0 [proto_text_fetched_datetime] => 0 [proto_text_fetched_timestamp] => 0 [proto_text_fetched_string] => 0 [proto_text_fetched_blob] => 0 [proto_text_fetched_enum] => 0 [proto_text_fetched_set] => 0 [proto_text_fetched_geometry] => 0 [proto_text_fetched_other] => 0 [proto_binary_fetched_null] => 0 [proto_binary_fetched_bit] => 0 [proto_binary_fetched_tinyint] => 0 [proto_binary_fetched_short] => 0 [proto_binary_fetched_int24] => 0 [proto_binary_fetched_int] => 0 [proto_binary_fetched_bigint] => 0 [proto_binary_fetched_decimal] => 0 [proto_binary_fetched_float] => 0 [proto_binary_fetched_double] => 0 [proto_binary_fetched_date] => 0 [proto_binary_fetched_year] => 0 [proto_binary_fetched_time] => 0 [proto_binary_fetched_datetime] => 0 [proto_binary_fetched_timestamp] => 0 [proto_binary_fetched_string] => 0 [proto_binary_fetched_blob] => 0 [proto_binary_fetched_enum] => 0 [proto_binary_fetched_set] => 0 [proto_binary_fetched_geometry] => 0 [proto_binary_fetched_other] => 0 )
不要忘记在您的 ini 配置中将 "mysqlnd.collect_statistics" 设置为 "1" 以使用此方法。
虽然此函数仅在您使用 PHP MySQL Native Driver 时才可用,但您可以使用 MySQL SHOW STATUS 查询在没有此函数的情况下获得相同的统计信息。
使用 'SHOW SESSION STATUS;' 获取有关当前 MySQL 会话的统计信息。
使用 'SHOW GLOBAL STATUS;' 获取自服务器启动以来的总数。
在您与 MySQL 服务器建立连接后
<?php
$result = $mysqli->query('SHOW SESSION STATUS;', MYSQLI_USE_RESULT);
while ($row = $result->fetch_assoc()) {
$array[$row['Variable_name']] = $row['Value'];
}
$result->close();
print_r($array);
?>