Database table prefix

By default, when installing WordPress, you’re asked for the database table prefix and given the wp_ default prefix. This is how the tables in the database are defined and called by the different WordPress functions in the

code. Figure 5-1 shows Lisa’s WordPress database displayed in phpMyAdmin (a database administration interface), which displays all the tables in Lisa’s WordPress installation with the wp_ prefix.

Here’s how the database table prefix definition looks in the wp-config.php file:

/**

* WordPress Database Table prefix.

* You can have multiple installations in one database if you give each a unique
prefix. Only numbers, letters, and underscores please!

*/

$table_prefix = ‘wp_’;