Home > Backend Development > PHP Tutorial > Why Does a Dollar Sign ($) in a Password Cause Database Connection Issues?

Why Does a Dollar Sign ($) in a Password Cause Database Connection Issues?

Barbara Streisand
Release: 2024-11-09 22:02:02
Original
604 people have browsed it

Why Does a Dollar Sign ($) in a Password Cause Database Connection Issues?

Dollar ($) Sign in Password String Causes Database Connection Issues

In a recent encounter, a PHP application experienced difficulties establishing a connection to a MySQL database. Despite using the correct credentials, the database remained inaccessible.

Investigation revealed that the password contained a dollar ($) sign:

$_DB["password"] = "mypas$word";
Copy after login
Copy after login

This caused the password to be truncated to "mypas" when sent to the database, leading to the connection failure.

Solution

The issue was resolved by escaping the dollar sign with a backslash:

$_DB["password"] = "mypas$word";
Copy after login
Copy after login

This allowed the password to be sent to the database correctly.

Best Practice

To avoid such issues, it's recommended to use single-quoted strings for database passwords:

$_DB['password'] = 'mypas$word';
Copy after login

Single-quoted strings are not processed and are interpreted as-is. This approach is faster and less prone to errors.

The above is the detailed content of Why Does a Dollar Sign ($) in a Password Cause Database Connection Issues?. For more information, please follow other related articles on the PHP Chinese website!

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template