What are the potential pitfalls of using deprecated functions in PHP?

Using deprecated functions in PHP can lead to compatibility issues with newer versions of PHP, as these functions may be removed in future releases. It is important to update your code to use alternative functions or methods to ensure long-term stability and compatibility. 

// Deprecated function example
$oldResult = mysql_query($query);

// Updated code using mysqli
$connection = mysqli_connect($host, $user, $password, $database);
$newResult = mysqli_query($connection, $query);

Keywords

deprecated functions PHP backward compatibility error reporting migration

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