<?php
namespace A;
// function calls
foo(); // first tries to call "foo" defined in namespace "A"
// then calls internal function "foo"
::foo(); // calls function "foo" defined in global scope
// class references
new B(); // first tries to create object of class "B" defined in namespace "A"
// then creates object of internal class "B"
new ::B(); // creates object of class "B" defined in global scope
// static methods/namespace functions from another namespace
B::foo(); // first tries to call function "foo" from namespace "A::B"
// then calls method "foo" of internal class "B"
::B::foo(); // first tries to call function "foo" from namespace "B"
// then calls method "foo" of class "B" from global scope
// static methods/namespace functions of current namespace
A::foo(); // first tries to call function "foo" from namespace "A::A"
// then tries to call method "foo" of class "A" from namespace "A"
// then tries to call function "foo" from namespace "A"
// then calls method "foo" of internal class "A"
::A::foo(); // first tries to call function "foo" from namespace "A"
// then calls method "foo" of class "A" from global scope
?>
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