What are the potential pitfalls of migrating PHP code to a Wordpress site?

One potential pitfall of migrating PHP code to a WordPress site is that the code may not be compatible with WordPress functions and structure. To solve this issue, you may need to refactor the PHP code to adhere to WordPress coding standards and utilize WordPress functions for tasks like database queries and user authentication. 

// Example of refactoring PHP code to use WordPress functions
// Original PHP code
$query = "SELECT * FROM users WHERE id = $user_id";
$result = mysqli_query($conn, $query);

// Refactored code using WordPress functions
global $wpdb;
$user = $wpdb->get_row("SELECT * FROM {$wpdb->prefix}users WHERE ID = $user_id");

Keywords

WordPress PHP migration compatibility issues plugin conflicts theme customization

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