How to SELECT database in MySQL with PHP?

How to SELECT database in MySQL with PHP?

Selecting a MySQL Database Using PHP Script

PHP uses mysqli_select_db function to select the database on which queries are to be performed. This function takes two parameters and returns TRUE on success or FALSE on failure.

How to SELECT all database in PHP?

By using mysql_db_list() function we can get the result set and by using a pointer to this result set we can get the list of all the database. With this and using the code below we can list all the databases hosted on the mysql server. Here is the code, ensure that connection is available to the server.

How to access MySQL table in PHP?

Data can be fetched from MySQL tables by executing SQL SELECT statement through PHP function mysql_query. You have several options to fetch data from MySQL. The most frequently used option is to use function mysql_fetch_array(). This function returns row as an associative array, a numeric array, or both.

How to connect and SELECT database in PHP?

Create Database Connection File in PHP

  1. $dbhost: This variable specifies the host where your server is running. …
  2. $dbuser: This variable specifies the username for accessing the database. …
  3. $dbpass: This variable specifies the database password. …
  4. $dbname: This variable specifies the database name you want to connect to.

How to use mysqli_select_db in PHP?

php //Creating a connection $con = mysqli_connect("localhost", "root", "password", "mydb"); //Selecting the database mysqli_query($con, "CREATE DATABASE NewDatabase"); mysqli_select_db($con, "NewDatabase"); //Retrieving the current database name $res = mysqli_query($con, "SELECT DATABASE()"); while ($row = …

What is mysql_select_db in PHP?

mysql_select_db() sets the current active database on the server that's associated with the specified link identifier. If no link identifier is specified, the last opened link is assumed. If no link is open, the function will try to establish a link as if mysql_connect() was called without arguments, and use it.

How to SELECT all database in MySQL?

MySQL SHOW DATABASES command to get list of databases. Run the following query to show list of databases: SHOW DATABASES; You can run this statement from MySQL Command Line Client, MySQL Shell, as well as from any GUI tool that supports SQL—for example, dbForge Studio for MySQL.

How to SELECT all from db in MySQL?

We use the SELECT * FROM table_name command to select all the columns of a given table. In the following example we are selecting all the columns of the employee table. mysql> SELECT * FROM employee; And we get the following output.

How to access MySQL database?

To access a MySQL database, go to Site Tools > Site > MySQL > phpMyAdmin and click the Access phpMyAdmin button. If you are not sure which database corresponds to a specific website, you can check it at Site Tools > Site > MySQL > Databases. Check the label which will help you find the database for your site.

How to access a database from PHP?

Database Access in PHP

  1. Establish or open a connection to the MYSQL server.
  2. Select a database.
  3. Execute the query against the database.
  4. Process the result returned by the server.
  5. Close the connection.

What is Mysql_select_db in PHP?

mysql_select_db() sets the current active database on the server that's associated with the specified link identifier. If no link identifier is specified, the last opened link is assumed. If no link is open, the function will try to establish a link as if mysql_connect() was called without arguments, and use it.

What is Select_db in PHP?

The select_db() / mysqli_select_db() function is used to change the default database for the connection.

How to use database in PHP?

PHP Database connection

  1. Start XAMPP server by starting Apache and MySQL.
  2. Write PHP script for connecting to XAMPP.
  3. Run it in the local browser.
  4. Database is successfully created which is based on the PHP code.

How to display a table from database in PHP?

php $query = $mysqli->query("SELECT * FROM table_name"); The whole content of the table is now included in a PHP array with the name $result.

How do you SELECT a database?

Database selection criteria

  1. A reliable monitoring and alerting system.
  2. Support for backup and restore.
  3. Reasonable upgrade and migration costs.
  4. An active support community.
  5. Ease of performance tuning.
  6. Ease of troubleshooting.

How do you SELECT all in a database?

In its most simple form, the SELECT clause has the following SQL syntax for a Microsoft SQL Server database: SELECT * FROM <TableName>; This SQL query will select all columns and all rows from the table.

How to use Mysql_select_db in PHP?

PHP uses mysqli_select_db function to select the database on which queries are to be performed. This function takes two parameters and returns TRUE on success or FALSE on failure.

How to start MySQL database?

Start MySQL Server on Windows

  1. Running the mysqld command. Start the MySQL server on a Windows-based system from the Command Prompt. …
  2. Executing the net start command. An alternative to mysqld start is the net start command. …
  3. Using the services window. …
  4. Via the task manager.