Structured Query Language (SQL)
Structured Query Language, SQL, is a database query language, used to access and update data in a relational database management system.
PHP supports several RDBMS natively, such as: Mysql, Oracle, IBM db2, DBA, ODBC. PHP also offers a database abstraction layer, called PDO.
<?php
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new mysqli('example.com', 'user', 'password', 'database');
$mysqli->query('DROP TABLE IF EXISTS test');
$mysqli->query('CREATE TABLE test(id INT)');
?>