scriptzteam / mysqlibackwards

Simple script to facilitate converting existing PHP scripts that use mysql_ functions to support the new mysqli_ functions

mysqlibackwards

Simple script to help convert existing PHP scripts that use mysql_ functions to support the new mysqli_ functions.

By Ben McGaughey of Seltice Systems LLC

Version 0.2 (BETA)

Why?

First, mysql_ functions are being deprecated, so it's a necessity to change to mysqli_ functions.

Second, rewriting entire projects may not be an option for many of us. Possibly due to cost or time. But having a script that can be included at the top of your exiting script (mysqlibackwards.php), then rename mysql_ functions to mysqlii_ with a find-and-replace tool is a quick solution to the problem.

It is very important that you properly sanitize your SQL strings and add slashes where appropriate based on your web server's PHP, MySQL, and other server-specific settings to prevent SQL injection, etc.

Always make backups of your DATABASE AND SCRIPTS before replacing function names in your existing scripts or testing on a live database!!! This script is still in BETA and being tested, so it is NOT recommended that it be used in a live, commercial, or production environment, especially before running extensive tests.

Currently supported mysql override functions and additional functions:

• mysqlii_connect
• mysqlii_select_db
• mysqlii_close
• mysqlii_query
• mysqlii_num_rows
• mysqlii_fetch_object
• mysqlii_fetch_array
• mysqlii_free_result
• mysqlii_real_escape_string
• mysqlii_list_fields
• mysqlii_num_fields
• mysqlii_field_len
• mysqlii_field_type
• mysqlii_field_name
• mysqlii_insert_id

##Example of how I use this script:

This would be the existing script on one of my old websites:

<?php

$user = "my_username";
$password = "my_password";
$dbase = "my_database";
$host = "my_hostname";
$db = mysql_connect($host, $user, $password);
mysql_select_db($dbase);
$sql = "SELECT * FROM my_table WHERE IsActive=1";
$res = mysql_query($sql);
if (mysql_num_rows($res) > 0) {
	while ($row = mysql_fetch_object($res)) {
		print $row->fieldName . "<br>";
	}
	mysql_free_result($res);
}

This would by my method to convert the script above to use mysqlibackwards. Note that all I had to do was change the function names to have mysqlii_ instead of mysql_ and include mysqlibackwards.php:

<?php

require_once("mysqlibackwards.php");

$user = "my_username";
$password = "my_password";
$dbase = "my_database";
$host = "my_hostname";
$db = mysqlii_connect($host, $user, $password);
mysqlii_select_db($dbase);
$sql = "SELECT * FROM my_table WHERE IsActive=1";
$res = mysqlii_query($sql);
if (mysqlii_num_rows($res) > 0) {
	while ($row = mysqlii_fetch_object($res)) {
		print $row->fieldName . "<br>";
	}
	mysqlii_free_result($res);
}