php select database

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php select database

In this tutorial you will learn how to select the records from MySQL database tables using the SQL SELECT query in PHP. ,Though the mysql_select_db function selects one database, the mysql statement may reference ... You can select MySQL database without using this function. ,Example. Change the default database for the connection: <?php $con=mysqli_connect("localhost","my_user","my_password","my_db"); // Check connection ,First, we set up an SQL query that selects the id, firstname and lastname columns from the MyGuests table. The next line of code runs the query and puts the resulting data into a variable called $result. Then, the function num_rows() checks if there are m,PHP | MySQL Select Query. The SQL SELECT statement is used to select the records from database tables. Syntax : The basic syntax of the select clause is –. ,mysql_select_db — Select a MySQL database. Warning. This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. Instead, the MySQLi or ... ,mysql_select_db — Select a MySQL database. Warning. This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. Instead, the MySQLi or ... ,This function should only be used to change the default database for the connection. You can select the default database with 4th parameter in mysqli_connect() ...

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php select database 相關參考資料
How to Select Data from MySQL Database Tables Using PHP ...

In this tutorial you will learn how to select the records from MySQL database tables using the SQL SELECT query in PHP.

https://www.tutorialrepublic.c

mysql_select_db - Manual - PHP

Though the mysql_select_db function selects one database, the mysql statement may reference ... You can select MySQL database without using this function.

https://www.php.net

PHP mysqli_select_db() Function - W3Schools

Example. Change the default database for the connection: &lt;?php $con=mysqli_connect(&quot;localhost&quot;,&quot;my_user&quot;,&quot;my_password&quot;,&quot;my_db&quot;); // Check connection

https://www.w3schools.com

PHP Select Data From MySQL - W3Schools

First, we set up an SQL query that selects the id, firstname and lastname columns from the MyGuests table. The next line of code runs the query and puts the resulting data into a variable called $resu...

https://www.w3schools.com

PHP | MySQL Select Query - GeeksforGeeks

PHP | MySQL Select Query. The SQL SELECT statement is used to select the records from database tables. Syntax : The basic syntax of the select clause is –.

https://www.geeksforgeeks.org

Select a MySQL database - PHP

mysql_select_db — Select a MySQL database. Warning. This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. Instead, the MySQLi or&nbsp;...

https://www.php.net

Select a MySQL database - PHP.net

mysql_select_db — Select a MySQL database. Warning. This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. Instead, the MySQLi or&nbsp;...

http://php.net

Selects the default database for database queries - PHP

This function should only be used to change the default database for the connection. You can select the default database with 4th parameter in mysqli_connect()&nbsp;...

https://www.php.net