PHP mysqli_connect_errno() Function

In this chapter you will learn:

1. Definition for PHP mysqli_connect_errno() Function
2. Syntax for PHP mysqli_connect_errno() Function
3. Return for PHP mysqli_connect_errno() Function
4. Example - Get the error code from the last connection error

Definition

The mysqli_connect_errno() function returns the error code from the last connection error.

Syntax

PHP mysqli_connect_errno() Function has the following syntax.

Return

An error code value for the last call to mysqli_connect(), if it failed. zero means no error occurred.

Example

Get the error code from the last connection error

<?php//from   j  a v  a 2s.com
$con=mysqli_connect("localhost","wrong_user","my_wrongPassword","my_WrongDatabase");
// Check connection
if (!$con){
  die("Connection error: " . mysqli_connect_errno());
}
?>

Next chapter...

What you will learn in the next chapter:

1. Definition for PHP mysqli_connect_error() Function
2. Syntax for PHP mysqli_connect_error() Function
3. Return for PHP mysqli_connect_error() Function
4. Example - Get the error description from the last connection error

PHP mysqli_affected_rows() Function

PHP mysqli_autocommit() Function

PHP mysqli_change_user() Function

PHP mysqli_character_set_name() Function

PHP mysqli_close() Function

PHP mysqli_commit() Function

PHP mysqli_connect() Function

PHP mysqli_connect_errno() Function

PHP mysqli_connect_error() Function

PHP mysqli_data_seek() Function

PHP mysqli_dump_debug_info() Function

PHP mysqli_errno() Function

PHP mysqli_error() Function

PHP mysqli_error_list() Function

PHP mysqli_fetch_all() Function

PHP mysqli_fetch_array() Function

PHP mysqli_fetch_assoc() Function

PHP mysqli_fetch_field() Function

PHP mysqli_fetch_field_direct() Function

PHP mysqli_fetch_fields() Function

PHP mysqli_fetch_lengths() Function

PHP mysqli_fetch_object() Function

PHP mysqli_fetch_row() Function

PHP mysqli_field_count() Function

PHP mysqli_field_seek() Function

PHP mysqli_field_tell() Function

PHP mysqli_free_result() Function

PHP mysqli_get_charset() Function

PHP mysqli_get_client_info() Function

PHP mysqli_get_client_stats() Function

PHP mysqli_get_client_version() Function

PHP mysqli_get_connection_stats() Function

PHP mysqli_get_host_info() Function

PHP mysqli_get_proto_info() Function

PHP mysqli_get_server_info() Function

PHP mysqli_get_server_version() Function

PHP mysqli_info() Function

PHP mysqli_init() Function

PHP mysqli_insert_id() Function

PHP mysqli_kill() Function

PHP mysqli_more_results() Function

PHP mysqli_multi_query() Function

PHP mysqli_next_result() Function

PHP mysqli_num_fields() Function

PHP mysqli_num_rows() Function

PHP mysqli_options() Function

PHP mysqli_ping() Function

PHP mysqli_query() Function

PHP mysqli_real_connect() Function

PHP mysqli_real_escape_string() Function

PHP mysqli_refresh() Function

PHP mysqli_rollback() Function

PHP mysqli_select_db() Function

PHP mysqli_set_charset() Function

PHP mysqli_sqlstate() Function

PHP mysqli_ssl_set() Function

PHP mysqli_stat() Function

PHP mysqli_stmt_init() Function

PHP MySQL mysqli_thread_id() Function

PHP mysqli_thread_safe() Function