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Why am I getting the \'Fatal Error: Uncaught Error: Call to undefined function mysql_connect()\' error in my PHP code?
Why am I getting the \'Fatal Error: Uncaught Error: Call to undefined function mysql_connect()\' error in my PHP code?
Nov 04, 2024 am 12:27 AM
Unresolved Connection Error: "Fatal Error: Uncaught Error: Call to undefined function mysql_connect()"?
When attempting to establish a database connection using XAMPP and MySQL, you may encounter the error "Fatal error: Uncaught Error: Call to undefined function mysql_connect()". This issue arises due to the deprecation of mysql_* functions in PHP 7.
Reason for the Error:
The deprecated mysql_ functions, such as mysql_connect(), are no longer supported in PHP 7. If you are using XAMPP with PHP 7, you will experience this error when trying to use the mysql_ functions.
Alternatives to mysql_* Functions:
To resolve this issue, you have two options:
- MySQLi: MySQLi is a mysqli_* function extension that provides an improved interface for interacting with MySQL.
- PDO (PHP Data Objects): PDO is a database abstraction layer that allows you to interact with different types of databases using a consistent API.
For example, if you were using mysql_connect() before, you can use mysqli_connect() in its place:
<?php // 舊方式 (不再支持) $link = mysql_connect($mysql_hostname , $mysql_username); // 新方式 (使用 MySQLi) $link = mysqli_connect($mysql_hostname , $mysql_username); ?>
Similarly, you can use the mysqli_ or PDO functions to replace other mysql_ functions. Detailed documentation and examples are available for both MySQLi and PDO.
The above is the detailed content of Why am I getting the \'Fatal Error: Uncaught Error: Call to undefined function mysql_connect()\' error in my PHP code?. For more information, please follow other related articles on the PHP Chinese website!
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