توابع mysql_db_name() در PHP
تعریف و استفاده
The mysql_db_name() function retrieves the database name returned by the mysql_list_dbs() call.
Syntax
mysql_db_name(list,row,field)
| Parameter | Description |
|---|---|
| list | Required.mysql_list_dbs() Calls the returned result pointer. |
| row | Required. Specifies the row number in the result set. Starts from 0. |
| field | Optional. Specifies the field name. |
Description
If successful, it returns the database name, and if it fails, it returns false. If false is returned, use mysql_error() to determine the type of error.
Example
<?php
$con = mysql_connect("localhost", "peter", "abc123");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
$db_list = mysql_list_dbs($con);
$i = 0;
$db_count = mysql_num_rows($db_list);
while ($i < $db_count)
{
echo mysql_db_name($db_list, $i) . "<br />";
$i++;
}
mysql_close($con);
?>
Output similar to:
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