A question in the PHP manual

All use:: No.
Does this mean that this is a static method?
Or does it simply mean that there is this method in this class?

Reply to discussion (solution)

Indicates that there is this method
Most non-instantiation is not available.

Indicates that there is this method in the class, is not a static method to see the document, should most of it is not.

$memcache _obj = Memcache_connect ("localhost", 11211);/* Process Programming API */memcache_add ($memcache _obj, ' var_key ', ' Test Variable ', false, 30);/* Object-oriented Programming API */$memcache _obj->add (' Var_key ', ' Test variable ', false, 30);

Thank you all, there is a question is the class inside self and __class__ is not the same?

__class__ just the name of the class is the string
Self is a reference to a class

@ Proud Snow star Maple Moderator Trouble reply to my question: Is it a $ A? If it is, the variable is not assigned. Why not error?

Equivalent to defining a variable, but without assigning a value. is not an error.

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