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mysql_db_query

Send a MySQL query (PHP 4, PHP 5, PECL mysql:1.0)
resource mysql_db_query ( string database, string query [, resource link_identifier] )

mysql_db_query() selects a database, and executes a query on it.

Parameters

database

The name of the database that will be selected.

query

The MySQL query.

link_identifier

The MySQL connection. If the link identifier is not specified, the last link opened by mysql_connect() is assumed. If no such link is found, it will try to create one as if mysql_connect() was called with no arguments. If by chance no connection is found or established, an E_WARNING level warning is generated.

Return Values

Returns a positive MySQL result resource to the query result, or FALSE on error. The function also returns TRUE/FALSE for INSERT/UPDATE/DELETE queries to indicate success/failure.

ChangeLog

VersionDescription
4.0.6 This function is deprecated, do not use this function. Use mysql_select_db() and mysql_query() instead.

Examples

Example 1421. mysql_db_query() alternative example

<?php

if (!$link = mysql_connect('mysql_host', 'mysql_user', 'mysql_password')) {
   echo
'Could not connect to mysql';
   exit;
}

if (!
mysql_select_db('mysql_dbname', $link)) {
   echo
'Could not select database';
   exit;
}

$sql    = 'SELECT foo FROM bar WHERE id = 42';
$result = mysql_query($sql, $link);

if (!
$result) {
   echo
"DB Error, could not query the database\n";
   echo
'MySQL Error: ' . mysql_error();
   exit;
}

while (
$row = mysql_fetch_assoc($result)) {
   echo
$row['foo'];
}

mysql_free_result($result);

?>


Notes

Note:

Be aware that this function does NOT switch back to the database you were connected before. In other words, you can't use this function to temporarily run a sql query on another database, you would have to manually switch back. Users are strongly encouraged to use the database.table syntax in their sql queries or mysql_select_db() instead of this function.