PHP Namespaces (Namespace)

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Dynamic invocation method in string form

// the value of the magic constant __namespace__ is the current space name//can be combined into a string and called $comment _class_name = __namespace__. ' \comment '; $comment New $comment _class_name ();

PHP compiles the script to determine the space in which the element resides, as well as the import situation. When parsing a script, a string invocation can only be considered a unqualified name and a fully qualified name, and it never could be a qualified name.

PHP Namespaces (Namespace)