Attempts to INSERT records with duplicate keys would be rejected. Keep in mind that the DBMS will enforce the same constraints on the SQL statements being executed via PHP as it would any other interface into the database. Here's is a simple example of a PHP script that uses calls provided by the mysqli extension to select records from a MySQL database: Sample Script to Connect MySQL Database and Make MySQL Queries in PHP Typically, the values that the SQL statements need will come from web-form values and be represented as variables in the PHP script. To specify which records will be involved, you can use WHERE clauses. Add SQL Statements to PHP Functionsīy using MySQL extensions in PHP scripts, you can add the following SQL statements in PHP CRUD functions to work with MySQL database records: Pdo_mysql provides a PHP Data Object (PDO) interface to MySQL databases which is a data-access abstraction layer. Read the documentation for more information. It’s important to note that mysqlnd does not provide an API. Usually referred to as MySQL Native Driver, MysqlInd provides a PHP-native infrastructure for all MySQL extensions, and is a drop-in replacement for libmysqlclient. Mysqli is also referred to as MySQL improved. Mysqli in php supports MySQL 4.1 and newer. The three extensions that PHP provides to connect with MySQL include mysqli, mysqlInd, and pdo_mysql. Work with database records using the Create, Read, Update, and Delete (CRUD) functions.Manage errors generated from database calls.Connect PHP applications with MySQL (and MariaDB).PHP provides three extensions that you can use to: Use Extensions to Connect MySQL Database in PHP Here are two steps for connecting PHP to MySQL database. PHP supports many database management systems including MySQL, MariaDB, Db2, MongoDB, Oracle, PostgreSQL, and SQLite. The purpose of many PHP solutions is to provide web-based access to dynamic content that’s stored in a database. You can use the information is this blog to connect MariaDB to PHP as well. It complies with SQL standards, and provides popular RDBMS functions such as triggers, joins, and views.Īnd for developers already familiar with RDBMS solutions such as Db2 and Oracle, MySQL is also easy to learn. MySQL is most popular open source option for a Relational Database Management System (RDBMS). In this blog, we introduce what MySQL is and walk you through how to connect PHP to MySQL database.
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