The max method in Laravel can be used to retrieve the maximum value of a given key. By default, the key is null and it behaves similarly to PHP's max function. In the first example, without specifying a key, the method returns the maximum value from the collection. In the second example, a key is specified and the method returns the maximum value based on that key.

The diffAssoc method in Laravel returns a new collection containing the items where the keys and values are not present in the provided arguments. It is similar to PHP's array_diff_assoc function. In the example usage, $newInformation will store any new information from the $contactInformation collection that is not found in the provided arguments.

Learn about the reverse method in Laravel's Collection class. This method is used to reverse the order of items in a collection. It returns a new Collection instance that contains the reversed items. The numerical keys are not preserved, but non-numerical keys are preserved.

The sortByDesc method is similar to the sortBy method, but it does not have a $descending parameter. Instead, it internally calls the sortBy method with true as the argument for the $descending parameter. Both methods allow you to sort a collection based on a callback function or a property. You can also use the sortByDesc method with higher order messages, allowing you to sort a collection in reverse order based on a property.

The sortBy method in Laravel allows you to sort a collection by a key or a value returned by a callback function. You can modify the sorting behavior using the $options parameter and choose whether to sort in ascending or descending order with the $descending parameter. The method returns a new instance of the Collection class with the items sorted and does not modify the original collection. Examples demonstrate sorting by name, number of followers, and using different sorting flags such as SORT_NUMERIC and SORT_STRING.

The sort method is used to sort a collection. By default, it uses a case-insensitive "natural order" algorithm. You can also provide a custom comparison function as an argument to the method. The original collection remains unchanged, and the method returns a new instance of Collection. The keys of the collection items are preserved during sorting. In the examples provided, the sort method is used to sort a collection of numbers in ascending order and a collection of people based on their age.

The chunk method in PHP is used to create smaller collections from larger collections. It takes two parameters: $size to control the size of each new collection, and $preserveKeys to indicate if the method should preserve array keys. By default, the method does not preserve array keys, but passing true as the second argument will include the original array keys in the resulting collections.

The proxy static method in Laravel's Collection class allows you to add additional methods to the list of methods that should be proxied for use with higher order messaging. These methods provide a cleaner syntax when invoking methods on collections of objects. For example, you can add the contains method to the list of proxied methods and then invoke it on a collection of objects using the -> syntax. Internally, the contains method will be executed on each object instance in the collection.

Learn how to use the times static method in Laravel's Collection class to easily create collections with a specified number of elements. The times method is similar to PHP's range function, but it provides additional functionality for collections. You can pass a $number argument to specify the number of elements and an optional $callback function to modify each element. Discover how to use the times method to populate a collection with a range of numbers or create a collection of Carbon date instances for the next few days. Be aware of potential duplicate dates when using the times method and consider storing the current date outside of the callback function.

The make static method in Laravel's Collection class creates a new collection instance with the provided items. If the argument is already a collection instance, it will be returned as is. You can use this method to easily create collections in your code. For example, you can create a collection from an array of items using Collection::make($items), and it will return a new collection instance.

The wrap static method in the Illuminate\Support\Collection class creates a collection from any value supplied to it. It is useful in situations where a collection instance is expected. For example, it can be used to ensure that function or method arguments are always a collection. It does not wrap a value if it is already a collection.

The unwrap method in Laravel's Collection class allows you to access the underlying items of a collection. If the value provided is already a collection, its underlying items will be returned. If the value is not a collection, the value will be returned as is. This method can be useful when you want to ensure that an argument supplied to a function is always an array.

The flip method in Laravel's Collection class returns a new instance of Collection with the keys and values swapped. It is similar to PHP's array_flip function. Using this method, you can easily reverse the order of items in a collection.