<!--
    id  :       Tutorial PHP :[interface]
    date:       2026-01-06
    url :       https://www.w3schools.com/php/php_oop_interfaces.asp
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    description:
        Interfaces ...
            • allow you to specify what methods a class
                should implement.
            •   make it easy to use a variety of different
                classes in the same way.
                When one or more classes use the same interface,
                    it is referred to as "polymorphism".
            •   are declared with the interface
                    keyword: 'interface'
            •   are similar to abstract classes.
        PHP - Interfaces vs. Abstract Classes
            The difference between interfaces and abstract classes are:
            •   Interfaces cannot have properties,
                    while abstract classes can
            •   all methods must be public,
                    while abstract class methods is public or protected
            •   all methods in an interface are abstract,
                    so they cannot be implemented in code and
                        the abstract keyword is not necessary
        Classes can implement an interface
            while inheriting from another class at the same time.
    content:
    •   m:  define
    •   m:  class
    •   m:  using
-->

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    date    :   2025-12-28
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    date    :   2026-01-23
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    rem     :   the remote-server doesn't support
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    content :   main && tools && mySql && html

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                    •   m:  C.html.body
                    •   m:  C.html.layout
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    date    :   2026-01-12
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        •   m:  local
        •   m:  remote
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<span style="color:green"><p>=== hdr:(ifcHdr):[p25_interface.php;40]:[2026-10-28;14:22:55].</p></span>