Введение
These functions allow you to access mSQL database servers. More
information about mSQL can be found at
http://www.hughes.com.au/.
Установка
In order to have these functions available, you must compile PHP with
msql support by using the
--with-msql[=DIR] option. DIR is the mSQL
base install directory, defaults to /usr/local/msql3.
Note to Win32 Users:
In order to enable this module on a Windows environment, you must copy
msql.dll from the DLL folder of the PHP/Win32
binary package to the SYSTEM32 folder of your windows machine.
(Ex: C:\WINNT\SYSTEM32 or
C:\WINDOWS\SYSTEM32)
Настройка во время выполнения
Поведение этих функций зависит от установок в php.ini.
Таблица 1. mSQL configuration options
| Name | Default | Changeable |
|---|
| msql.allow_persistent | "On" | PHP_INI_SYSTEM |
| msql.max_persistent | "-1" | PHP_INI_SYSTEM |
| msql.max_links | "-1" | PHP_INI_SYSTEM |
For further details and definition of the PHP_INI_* constants see
ini_set().
Краткое разъяснение конфигурационных
директив.
- msql.allow_persistentboolean
Whether to allow persistent mSQL connections.
- msql.max_persistentinteger
The maximum number of persistent mSQL connections per process.
- msql.max_linksinteger
The maximum number of mSQL connections per process, including
persistent connections.
Типы ресурсов
There are two resource types used in the mSQL module. The first one
is the link identifier for a database connection, the second a resource
which holds the result of a query.
Предопределенные константы
Перечисленные ниже константы определены данным расширением и могут быть
доступны только в том случае, если PHP был собран с
поддержкой этого расширения или же в том случае, если
данное расширение подгружается во время выполнения.
Примеры
This simple example shows how to connect, execute a query, print
resulting rows and disconnect from a mSQL database.
Пример 1. mSQL usage example <?php
/* Connecting, selecting database */
$link = msql_connect('localhost', 'username', 'password')
or die('Could not connect : ' . msql_error($link));
msql_select_db('database')
or die('Could not select database', $link);
/* Issue SQL query */
$query = 'SELECT * FROM my_table';
$result = msql_query($query, $link) or die('Query failed : ' . msql_error($link));
/* Printing results in HTML */
echo "<table>\n";
while ($row = msql_fetch_array($result, MSQL_ASSOC)) {
echo "\t<tr>\n";
foreach ($row as $col_value) {
echo "\t\t<td>$col_value</td>\n";
}
echo "\t</tr>\n";
}
echo "</table>\n";
/* Free result set */
msql_free_result($result);
/* Close connection */
msql_close($link);
?> |
|