What are some common issues with deprecated PHP methods and how can they be resolved?

One common issue with deprecated PHP methods is that they may no longer be supported in newer versions of PHP, leading to potential errors or warnings in your code. To resolve this, you can update your code to use alternative methods or functions that have replaced the deprecated ones.

// Deprecated method example
$deprecatedVar = mysql_query($query);

// Updated method example
$updatedVar = mysqli_query($connection, $query);