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Arrays can contain mixed elements of any type, including resources, objects. [31] Multi-dimensional arrays are created by assigning arrays as array elements. PHP has no true array type. PHP arrays are natively sparse and associative. Indexed arrays are simply hashes using integers as keys. Indexed array:
A list of links to domain objects; A single domain object; A property, collection, belonging to a domain object; An action that may be invoked on a domain object; An action result (which will typically include a domain object or list) A domain service (essentially a stateless domain object)
This has been supported for classes and interfaces since PHP 5.0, for arrays since PHP 5.1, for "callables" since PHP 5.4, and scalar (integer, float, string and boolean) types since PHP 7.0. [71] PHP 7.0 also has type declarations for function return types, expressed by placing the type name after the list of parameters, preceded by a colon ...
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clear(S): delete all elements of S. equal(S 1 ', S 2 '): checks whether the two given sets are equal (i.e. contain all and only the same elements). hash(S): returns a hash value for the static set S such that if equal(S 1, S 2) then hash(S 1) = hash(S 2) Other operations can be defined for sets with elements of a special type:
The arrays are heterogeneous: a single array can have keys of different types. PHP's associative arrays can be used to represent trees, lists, stacks, queues, and other common data structures not built into PHP. An associative array can be declared using the following syntax:
But make sure to eat all 12, the superstition goes — otherwise, the luck can go sour. In Denmark , people smash plates on their friends' or neighbors' doorsteps on New Year's Day, according to ...
It is designed for the dissemination of information, such as newsletters, news, advertising to list of subscribers. It is written in PHP and uses a MySQL database to store the information. phpList is free and open-source software subject to the terms of the GNU Affero General Public License (AGPL).