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PHP
PHP 7 uses three different types of Group Use declarations −Non-mixed-use declarationsMixed-use declarationsCompound use declarationsNon-mixed-use declarations:Non-mixed-use declaration means we do not use the classes, functions, and constructs in a single statement. Or, we can say that when we declare classes, functions, and constants separately using a use statement. It is called Non-mixed group use declarations.Exampleuse Publishers\Packt\{ Book, Ebook, Video, Presentation }; use function Publishers\Packt\{ getBook, saveBook }; use const Publishers\Packt\{ COUNT, KEY };Mixed group use declarationsWhen we combine the PHP class, function and constants in a single-use statement, it is called a mixed group use declaration.Exampleuse Publishers\Packt\ { Book, ... Read More
In PHP 7, Group Use declaration is more readable and can be used to import classes, constants, and functions easily from the same namespace.Group Use declaration is used to import multiple structures easily from a namespace and cuts a good level of volubility in most cases. It is also useful to identify the multiple imported entities which belong to the same module.Example 1The following example shows the code before PHP 7 −Example 2The following example shows the code for PHP7 or PHP 7+use com\India\{ClassX, ClassY, ClassZ as Z}; use function com\India\{fn_x, fn_y, fn_z}; use const com\India\{ConstX, ConstY, ConstZ};ExplanationIn Example 1, ... Read More
When it is required to remove duplicates from a circular linked list, a 'Node' class needs to be created. In this class, there are two attributes, the data that is present in the node, and the access to the next node of the linked list.In a circular linked list, the head and the rear are adjacent to each other. They are connected to form a circle, and don't have 'NULL' value in the last node.Another class needs to be created that would have an initialization function, and the head of the node would be initialized to 'None'. Multiple methods are defined ... Read More
When it is required to insert a new node at the middle of the circular linked list, a 'Node' class needs to be created. In this class, there are two attributes, the data that is present in the node, and the access to the next node of the linked list.In a circular linked list, the head and the rear are adjacent to each other. They are connected to form a circle, and don't have 'NULL' value in the last node.Another class needs to be created that would have an initialization function, and the head of the node would be initialized ... Read More
When it is required to insert a new node at the end of the circular linked list, a 'Node' class needs to be created. In this class, there are two attributes, the data that is present in the node, and the access to the next node of the linked list.In a circular linked list, the head and the rear are adjacent to each other. They are connected to form a circle, and don't have 'NULL' value in the last node.Another class needs to be created that would have an initialization function, and the head of the node would be initialized ... Read More
When it is required to insert a new node at the beginning of a circular linked list, a 'Node' class needs to be created. In this class, there are two attributes, the data that is present in the node, and the access to the next node of the linked list.In a circular linked list, the head and the rear are adjacent to each other. They are connected to form a circle, and don't have 'NULL' value in the last node.Another class needs to be created that would have an initialization function, and the head of the node would be initialized ... Read More
When it is required to find the maximum and minimum node values from a circular linked list, a 'Node' class needs to be created. In this class, there are two attributes, the data that is present in the node, and the access to the next node of the linked list.In a circular linked list, the head and the rear are adjacent to each other. They are connected to form a circle, and don't have 'NULL' value in the last node.Another class needs to be created that would have an initialization function, and the head of the node would be initialized ... Read More
When it is required to delete a node from the middle of the circular linked list, a 'Node' class needs to be created. In this class, there are two attributes, the data that is present in the node, and the access to the next node of the linked list.In a circular linked list, the head and the rear are adjacent to each other. They are connected to form a circle, and don't have 'NULL' value in the last node.Another class needs to be created that would have an initialization function, and the head of the node would be initialized to ... Read More
When it is required to delete a node from the end of a circular linked list, a 'Node' class needs to be created. In this class, there are two attributes, the data that is present in the node, and the access to the next node of the linked list.In a circular linked list, the head and the rear are adjacent to each other. They are connected to form a circle, and don't have 'NULL' value in the last node.Another 'linked_list' class needs to be created that would have an initialization function, and the head of the node would be initialized ... Read More
When it is required to create a circular linked list and display it, a 'Node' class needs to be created. In this class, there are two attributes, the data that is present in the node, and the access to the next node of the linked list. In a circular linked list, the head and the rear are adjacent to each other. They are connected to form a circle, and don't have 'NULL' value in the last node.Another 'linked_list' class needs to be created that would have an initialization function, and the head of the node would be initialized to 'None'. Below ... Read More