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Website Programming in PHP / MYSQL
maxdb_query
maxdb->query
(PECL maxdb:1.0-7.6.00.38)
maxdb->query — Performs a query on the database
Description
Procedural style:
Object oriented style (method):
maxdb
mixed
query
( string $query
)
The maxdb_query() function is used to simplify the act of performing a query against the database represented by the link parameter.
Return Values
Returns TRUE on success or FALSE on failure. For SELECT, SHOW, DESCRIBE or EXPLAIN maxdb_query() will return a result resource.
Examples
Example #1 Object oriented style
<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
/* Create table doesn't return a resultset */
if ($maxdb->query("CREATE TABLE temp.mycity LIKE hotel.city") === TRUE) {
printf("Table mycity successfully created.\n");
}
/* Select queries return a resultset */
if ($result = $maxdb->query("SELECT name FROM hotel.city")) {
printf("Select returned %d rows.\n", $result->num_rows);
/* free result set */
$result->close();
}
/* If we have to retrieve large amount of data we use MAXDB_USE_RESULT */
if ($result = $maxdb->query("SELECT * FROM hotel.city", MAXDB_USE_RESULT)) {
$result->close();
}
$maxdb->close();
?>
Example #2 Procedural style
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
/* Create table doesn't return a resultset */
if (maxdb_query($link, "CREATE TABLE temp.mycity LIKE hotel.city") === TRUE) {
printf("Table mycity successfully created.\n");
}
/* Select queries return a resultset */
if ($result = maxdb_query($link, "SELECT name FROM hotel.city")) {
printf("Select returned %d rows.\n", maxdb_num_rows($result));
/* free result set */
maxdb_free_result($result);
}
/* If we have to retrieve large amount of data we use MAXDB_USE_RESULT */
if ($result = maxdb_query($link, "SELECT * FROM hotel.city", MAXDB_USE_RESULT)) {
maxdb_free_result($result);
}
maxdb_close($link);
?>
The above examples would produce the following output:
Table mycity successfully created. Select returned 25 rows.
