How can outdated PHP code impact the functionality of a website, and what resources are available for updating and maintaining PHP scripts?

Outdated PHP code can impact the functionality of a website by causing security vulnerabilities, compatibility issues with newer PHP versions, and decreased performance. To update and maintain PHP scripts, developers can utilize resources such as PHP.net for documentation, online tutorials, and forums for community support. 

// Example of updating PHP code to use mysqli instead of mysql extension
// Old code using mysql extension
$conn = mysql_connect('localhost', 'username', 'password');
mysql_select_db('database', $conn);

// Updated code using mysqli extension
$conn = mysqli_connect('localhost', 'username', 'password', 'database');

Keywords

Outdated PHP code website functionality updating maintaining PHP scripts

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