How can PHP developers prevent the occurrence of duplicate customer IDs in their code?

To prevent the occurrence of duplicate customer IDs in PHP code, developers can generate unique IDs using functions like uniqid() or UUID. These functions create IDs that are highly unlikely to be duplicated, ensuring data integrity and preventing conflicts in the database.

// Generate a unique customer ID using uniqid()
$customer_id = uniqid();

// Alternatively, generate a unique customer ID using UUID
$customer_id = uuid_create(UUID_TYPE_RANDOM);