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Laravel 5

Laravel 5 Collections: Retrieving a Portion of a Collection With slice

John Koster
John Koster
April 22, 2018

The slice method in Laravel is used to return a portion of a collection starting at a given offset. The offset determines where to start when creating the new collection, and it can be positive or negative to start from the end of the original collection. The method returns a new instance of the Collection class without modifying the original collection. The slice method is similar to PHP's array_slice function. There is also an optional length parameter that allows developers to control the size of the returned Collection. Additionally, developers can choose to preserve the keys of the returned collection by passing true as the argument for the preserveKeys parameter.

Laravel 5

Laravel 5 Collections: Retrieving a Specified Number of Items From a Collection With take

John Koster
John Koster
April 22, 2018

The take method in Laravel's Collection class allows you to retrieve a specified number of items from the collection. By providing a positive limit, you can retrieve items from the beginning of the collection, whereas a negative limit will return items from the end. This method returns a new Collection instance and does not modify the original collection.

Laravel 5

Laravel 5 Collections: Retrieving a Subset Of a Collections Elements With only

John Koster
John Koster
April 22, 2018

The only method in Laravel is used to return key/value pairs from a collection where the keys are present in the supplied $keys array. If $keys is null, a copy of the original collection is returned. For example, you can use only to retrieve only the first_name and last_name from a collection of users.

Laravel 5

Laravel 5 Collections: Retrieving and Removing an Element From a Collection With pull

John Koster
John Koster
April 22, 2018

The pull method removes and returns a specific item from a collection. If the item doesn't exist, it will return an optional default value. This method modifies the original collection.

Laravel 5

Laravel 5 Collections: Retrieving and Removing the Last Collection Element With pop

John Koster
John Koster
April 22, 2018

The pop method in Laravel is used to remove and retrieve the last item from a collection. If the collection is empty, it returns null. This method modifies the original collection. It is similar to PHP's array_pop function.

Laravel 5

Laravel 5 Collections: Retrieving Collection Element Values With pluck

John Koster
John Koster
April 22, 2018

The pluck method in Laravel allows you to retrieve a list of values from a collection. It takes two parameters: $value to specify the property to become the value in the resulting collection, and $key to specify the property to become the key in the resulting collection. You can use pluck to easily extract specific data from a collection, such as product names or versions. Additionally, you can also create a new collection with the version as the value and the product name as the key.

Laravel 5

Laravel 5 Collections: Retrieving Collection Elements At a Specific Interval With nth

John Koster
John Koster
April 22, 2018

The nth method in PHP allows you to retrieve elements from a collection at a specific interval. By specifying the step and offset, you can get every nth element starting from a given index. If a step of 1 and an offset of 0 are used, the original collection will be returned. For example, you can use the nth method with the range function to retrieve both even and odd numbers between 1 and 10.

Laravel 5

Laravel 5 Collections: Retrieving Collection Elements Whose Keys Are Not Present in the Provided Keys With diffKeys

John Koster
John Koster
April 22, 2018

The diffKeys method in Laravel Collection is used to determine the items whose keys are not present in another collection's keys. It takes an array or another Collection as a parameter. The method returns a new Collection that contains the items not present in the supplied collection. The example code demonstrates how to use the diffKeys method and provides an expected output.

Laravel 5

Laravel 5 Collections: Retrieving Collection Elements With all

John Koster
John Koster
April 22, 2018

The all method in Laravel's Collection class retrieves the underlying array used to hold the collection's data. It returns an array with the same key-value pairs as the collection. Nested collections are also preserved. To convert the nested collections to arrays, use the toArray method.

Laravel 5

Laravel 5 Collections: Retrieving Collection Elements With get

John Koster
John Koster
April 22, 2018

The get method in Laravel's Collection class retrieves an item from a collection based on its key. It can also return a default value if the key doesn't exist in the collection. Additionally, you can pass a callback as the default value. The method can also retrieve items based on numeric keys.

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