pg_dbname
(PHP 4, PHP 5, PHP 7)
pg_dbname — Определяет имя базы данных
Описание
string pg_dbname
([ resource
$connection
] )
pg_dbname() возвращает имя базы данных, соответствующей
ресурсу PostgreSQL connection.
Список параметров
-
connection -
Ресурс подключения к базе данных PostgreSQL. Если параметр
connectionне задан, будет использовано подключение по умолчанию - последнее соединение, открытое функцией pg_connect() или pg_pconnect().
Возвращаемые значения
Строка, содержащая имя базы данных, соответствующей ресурсу
connection, либо FALSE в случае ошибки.
Примеры
Пример #1 Пример использования pg_dbname()
<?php
error_reporting(E_ALL);
pg_connect("host=localhost port=5432 dbname=mary");
echo pg_dbname(); // mary
?>
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Расширения для работы с базами данных
- Расширения для работы с базами данных отдельных производителей
- PostgreSQL
- pg_affected_rows
- pg_cancel_query
- pg_client_encoding
- pg_close
- pg_connect_poll
- pg_connect
- pg_connection_busy
- pg_connection_reset
- pg_connection_status
- pg_consume_input
- pg_convert
- pg_copy_from
- pg_copy_to
- pg_dbname
- pg_delete
- pg_end_copy
- pg_escape_bytea
- pg_escape_identifier
- pg_escape_literal
- pg_escape_string
- pg_execute
- pg_fetch_all_columns
- pg_fetch_all
- pg_fetch_array
- pg_fetch_assoc
- pg_fetch_object
- pg_fetch_result
- pg_fetch_row
- pg_field_is_null
- pg_field_name
- pg_field_num
- pg_field_prtlen
- pg_field_size
- pg_field_table
- pg_field_type_oid
- pg_field_type
- pg_flush
- pg_free_result
- pg_get_notify
- pg_get_pid
- pg_get_result
- pg_host
- pg_insert
- pg_last_error
- pg_last_notice
- pg_last_oid
- pg_lo_close
- pg_lo_create
- pg_lo_export
- pg_lo_import
- pg_lo_open
- pg_lo_read_all
- pg_lo_read
- pg_lo_seek
- pg_lo_tell
- pg_lo_truncate
- pg_lo_unlink
- pg_lo_write
- pg_meta_data
- pg_num_fields
- pg_num_rows
- pg_options
- pg_parameter_status
- pg_pconnect
- pg_ping
- pg_port
- pg_prepare
- pg_put_line
- pg_query_params
- pg_query
- pg_result_error_field
- pg_result_error
- pg_result_seek
- pg_result_status
- pg_select
- pg_send_execute
- pg_send_prepare
- pg_send_query_params
- pg_send_query
- pg_set_client_encoding
- pg_set_error_verbosity
- pg_socket
- pg_trace
- pg_transaction_status
- pg_tty
- pg_unescape_bytea
- pg_untrace
- pg_update
- pg_version
Коментарии
This function is as simple as it sounds, it returns the name of the database your are currently connected to on the handle retrieved from a pg_connect() call.
<?php
$pgsql_conn = pg_connect("dbname=mark host=localhost");
if ($pgsql_conn) {
print "Successfully connected to database: " . pg_dbname($pgsql_conn) .
" on " . pg_host($pgsql_conn) . "<br/>\n";
} else {
print pg_last_error($pgsql_conn);
exit;
}
?>
[mark@prodigy][*][~/public_html/php]>>>php pg_dbname.php
Content-type: text/html
X-Powered-By: PHP/4.3.1
Successfully connected to database: mark on localhost<br/>
Again this function is much more useful when you are changing which database you are connected to in your program.
Regards, --mark