mysqli_multi_query
(PHP 5)
mysqli_multi_query
(no version information, might be only in CVS)
mysqli->multi_query -- Performs a query on the database
Description
Procedural style:
bool
mysqli_multi_query ( mysqli link, string query )
Object oriented style (method):
class
mysqli {
bool
multi_query ( string query )
}
The mysqli_multi_query() executes one or multiple queries
which are concatenated by a semicolon.
To retrieve the resultset from the first query you can use
mysqli_use_result() or mysqli_store_result().
All subsequent query results can be processed using
mysqli_more_results() and mysqli_next_result().
Valori restituiti
mysqli_multi_query() only returns FALSE if the first statement failed.
To retrieve subsequent errors from other statements you have to call
mysqli_next_result() first.
Esempi
Esempio 1. Object oriented style
<?php $mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); }
$query = "SELECT CURRENT_USER();"; $query .= "SELECT Name FROM City ORDER BY ID LIMIT 20, 5";
/* execute multi query */ if ($mysqli->multi_query($query)) { do { /* store first result set */ if ($result = $mysqli->store_result()) { while ($row = $result->fetch_row()) { printf("%s\n", $row[0]); } $result->close(); } /* print divider */ if ($mysqli->more_results()) { printf("-----------------\n"); } } while ($mysqli->next_result()); }
/* close connection */ $mysqli->close(); ?>
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Esempio 2. Procedural style
<?php $link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); }
$query = "SELECT CURRENT_USER();"; $query .= "SELECT Name FROM City ORDER BY ID LIMIT 20, 5";
/* execute multi query */ if (mysqli_multi_query($link, $query)) { do { /* store first result set */ if ($result = mysqli_store_result($link)) { while ($row = mysqli_fetch_row($result)) { printf("%s\n", $row[0]); } mysqli_free_result($result); } /* print divider */ if (mysqli_more_results($link)) { printf("-----------------\n"); } } while (mysqli_next_result($link)); }
/* close connection */ mysqli_close($link); ?>
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The above example will output:
my_user@localhost
-----------------
Amersfoort
Maastricht
Dordrecht
Leiden
Haarlemmermeer |
Hosting by: hurra.com
Generated: 2007-01-26 17:56:28