$row is just a name of a variable. When you are using mysqli_fetch_array, you can get rows from resource you get from MySQL like while($row = mysqli_fetch_array($result)) { /* do_something */ } https://stackoverflow.com/questions/39635755/row-variable-in-php/39636065#39636065.
What is the use of MySQL in PHP?
MySQL is a first choice of PHP developers. As an open source Relational Database Management System (RDBMS) that uses SQL language, MySQL database helps to automate data retrieving and provide great support in PHP MySQL web application development.
What is database in PHP with example?
PHP Create a MySQL Database
A database consists of one or more tables. You will need special CREATE privileges to create or to delete a MySQL database.
What does mysql_fetch_row function do?
mysql_fetch_row() fetches one row of data from the result associated with the specified result identifier. The row is returned as an array. Each result column is stored in an array offset, starting at offset 0.
What is the use of PDO in PHP?
The PHP Data Objects ( PDO ) extension defines a lightweight, consistent interface for accessing databases in PHP. Each database driver that implements the PDO interface can expose database-specific features as regular extension functions.
What is difference between SQL and MySQL?
What is the difference between SQL and MySQL? In a nutshell, SQL is a language for querying databases and MySQL is an open source database product. SQL is used for accessing, updating and maintaining data in a database and MySQL is an RDBMS that allows users to keep the data that exists in a database organized.
What is difference between PHP and MySQL?
The main difference between PHP and MySQL is that PHP is a scripting language, whereas MySQL is a relational database management system. … As stated, PHP is a server-side scripting language. A server-side scripting language allows the user to embed little programs or scripts into the HTML of a Web page.
Which database is best for PHP?
MySQL remains most popular database for PHP applications. The database is the most popular open-source database in the world. The enterprise version of the database is available as well and is a paid one. Many popular applications like SugarCRM, Magento, WordPress and Drupal use mySQL.
What is xampp server?
XAMPP (/ˈzæmp/ or /ˈɛks. æmp/) is a free and open-source cross-platform web server solution stack package developed by Apache Friends, consisting mainly of the Apache HTTP Server, MariaDB database, and interpreters for scripts written in the PHP and Perl programming languages.
How can I create database in PHP?
The basic steps to create MySQL database using PHP are:
- Establish a connection to MySQL server from your PHP script as described in this article.
- If the connection is successful, write a SQL query to create a database and store it in a string variable.
- Execute the query.
What will mysql_fetch_row () return?
The mysql_fetch_row() function returns a row from a recordset as a numeric array. This function gets a row from the mysql_query() function and returns an array on success, or FALSE on failure or when there are no more rows.
What is the use of Mysql_num_rows in PHP?
PHP mysql_num_rows() Function
The mysql_num_rows() function returns the number of rows in a recordset. This function returns FALSE on failure.
What is Mysqli_result?
Procedural style. array|null|false mysqli_fetch_assoc(mysqli_result result); Returns an associative array that corresponds to the fetched row or null if there are no more rows. Note. Field names returned by this function are case-sensitive.
What is PDO full form?
The Full form of PDO is Public Debt Office, or PDO stands for Public Debt Office, or the full name of given abbreviation is Public Debt Office.
What are the benefits of PDO?
There are some advantages of PDO as follows:
- Database support. The PDO extension can access any database which is written for PDO driver. …
- Database connecting. There are different syntaxes available to establish the database connection. …
- Error handling. PDO permits to use exceptions for error handling. …
- Insert and Update.
What is PDO Class PHP?
What is PDO? PDO – PHP Data Object. A set of PHP extensions that provide a core PDO class and database specific drivers. Provides a vendor-neutral lightweight data-access abstraction layer. Focus on data access abstraction rather than database abstraction.