# maxdb_query

# maxdb->query

(PECL maxdb:1.0-7.6.00.38)

maxdb->query — Performs a query on the database

### Description

Procedural style:

mixed maxdb_query ( resource `$link` , string `$query` [, int `$resultmode` ] )

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.

### See Also

- maxdb_real_query()
- maxdb_multi_query()
- maxdb_free_result()