PHP uses mysql and mysqli to connect to Mysql database usage example, mysqlimysql

PHP uses mysql and mysqli to connect to Mysql database usage example, mysqlimysql

This example describes how to connect PHP to a mysql database using Mysql and mysqli. We will share this with you for your reference. The details are as follows:

The code is simple and straightforward.

<? Php/*** @ Author: HTL * @ Description: description * // reduce the default PHP error level // only display all the errors except disabled // solve the "discard warning" error when using mysql_connect due to the high PHP5.3 + version deprecated: mysql_connect (): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead "error_reporting (E_ALL ^ E_DEPRECATED); $ db_host =" localhost "; $ db_user = "root"; $ db_passwd = ""; $ db_name = "mysql"; echo ("<BR> ---------------------- ----- Mysql_connect ------------------------ <BR> "); $ query =" SELECT SESSION_USER (), CURRENT_USER (), now (); "; $ conn = mysql_connect ($ db_host, $ db_user, $ db_passwd); if (! $ Conn) {die ('could not connect :'. mysql_error ();} mysql_select_db ($ db_name, $ conn); $ result = mysql_query ($ query); while ($ row = mysql_fetch_array ($ result )) {var_dump ($ row);} mysql_close ($ conn); echo ("<BR> export mysqli_connect ---------------------- <BR>"); $ conn = mysqli_connect ($ db_host, $ db_user, $ db_passwd, $ db_name); if (! $ Conn) {die ('could not connect :'. mysqli_error ();} // execute the query. $ result = mysqli_query ($ conn, $ query); // display information: while ($ row = mysqli_fetch_array ($ result) {var_dump ($ row );} mysqli_close ($ conn); exit () ;?>

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