Detailed explanation of how to change password in php through configuration file

PHP, as an open source scripting language, is widely used in the Internet industry. Its use is very flexible, and the PHP configuration file can be easily modified, allowing programmers to freely add, delete and modify code to implement the program's functions. In PHP applications, the database password is an important part. In order to ensure security, the password cannot be leaked. This article will briefly introduce how to modify the database password in the PHP configuration file.

1. Open the PHP configuration file

Opening the PHP configuration file is the prerequisite for changing the password. On different operating systems, the path to the configuration file may vary. Common paths are as follows:

• In the Windows operating system, the default path of the PHP configuration file is C:\php\php.ini.
• In MacOS or Linux operating systems, the default path of PHP configuration file is /etc/php.ini or /usr/local/php/etc/php.ini.

Open the PHP configuration file and edit it.

2. Locate the MySQL configuration

In the configuration file, MySQL is one of the most commonly used databases in PHP applications. In order to change the MySQL password, we need to enter the MySQL configuration area and set the MySQL password as a new password. In PHP's configuration file, the MySQL configuration file path may be different, but you can usually use the following command to find the location of MySQL:

grep -r 'mysql.default_socket' /etc/php*

This command can find the path of MySQL in the PHP configuration file. Next, we need to look for the MySQL configuration identifier in the configuration file. Possible identifiers are as follows:

[MySQL]
[mysqli]
[pdo_mysql]

These identifiers are the set of instructions that tell PHP how to connect to MySQL. We can find these identifications, enter the area of ​​these identifications, and modify the password items there to match the new password.

3. Edit MySQL configuration information

After entering the MySQL configuration area, we need to edit the password items. The MySQL password is saved in PHP's configuration file and needs to be encoded. Before changing your password, you need to clearly know the type of password encoding. MySQL passwords are typically encrypted using MD5, but other types of encryption are also available. Make sure you know how your passwords are encrypted so you can update them correctly.

Next, we need to find the password identifier in the MySQL configuration and modify the password value.

In [MySQL], the password configuration item can be seen as follows:

;password = your_password

Remove the ';' comment in front, comment out the ';' following the old password, and then Insert the new password after the '=' sign, as follows:

password = new_password

In [mysqli], the password can be seen like this:

mysqli.default_pw = your_password

Place the old password followed by ';' Comment it out and insert the new password after the '=' sign, as shown below:

mysqli.default_pw = new_password

In [pdo_mysql], the password configuration item can be seen like this:

pdo_mysql.default_password = your_password

Put the old password Comment out the ';' that follows, and then insert the new password after the '=' sign, as shown below:

pdo_mysql.default_password = new_password

4. Save and exit

After you update the password, save the configuration file and exit. Your changes should now take effect.

In this article, we discussed how to change the MySQL password in the PHP configuration file. This process involves opening the configuration file, locating to the MySQL configuration area, editing the MySQL configuration information, saving and exiting. MySQL passwords are an important part of PHP applications, so it is crucial to change them when security issues lead to password leaks.

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