Laravel
Laravel Collection Public API: diff_keys
The diffKeys method is used to determine which items in a collection have keys that are not present in the keys of another collection. The method takes an array or another collection as its parameter. In the first example, the $differences variable will only contain the key price since it is the only key in the first collection that is not present in the second collection. In the second example, the $differences variable will only contain the key description since it is the only key in the second collection that is not present in the first collection.
Laravel Collection Public API: each
The each method in Laravel's Collection class allows you to perform a $callback on each item in the collection. If the $callback function returns false, the loop will break. This method is similar to PHP's foreach construct. Even though the each method does not explicitly allow modifications to a collection's items, it is still possible to modify object properties within the collection due to how PHP treats objects as references. Keep in mind that the each method modifies the original collection and does not return a modified copy.
Laravel Collection Public API: filter
The filter method is used to apply a filter to a collection in Laravel. You can provide your own truth tests using a callback function to determine if a value should be included in the final collection. By default, any value that evaluates to false will be removed from the collection. The method returns a modified copy of the original collection without modifying the original.
Laravel Collection Public API: first
The first method in Laravel's Collection class is used to retrieve the first item in a collection. You can also pass a callback function to specify criteria for selecting the first item. If there are no items that match the criteria, you can provide a default value to be returned.
Laravel Collection Public API: flatMap
The flatMap method in Laravel is similar to map, but it collapses the resulting collection. It is used to transform each item in the collection and then merge the results into a single collection. This can be demonstrated by comparing two code examples that achieve the same result: mapping each item to uppercase.
Laravel Collection Public API: flatten
The flatten method in Laravel's Collection class allows you to transform a nested collection into a single-dimensional collection. This method does not preserve any keys from the original collection, even for deeply nested arrays.
Laravel Collection Public API: flip
The flip method in Laravel allows you to exchange keys with their corresponding values in a Collection. This can be useful when you need to perform operations based on the values rather than the keys. In the provided example, the $flippedCollection variable will contain a new instance of the Collection class where the original keys have been swapped with their corresponding values.
Laravel Collection Public API: forget
The forget method in Laravel can be used to remove an item from a collection based on a given key or numerical index. It modifies the collection instance it was called on. You can use the forget method to easily remove items from a collection and maintain the collection's structure and integrity.
Laravel Collection Public API: forPage
The forPage method in Laravel is used for implementing pagination over collections. This method takes two parameters: the page number and the number of items per page. It returns a new collection instance containing the items for the specified page. Alternatively, you can achieve similar results using the chunk method, which splits the collection into smaller collections, each containing a specified number of items. Accessing a specific page from the chunked collection can be done using the get method, passing the zero-based index of the desired page.
Laravel Collection Public API: get
The get method allows retrieving an item from a collection using a specific $key. If the $key does not exist, the method can return a default value or evaluate a callback to provide a fallback value. You can also use numeric keys to retrieve items from the collection.
Latest posts
Wrapping up Forte Phase 0 with the lexer and parser now in private alpha, and kicking off Phase 1 wi...
Read moreA Forte development update: the parser now supports backtracking, improvements to node metadata, ide...
Read moreWrapping up attribute parsing in Forte's HTML parser, from simple HTML attributes to complex, edge-c...
Read moreExploring how Forte's parser extensions can be used to handle complex Blade directives like nested s...
Read moreDigging into parsing Blade and HTML comments while building Forte's HTML parser for Laravel Blade.
Read moreThis week I’m tackling Forte's HTML parser - consolidating Blade, Flux, and Livewire components into...
Read more