Connecting database to both mysqli and mysql entension

You can use both mysql and mysqli extension for executing SQL queries. Here is a tutorial on how to connect both the extensions to a database. Create a file named config.php where you will connect to the database. Put the following code in it: localhost“, “username“, “password“, “db“); if ($mysqli-connect_errno) {     echo “Failed to connect to MySQL: (” . $mysqli-connect_errno . “) ” . $mysqli-connect_error; } $bd = mysql_connect(“localhost“, “username“, “password“) or die(mysql_error());

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Check whether mysqli connection is made or not in php

This function helps to check whether connection the mysql server has been made or not. Here is the code: if ($mysqli->ping()) { echo (“Our connection is ok!n”); } else {      printf (“Error: %sn”, $mysqli->error); } The $mysqli variable is a connection made via mysqli function. Know more about mysqli ping function here.

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