PHP MySQL Connect to Database

PHP MySQL Select Database

Use or select database to use.

Syntax

mysql_select_db(database_name);

Example 1

<?php

define('HOST', 'localhost');
define('USER', 'root');
define('PASS', 'yeething');
define('DBNAME', 'woowood');

$connection = mysql_connect(HOST, USER, PASS);

if (!$connection) {
	die("can not connect to the server!<br/>");
} else {
	$rdb = mysql_select_db(DBNAME);
	if (!$rdb) {
		die("The " . DBNAME . "database could not be selected");
	} else {
		echo "Database " . DBNAME . " is ready for use.";
	}
}
mysql_close($connection);
?> 

Output

Database woowood is ready for use.

Related Links

• PHP and MySQL Tutorial
• PHP Tutorial
• Tutorial Home

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1. MySQL Connect
2. Create Database
3. Connect to Database
4. Delete Database
5. Create Table
6. Insert Record
7. Insert From Array
8. Insert From File
9. Update Record
10. Query Single Record
11. Query Multiple Records
12. Query Uses LIMIT
13. Query Uses ORDER BY
14. Delete Table

1. Create Two Tables for this section tutorial
2. Query Uses AND Operator
3. Query Uses OR Operator
4. Query Uses INNER JOIN
5. Query Uses LEFT OUTER JOIN
6. Query Uses RIGHT OUTER JOIN
7. Query with Subquery

1. MySQL Aggregate Count
2. MySQL Aggregate SUM
3. MySQL Aggregate MAX
4. MySQL Aggregate MIN
5. MySQL Aggregate AVG
6. MySQL Query Uses GROUP BY
7. MySQL Query Uses Having

1. PHP MySQL Create Date
2. PHP MySQL Insert Date
3. PHP MySQL Query Date