PHP mysqli_get_connection_stats() 函式

定義和用法

mysqli_get_connection_stats() 函式接受一個連線物件作為引數，檢索並返回給定連線的資訊/狀態，以陣列的形式。此函式僅適用於 mysqlnd。

語法

mysqli_get_connection_stats($con);

引數

返回值

PHP mysqli_get_connection_stats() 函式返回一個包含給定連線的狀態資訊的陣列。如果失敗，此函式返回布林值 false。

PHP 版本

此函式首次引入 PHP 5 版本，並在所有後續版本中均有效。

示例

以下示例演示了 mysqli_get_connection_stats() 函式的使用（以過程式風格）−

<?php
   //Creating a connection
   $con = mysqli_connect("localhost", "root", "password", "mydb");

   //Connection Status
   $stat = mysqli_get_connection_stats($con);
   print_r($stat);

   //Closing the connection
   mysqli_close($con);
?>

這將產生以下結果−

Array
(
    [bytes_sent] => 138
    [bytes_received] => 93
    [packets_sent] => 2
    [packets_received] => 2
    [protocol_overhead_in] => 8
    [protocol_overhead_out] => 8
    [bytes_received_ok_packet] => 0
    [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] => 0
    [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_affected_normal] => 0
    [rows_affected_ps] => 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_amount] => 0
    [mem_ecalloc_count] => 0
    [mem_ecalloc_amount] => 0
    [mem_erealloc_count] => 0
    [mem_erealloc_amount] => 0
    [mem_efree_count] => 0
    [mem_efree_amount] => 0
    [mem_malloc_count] => 0
    [mem_malloc_amount] => 0
    [mem_calloc_count] => 0
    [mem_calloc_amount] => 0
    [mem_realloc_count] => 0
    [mem_realloc_amount] => 0
    [mem_free_count] => 0
    [mem_free_amount] => 0
    [mem_estrndup_count] => 0
    [mem_strndup_count] => 0
    [mem_estrdup_count] => 0
    [mem_strdup_count] => 0
    [mem_edupl_count] => 0
    [mem_dupl_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_json] => 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
    [init_command_executed_count] => 0
    [init_command_failed_count] => 0
    [com_quit] => 0
    [com_init_db] => 0
    [com_query] => 0
    [com_field_list] => 0
    [com_create_db] => 0
    [com_drop_db] => 0
    [com_refresh] => 0
    [com_shutdown] => 0
    [com_statistics] => 0
    [com_process_info] => 0
    [com_connect] => 0
    [com_process_kill] => 0
    [com_debug] => 0
    [com_ping] => 0
    [com_time] => 0
    [com_delayed_insert] => 0
    [com_change_user] => 0
    [com_binlog_dump] => 0
    [com_table_dump] => 0
    [com_connect_out] => 0
    [com_register_slave] => 0
    [com_stmt_prepare] => 0
    [com_stmt_execute] => 0
    [com_stmt_send_long_data] => 0
    [com_stmt_close] => 0
    [com_stmt_reset] => 0
    [com_stmt_set_option] => 0
    [com_stmt_fetch] => 0
    [com_deamon] => 0
    [bytes_received_real_data_normal] => 0
    [bytes_received_real_data_ps] => 0
)